CN205331500U - High pressure valves - Google Patents
High pressure valves Download PDFInfo
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- CN205331500U CN205331500U CN201521087353.6U CN201521087353U CN205331500U CN 205331500 U CN205331500 U CN 205331500U CN 201521087353 U CN201521087353 U CN 201521087353U CN 205331500 U CN205331500 U CN 205331500U
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Abstract
The utility model provides a high pressure valves belongs to high -pressure valve field, including main blow way, foreblow gas circuit and discharge valve, main blowing is provided with main gas blowing valve on the road, be provided with gas blowing valve in advance in the foreblow gas circuit, discharge valve one end is linked together with the main way of blowing, main gas blowing valve, gas blowing valve and discharge valve all include pilot valve and main valve in advance, main gas blowing valve and in advance gas blowing valve the pilot valve with discharge valve's pilot valve is linked together, forms guide's gas circuit, discharge valve one end is linked together with the main way of blowing, foreblow gas circuit and guide's gas circuit all are linked together with the way of mainly blowing. At pneumatic in -process, compressed gas in guide's gas circuit in to discharge valve the case of pilot valve play the effect of pushing open, the time of opening of pilot valve is short to be favorable to shortening discharge valve's the time of opening. This kind of high pressure valves, compact structure, the switching time is short, and stability is high, and is longe -lived, can accelerate the bottle blowing speed of bottle blowing machine, improves the plastic bottle quality that makes.
Description
Technical field
This utility model relates to high pressure valve field, in particular to a kind of high pressure valve group。
Background technology
High pressure valve is widely used to the every field of industry manufacture, is mainly used in controlling the flowing of all kinds fluid such as gas, liquid。At present, in some automation equipments, it is often necessary to give in certain chamber the compression gas filling different air pressure to complete some technique in order, the atmospheric control design in these equipment is unreasonable, affect the quality of work efficiency and product, such as in the production process of plastic bottle。
The equipment that plastic bottle produces typically requires multiple high pressure valves are required to integrate formation high pressure valve group according to blowing technology, to complete the several committed steps in blowing technology: the pre-blowing bottle parison of mesohigh；High pressure blow-gas makes plastic bottle shape；Discharge gases at high pressure。
Generally, it is diaphragm high pressure valve or cylinder piston high pressure valve that plastic bottle produces equipment mesohigh steam supply valve, diaphragm high pressure valve the high pressure valve group integrated, owing to high pressure valve switch time is longer and less stable, cause bottle blowing speed slow, and machined plastic bottle quality is low；And the high pressure valve group integrated by cylinder piston high pressure valve, owing to main gas circuit high pressure gas and control gas circuit low pressure gas must seal off, if it occur that leakage, will result in functional inefficacy。If the sealing in control valve leaks, Small leak will result in energy loss；Gross leak will result in the functional inefficacy of high pressure valve group。
Utility model content
This utility model provides a kind of high pressure valve group, it is intended to improve the problems referred to above。
This utility model is achieved in that
High pressure valve group, including main air blowing road, pre-blowing gas circuit and air bleeding valve, described main air blowing road is provided with main purge valve, described pre-blowing gas circuit is provided with pre-purge valve, described air bleeding valve one end is connected with main air blowing road, described main purge valve, pre-purge valve and air bleeding valve all include pilot valve and main valve, described main purge valve is connected with the pilot valve of the pilot valve of pre-purge valve with described air bleeding valve, form guide's gas circuit, described air bleeding valve one end is connected with main air blowing road, and described pre-blowing gas circuit is all connected with main air blowing road with guide's gas circuit；
Described pre-blowing gas circuit is provided with the first check valve between pre-purge valve and main air blowing road；Guide's gas circuit between described pre-purge valve and main purge valve is provided with the second check valve；Guide's gas circuit between described main purge valve and air bleeding valve, and it is provided with the 3rd check valve between main air blowing road。
The effect of these three check valve is all prevent compression gas reverse flow in pneumatic system, maintains the pressure differential of each several part in high pressure valve pneumatic system。In this high pressure valve group, the pilot valve of pre-purge valve and main purge valve is normally close valve, it is to avoid leakage of compressed gas, saves resource；The pilot valve of air bleeding valve is normally open valve, it is simple to the gas in pneumatic system of draining in time, strengthens the security performance of high pressure valve group。The main valve air inlet of pre-purge valve is connected with the pre-inflatable mouth being connected with mesohigh gas；The main valve air inlet of main purge valve is connected with the main inflatable mouth being connected with gases at high pressure。This high pressure valve group, compact conformation, switch time is short, and stability is high, and the life-span is long, it is possible to accelerate the bottle blowing speed of bottle blowing machine, improves obtained plastic bottle quality。
Further, also including recovery valve, described recovery valve includes pilot valve and main valve, and one end of described recovery valve main valve is connected with main air blowing road, the described pilot valve of pre-purge valve is connected with the pilot valve of recovery valve, is provided with the 4th check valve between described pre-purge valve and the pilot valve of recovery valve。
The high pressure valve group of this structure, it is possible to realizing high pressure gas and reclaim function, save the energy, namely bottle base is after high pressure blow-gas has been shaped, and the high pressure gas in die cavity is carried out recycling, is then then exhausted from die cavity remaining gas。
Further, described main valve includes cylinder body, piston, main valve air inlet and main valve gas outlet, spatial separation in cylinder body is upper chamber and lower chambers by described piston, through hole it is provided with between upper chamber and lower chambers, described lower chambers is connected with main valve air inlet, and described main valve gas outlet is arranged on the lower surface of piston；
Being provided with pilot valve chamber and spool in pilot valve, the inherent position corresponding with spool of described pilot valve chamber is provided with pilot valve valve port, and described pilot valve is provided with pilot valve air inlet and pilot valve passage, and described pilot valve passage is connected with pilot valve valve port；Described pilot valve air inlet is connected with the upper chamber of main valve。
The high pressure valve group of this structure, controls the opening and closing of pilot valve valve port by guide structure, comes the opening and closing of further control bound, this high pressure valve, compact conformation, and switch time is short, and stability is high, and the life-span is long。
Further, described main purge valve, pre-purge valve are connected with pilot valve chamber with the pilot valve air inlet in recovery valve。
Compression gas in upper chamber enters pilot valve chamber through pilot valve air inlet, enters pilot valve passage then through pilot valve valve port and discharges。This guiding high pressure valve, pilot valve air inlet directly with pilot valve chamber, simple in construction, the stability height of pilot valve。
Further, pilot valve air inlet in described air bleeding valve is connected with pilot valve valve port, described pilot valve is provided with pilot valve air vent, and described pilot valve air vent is connected with pilot valve chamber, and the pilot valve air inlet in described air bleeding valve is connected with pilot valve passage。
The high pressure valve group of this structure, in pneumatic process, the spool of pilot valve in air bleeding valve is acted the effect of pushing open by compression gas, and the opening time of pilot valve is short, thus being conducive to shortening the opening time of air bleeding valve。This structure makes main valve inner carrier stroke unrestricted, thus main valve gas outlet aperture is big, and flow is big。Even if additionally, there is minute leakage at the sealing ring place in main valve, without the function affecting whole high pressure valve, therefore, the stability of this guiding high pressure valve is high, and the life-span is long。
Further, also including deafener, the other end of described air bleeding valve main valve is connected with deafener。
The purpose arranging deafener with ambient atmosphere in one end that the main valve of air bleeding valve communicates is in that, reduces the noise that this high pressure valve group produces, improves the environmental degree of comfort of bottle blowing machine workshop。
Further, described pre-blowing gas circuit is provided with choke valve。
The flow that the purpose of choke valve is in that to control to compress gas in pre-blowing gas circuit is set, reduces the air pressure in pre-blowing gas circuit, it is to avoid stretch in pre-blowing process at bottle embryo, cause that too greatly bottle embryo damages because moment passes into the gas pressure of die cavity。
Further, described choke valve is arranged between pre-purge valve and the first check valve。
Arrange choke valve to be advantageous in that herein, reduce air-flow out, the pace of change of the pre-blowing gas pressure being lowered in die cavity from the main valve gas outlet of pre-purge valve。
Further, described choke valve is arranged between the first check valve and main air blowing road。
Arrange choke valve to be advantageous in that herein, reduce from the first check valve air-flow out, the pace of change of the pre-blowing gas pressure being lowered in die cavity。
Further, described choke valve is arranged between pre-inflatable mouth and pre-purge valve。
Arrange choke valve to be advantageous in that herein, reduce and enter the amount compressing gas in pre-purge valve, the pace of change of the pre-blowing gas pressure being lowered in die cavity。
The beneficial effects of the utility model are: the high pressure valve group that this utility model is obtained by above-mentioned design, and the pilot valve of usual main purge valve, pre-purge valve and recovery valve is normally close valve, and the pilot valve of air bleeding valve is normally open valve。During use, first air bleeding valve energising, makes the pilot valve of air bleeding valve close；Pre-purge valve is energized, and pilot valve is opened, and then opens main valve, and mesohigh gas flows to die cavity through pre-blowing gas circuit, makes the air pressure being arranged in die cavity arrive after to a certain degree, and pre-purge valve power-off, pilot valve is closed, and then closes main valve。Then, main purge valve is energized, and pilot valve is opened, and then opens main valve, and gases at high pressure flow to die cavity through main air blowing road, makes die cavity internal gas pressure close main purge valve after arriving appointment air pressure and maintaining a period of time。Then, air bleeding valve power-off, the pilot valve of air bleeding valve is opened, and then the main valve open of air bleeding valve, and the gases at high pressure being arranged in die cavity are arranged in air through air bleeding valve, complete pneumatic process。
The high pressure valve group of this structure, in pneumatic process, the spool of pilot valve in air bleeding valve is acted the effect of pushing open by the compression gas in guide's gas circuit, and the opening time of pilot valve is short, thus being conducive to shortening the opening time of air bleeding valve。This high pressure valve group, compact conformation, switch time is short, and stability is high, and the life-span is long, it is possible to accelerate the bottle blowing speed of bottle blowing machine, improves obtained plastic bottle quality。
Accompanying drawing explanation
In order to be illustrated more clearly that the technical scheme of this utility model embodiment, the accompanying drawing used required in embodiment will be briefly described below, it is to be understood that, the following drawings illustrate only some embodiment of the present utility model, therefore the restriction to scope it is not construed as, for those of ordinary skill in the art, under the premise not paying creative work, it is also possible to obtain other relevant accompanying drawings according to these accompanying drawings。
Fig. 1 is the pneumatic schematic diagram of the first high pressure valve group that this utility model embodiment provides；
Fig. 2 is the pneumatic schematic diagram of the second high pressure valve group that this utility model embodiment provides；
Fig. 3 is the pneumatic schematic diagram of the third high pressure valve group that this utility model embodiment provides；
Fig. 4 is the pneumatic schematic diagram of the 4th kind of high pressure valve group that this utility model embodiment provides；
Fig. 5 is the pneumatic schematic diagram of the 5th kind of high pressure valve group that this utility model embodiment provides；
Fig. 6 is the structural representation of air bleeding valve in the high pressure valve group that this utility model embodiment provides；
Fig. 7 is the partial enlarged drawing of Fig. 6；
Fig. 8 is the structural representation of main purge valve, pre-purge valve and recovery valve in the high pressure valve group that this utility model embodiment provides；
Fig. 9 is the partial enlarged drawing of Fig. 8。
Figure acceptance of the bid note is respectively as follows:
Main purge valve 20, pre-purge valve 30, air bleeding valve 40, recovery valve the 50, first check valve the 60, second check valve the 70, the 3rd check valve the 80, the 4th check valve 90, choke valve 100；
Pilot valve 101, pilot valve chamber 102, pilot valve air inlet 103, pilot valve valve port 104, pilot valve passage 105, pilot valve air vent 106, cylinder body 109, piston 110, upper chamber 111, lower chambers 112, through hole 113, main valve air inlet 114, main valve gas outlet 115, sealing ring 122。
Detailed description of the invention
For making the purpose of this utility model embodiment, technical scheme and advantage clearly, below in conjunction with the accompanying drawing in this utility model embodiment, technical scheme in this utility model embodiment is clearly and completely described, obviously, described embodiment is a part of embodiment of this utility model, rather than whole embodiments。Based on the embodiment in this utility model, the every other embodiment that those of ordinary skill in the art obtain under not making creative work premise, broadly fall into the scope of this utility model protection。Therefore, below the detailed description of the embodiment of the present utility model provided in the accompanying drawings is not intended to limit claimed scope of the present utility model, but is merely representative of selected embodiment of the present utility model。Based on the embodiment in this utility model, the every other embodiment that those of ordinary skill in the art obtain under not making creative work premise, broadly fall into the scope of this utility model protection。
In description of the present utility model, it will be appreciated that, term " " center ", " longitudinal direction ", " transverse direction ", " length ", " width ", " thickness ", " on ", D score, " front ", " afterwards ", " left side ", " right side ", " vertically ", " level ", " top ", " end ", " interior ", " outward ", " clockwise ", orientation or the position relationship of the instruction such as " counterclockwise " are based on orientation shown in the drawings or position relationship, it is for only for ease of description this utility model and simplifies description, rather than the equipment of instruction or hint indication or element must have specific orientation, with specific azimuth configuration and operation, therefore it is not intended that to restriction of the present utility model。
Additionally, term " first ", " second " are only for descriptive purposes, and it is not intended that indicate or imply relative importance or the implicit quantity indicating indicated technical characteristic。Thus, define " first ", the feature of " second " can express or implicitly include one or more these features。In description of the present utility model, " multiple " are meant that two or more, unless otherwise expressly limited specifically。
In this utility model, unless otherwise clearly defined and limited, the term such as term " installation ", " being connected ", " connection ", " fixing " should be interpreted broadly, for instance, it is possible to it is fixing connection, it is also possible to be removably connect, or integral；Can be mechanically connected, it is also possible to be electrical connection；Can be joined directly together, it is also possible to be indirectly connected to by intermediary, it is possible to be connection or the interaction relationship of two elements of two element internals。For the ordinary skill in the art, it is possible to understand above-mentioned term concrete meaning in this utility model as the case may be。
In this utility model, unless otherwise clearly defined and limited, fisrt feature second feature it " on " or D score can include the first and second features and directly contact, it is also possible to include the first and second features and be not directly contact but by the other characterisation contact between them。And, fisrt feature second feature " on ", " top " and " above " include fisrt feature directly over second feature and oblique upper, or be merely representative of fisrt feature level height higher than second feature。Fisrt feature second feature " under ", " lower section " and " below " include fisrt feature immediately below second feature and obliquely downward, or be merely representative of fisrt feature level height less than second feature。
Refer to Fig. 1-Fig. 9,
The high pressure valve group that present embodiment provides, including main air blowing road, pre-blowing gas circuit and air bleeding valve 40, described main air blowing road is provided with main purge valve 20, described pre-blowing gas circuit is provided with pre-purge valve 30, described air bleeding valve 40 one end is connected with main air blowing road, described main purge valve 20, pre-purge valve 30 and air bleeding valve 40 all include pilot valve 101 and main valve, described main purge valve 20 is connected with the pilot valve 101 of the pilot valve 101 of pre-purge valve 30 with described air bleeding valve 40, form guide's gas circuit, described air bleeding valve 40 one end is connected with main air blowing road, described pre-blowing gas circuit is all connected with main air blowing road with guide's gas circuit；
Described pre-blowing gas circuit is provided with the first check valve 60 between pre-purge valve 30 and main air blowing road；Guide's gas circuit between described pre-purge valve 30 and main purge valve 20 is provided with the second check valve 70；Guide's gas circuit between described main purge valve 20 and air bleeding valve 40, and it is provided with the 3rd check valve 80 between main air blowing road。
This high pressure valve group can realize to regularly inflation or the aerofluxus according to the order of sequence of a certain particular chamber, time and the cycle of inflation or aerofluxus are all controlled, and air pressure when can regulate inflation, it is possible to it is applied in some automation equipments, is such as applied in the blow molding process of plastic bottle。
Main valve one end of main purge valve 20 connects main inflatable mouth, and the other end connects die cavity, forms main air blowing road；Main valve one end of pre-purge valve 30 connects pre-inflatable mouth, and the other end connects main air blowing road, is formed and blows afloat road in advance。Main valve one end of air bleeding valve 40 is connected with main air blowing road, and the other end is connected with outside air。The intersection point blowing afloat Lu Yuzhu air blowing road in advance is primary nodal point, on the primary nodal point main air blowing road between main purge valve 20 and die cavity；The intersection point on main valve one end of air bleeding valve 40 and main air blowing road is secondary nodal point, on the secondary nodal point main air blowing road between primary nodal point and die cavity。
The pilot valve 101 of pre-purge valve 30 is connected with the pilot valve 101 of air bleeding valve 40, forms guide's gas circuit。The pilot valve 101 of main purge valve 20 is also connected with the pilot valve 101 of air bleeding valve 40。Intersection point between pilot valve and guide's gas circuit of main purge valve 20 is the 3rd node；Guide's gas circuit between 3rd node and the pilot valve 101 of air bleeding valve 40, saves breather line with main air blowing road by one and is connected, and the intersection point on this breather line and main air blowing road is fourth node, and the intersection point between guide's gas circuit is the 5th node。
First check valve 60 is arranged between pre-purge valve 30 and primary nodal point, and the second check valve 70 is arranged between pilot valve 101 and the 3rd node of pre-purge valve 30, and the 3rd check valve 80 is arranged between fourth node and the 5th node。The effect of these three check valve is all prevent compression gas reverse flow in pneumatic system, maintains the pressure differential of each several part in high pressure valve pneumatic system。
In this high pressure valve group, the pilot valve 101 of pre-purge valve 30 and main purge valve 20 is normally close valve, it is to avoid leakage of compressed gas, saves resource；The pilot valve 101 of air bleeding valve 40 is normally open valve, it is simple to the gas in pneumatic system of draining in time, strengthens the security performance of high pressure valve group。The main valve air inlet 114 of pre-purge valve 30 is connected with the pre-inflatable mouth being connected with mesohigh gas；The main valve air inlet 114 of main purge valve 20 is connected with the main inflatable mouth being connected with gases at high pressure。During use, first air bleeding valve 40 is energized, and makes the pilot valve of air bleeding valve close；Pre-purge valve 30 is energized, and pilot valve 101 is opened, and then opens main valve, and mesohigh compression gas flows to die cavity through pre-blowing gas circuit, makes the bottle embryo being arranged in die cavity expand into after to a certain degree, the power-off of pre-purge valve 30, and pilot valve 101 is closed, and then closes main valve。Then, main purge valve 20 is energized, and pilot valve 101 is opened, and then opens main valve, and high pressure compressed gas flows to die cavity through main air blowing road, makes bottle embryo shape according to the shape of mould, and keep ventilation a period of time after close main purge valve 20。Then, air bleeding valve 40 power-off, the pilot valve 101 of air bleeding valve 40 is opened, and then the main valve open of air bleeding valve, and the gases at high pressure being arranged in die cavity are arranged in air through air bleeding valve, complete pneumatic process。This high pressure valve group, compact conformation, switch time is short, and stability is high, and the life-span is long, it is possible to accelerate the bottle blowing speed of bottle blowing machine, improves obtained plastic bottle quality。
Further, also include recovery valve 50, described recovery valve 50 includes pilot valve 101 and main valve, one end of described recovery valve 50 main valve is connected with main air blowing road, the pilot valve of described pre-purge valve 30 is connected with the pilot valve of recovery valve 50, is provided with the 4th check valve 90 between described pre-purge valve 30 and the pilot valve of recovery valve 50。
Main valve one end of recovery valve 50 is connected with main air blowing road, and the other end is connected with reclaiming QI KOU, and the pilot valve 101 of recovery valve 50 connects with pre-blowing gas circuit, and this intersection point is the 5th node, in the 5th node pre-blowing gas circuit between pre-purge valve 30 and the second check valve 70。The high pressure valve group of this structure, it is possible to realizing high pressure gas and reclaim function, save the energy, namely bottle base is after high pressure blow-gas has been shaped, and the high pressure gas in die cavity is carried out recycling, is then then exhausted from die cavity remaining gas。
Further, described main valve includes cylinder body 109, piston 110, main valve air inlet 114 and main valve gas outlet 115, spatial separation in cylinder body 109 is upper chamber 111 and lower chambers 112 by described piston 110, through hole 113 it is provided with between upper chamber 111 and lower chambers 112, described lower chambers 112 is connected with main valve air inlet 114, and described main valve gas outlet 115 is arranged on the lower surface of piston 110；Pilot valve chamber 102 and spool it is provided with in pilot valve 101, the inherent position corresponding with spool of described pilot valve chamber 102 offers pilot valve valve port 104, described pilot valve 101 is provided with pilot valve air inlet 103 and pilot valve passage 105, and described pilot valve passage 105 is connected with pilot valve valve port 104；Described pilot valve air inlet 103 is connected with the upper chamber 111 of main valve。
Main valve air inlet 114 is all connected with lower chambers 112 with main valve gas outlet 115, when piston 110 moves downwardly to lowermost end, the lower surface of piston 110 blocks the path between main valve air inlet 114 and main valve gas outlet 115, now, main valve air inlet 114 still keeps connecting with through hole 113 by lower chambers 112。When piston 110 moves upward, the path between main valve air inlet 114 and main valve gas outlet 115 is opened。
The guiding high pressure valve of this structure, controls the opening and closing of pilot valve valve port 104 by guide structure, comes the opening and closing of further control bound, this high pressure valve, compact conformation, and switch time is short, and stability is high, and the life-span is long。
Preferably, described main purge valve 20, pre-purge valve 30 are connected with pilot valve chamber 102 with the pilot valve air inlet 103 in recovery valve 50。Compression gas in upper chamber 111 enters pilot valve chamber 102 through pilot valve air inlet 103, enters pilot valve passage 105 then through pilot valve valve port 104 and discharges。The high pressure valve group of this structure, pilot valve air inlet 103 directly connects with pilot valve chamber 102, simple in construction, and the stability of pilot valve 101 is high。
Preferably, pilot valve air inlet 103 in described air bleeding valve 40 is connected with pilot valve valve port 104, described pilot valve 101 is provided with pilot valve air vent 106, described pilot valve air vent 106 is connected with pilot valve chamber 102, and the pilot valve air inlet 103 in described air bleeding valve 40 is connected with pilot valve passage 105。Pilot valve air inlet 103 one end is connected with the upper chamber 111 of main valve, the other end is connected with pilot valve valve port 104, compression gas in upper chamber 111 arrives pilot valve valve port 104 through pilot valve air inlet 103, then pilot valve chamber 102 is entered through pilot valve valve port 104, discharge then through the pilot valve air vent 106 being connected with pilot valve chamber 102, form guide's gas circuit。In this process, the spool of pilot valve 101 is acted the effect of pushing open, this guiding high pressure valve by compression gas, and the opening time of guide structure is short, thus being conducive to shortening the opening time of air bleeding valve 40 main valve。
The high pressure valve group of this structure, controls the opening and closing of pilot valve valve port 104 by guide structure, carrys out the opening and closing of further control bound, and guide structure can with the opening and closing of only small energy hole heavy caliber main valve, and opening/closing time is short, and efficiency is high。This guide structure makes main valve inner carrier 110 stroke unrestricted, thus main valve gas outlet 115 aperture is big, and flow is big。Even if additionally, there is minute leakage at sealing ring 122 place in main valve, without the function affecting whole high pressure valve, therefore, the stability of this guiding high pressure valve is high, and the life-span is long。
Preferably, also including deafener, the other end of described air bleeding valve 40 main valve is connected with deafener。The purpose arranging deafener with ambient atmosphere in one end that the main valve of air bleeding valve 40 communicates is in that, reduces the noise that this high pressure valve group produces, improves the environmental degree of comfort of bottle blowing machine workshop。
Further, described pre-blowing gas circuit is provided with choke valve 100。The flow that the purpose of choke valve 100 is in that to control to compress gas in pre-blowing gas circuit is set, reduces the pace of change of air pressure in pre-blowing gas circuit, it is to avoid stretch in pre-blowing process at bottle embryo, cause that too greatly bottle embryo damages because moment passes into the gas pressure of die cavity。
Preferably, described choke valve 100 is arranged between pre-purge valve 30 and the first check valve 60。
Or, described choke valve 100 is arranged between the first check valve 60 and main air blowing road。Arrange choke valve 100 to be advantageous in that herein, reduce from the first check valve 60 air-flow out, the air pressure change speed of the pre-blowing being lowered in die cavity。
Or, described choke valve 100 is arranged between pre-inflatable mouth and pre-purge valve 30。Arrange choke valve 100 to be advantageous in that herein, reduce and enter the amount compressing gas in pre-purge valve 30, the air pressure change speed of the pre-blowing being lowered in die cavity。
For knowing explanation this utility model, present embodiment lists 2 specific embodiments:
Embodiment 1, as shown in Fig. 1 and Fig. 6-Fig. 9,
A kind of high pressure valve group, including main air blowing road, pre-blowing gas circuit and air bleeding valve 40, described main air blowing road is provided with main purge valve 20, described pre-blowing gas circuit is provided with pre-purge valve 30, described air bleeding valve 40 one end is connected with main air blowing road, described main purge valve 20, pre-purge valve 30 and air bleeding valve 40 all include pilot valve 101 and main valve, described main purge valve 20 is connected with the pilot valve 101 of the pilot valve 101 of pre-purge valve 30 with described air bleeding valve 40, form guide's gas circuit, described air bleeding valve 40 one end is connected with main air blowing road, described pre-blowing gas circuit is all connected with main air blowing road with guide's gas circuit；
Described pre-blowing gas circuit is provided with the first check valve 60 between pre-purge valve 30 and main air blowing road；Guide's gas circuit between described pre-purge valve 30 and main purge valve 20 is provided with the second check valve 70；Guide's gas circuit between described main purge valve 20 and air bleeding valve 40, and it is provided with the 3rd check valve 80 between main air blowing road。
Described main valve includes cylinder body 109, piston 110, main valve air inlet 114 and main valve gas outlet 115, spatial separation in cylinder body 109 is upper chamber 111 and lower chambers 112 by described piston 110, through hole 113 it is provided with between upper chamber 111 and lower chambers 112, described lower chambers 112 is connected with main valve air inlet 114, and described main valve gas outlet 115 is arranged on the lower surface of piston 110；Pilot valve chamber 102 and spool it is provided with in pilot valve 101, the inherent position corresponding with spool of described pilot valve chamber 102 offers pilot valve valve port 104, described pilot valve 101 is provided with pilot valve air inlet 103 and pilot valve passage 105, and described pilot valve passage 105 is connected with pilot valve valve port 104；Described pilot valve air inlet 103 is connected with the upper chamber 111 of main valve。
Pilot valve air inlet 103 in described main purge valve 20, pre-purge valve 30 is connected with pilot valve chamber 102。Pilot valve air inlet 103 in described air bleeding valve 40 is connected with pilot valve valve port 104, described pilot valve 101 is provided with pilot valve air vent 106, described pilot valve air vent 106 is connected with pilot valve chamber 102, and the pilot valve air inlet 103 in described air bleeding valve 40 is connected with pilot valve passage 105。
Embodiment 2, as shown in Fig. 2 and Fig. 6-Fig. 9,
A kind of high pressure valve group, including main air blowing road, pre-blowing gas circuit and air bleeding valve 40, described main air blowing road is provided with main purge valve 20, described pre-blowing gas circuit is provided with pre-purge valve 30, described air bleeding valve 40 one end is connected with main air blowing road, described main purge valve 20, pre-purge valve 30 and air bleeding valve 40 all include pilot valve 101 and main valve, described main purge valve 20 is connected with the pilot valve 101 of the pilot valve 101 of pre-purge valve 30 with described air bleeding valve 40, form guide's gas circuit, described air bleeding valve 40 one end is connected with main air blowing road, described pre-blowing gas circuit is all connected with main air blowing road with guide's gas circuit；Also including recovery valve 50, described recovery valve 50 includes pilot valve 101 and main valve, and one end of described recovery valve 50 main valve is connected with main air blowing road, and the described pilot valve of pre-purge valve 30 is connected with the pilot valve of recovery valve 50。
Described pre-blowing gas circuit is provided with the first check valve 60 between pre-purge valve 30 and main air blowing road；Guide's gas circuit between described pre-purge valve 30 and main purge valve 20 is provided with the second check valve 70；Guide's gas circuit between described main purge valve 20 and air bleeding valve 40, and it is provided with the 3rd check valve 80 between main air blowing road。It is provided with the 4th check valve 90 between described pre-purge valve 30 and the pilot valve of recovery valve 50。
Described main valve includes cylinder body 109, piston 110, main valve air inlet 114 and main valve gas outlet 115, spatial separation in cylinder body 109 is upper chamber 111 and lower chambers 112 by described piston 110, through hole 113 it is provided with between upper chamber 111 and lower chambers 112, described lower chambers 112 is connected with main valve air inlet 114, and described main valve gas outlet 115 is arranged on the lower surface of piston 110；Pilot valve chamber 102 and spool it is provided with in pilot valve 101, the inherent position corresponding with spool of described pilot valve chamber 102 offers pilot valve valve port 104, described pilot valve 101 is provided with pilot valve air inlet 103 and pilot valve passage 105, and described pilot valve passage 105 is connected with pilot valve valve port 104；Described pilot valve air inlet 103 is connected with the upper chamber 111 of main valve。
Described main purge valve 20, pre-purge valve 30 are connected with pilot valve chamber 102 with the pilot valve air inlet 103 in air bleeding valve 40。Pilot valve air inlet 103 in described air bleeding valve 40 is connected with pilot valve valve port 104, described pilot valve 101 is provided with pilot valve air vent 106, described pilot valve air vent 106 is connected with pilot valve chamber 102, and the pilot valve air inlet 103 in described air bleeding valve 40 is connected with pilot valve passage 105。
The foregoing is only preferred implementation of the present utility model, be not limited to this utility model, for a person skilled in the art, this utility model can have various modifications and variations。All within spirit of the present utility model and principle, any amendment of making, equivalent replacement, improvement etc., should be included within protection domain of the present utility model。
Claims (10)
1. high pressure valve group, it is characterized in that, including main air blowing road, pre-blowing gas circuit and air bleeding valve, described main air blowing road is provided with main purge valve, described pre-blowing gas circuit is provided with pre-purge valve, described air bleeding valve one end is connected with main air blowing road, and described main purge valve, pre-purge valve and air bleeding valve all include pilot valve and main valve；Described main purge valve is connected with the pilot valve of the pilot valve of pre-purge valve with described air bleeding valve, forms guide's gas circuit；Described air bleeding valve one end is connected with main air blowing road, and described pre-blowing gas circuit is all connected with main air blowing road with guide's gas circuit；
Described pre-blowing gas circuit is provided with the first check valve between pre-purge valve and main air blowing road；Guide's gas circuit between described pre-purge valve and main purge valve is provided with the second check valve；Guide's gas circuit between described main purge valve and air bleeding valve, and it is provided with the 3rd check valve between main air blowing road。
2. high pressure valve group according to claim 1, it is characterized in that, also include recovery valve, described recovery valve includes pilot valve and main valve, one end of the main valve of described recovery valve is connected with main air blowing road, the described pilot valve of pre-purge valve is connected with the pilot valve of recovery valve, is provided with the 4th check valve between described pre-purge valve and the pilot valve of recovery valve。
3. high pressure valve group according to claim 1 and 2, it is characterized in that, described main valve includes cylinder body, piston, main valve air inlet and main valve gas outlet, spatial separation in cylinder body is upper chamber and lower chambers by described piston, through hole it is provided with between upper chamber and lower chambers, described lower chambers is connected with main valve air inlet, and described main valve gas outlet is arranged on the lower surface of piston；
Being provided with pilot valve chamber and spool in pilot valve, the inherent position corresponding with spool of described pilot valve chamber offers pilot valve valve port, and described pilot valve is provided with pilot valve air inlet and pilot valve passage, and described pilot valve passage is connected with pilot valve valve port；Described pilot valve air inlet is connected with the upper chamber of main valve。
4. high pressure valve group according to claim 3, it is characterised in that described main purge valve, pre-purge valve are connected with pilot valve chamber with the pilot valve air inlet in recovery valve。
5. high pressure valve group according to claim 3, it is characterized in that, pilot valve air inlet in described air bleeding valve is connected with pilot valve valve port, described pilot valve is provided with pilot valve air vent, described pilot valve air vent is connected with pilot valve chamber, and the pilot valve air inlet in described air bleeding valve is connected with pilot valve passage。
6. high pressure valve group according to claim 1, it is characterised in that also including deafener, the other end of described air bleeding valve main valve is connected with deafener。
7. the high pressure valve group according to claim 1 or 2 or 6, it is characterised in that be provided with choke valve in described pre-blowing gas circuit。
8. high pressure valve group according to claim 7, it is characterised in that described choke valve is arranged between pre-purge valve and the first check valve。
9. high pressure valve group according to claim 7, it is characterised in that described choke valve is arranged between the first check valve and main air blowing road。
10. high pressure valve group according to claim 7, it is characterised in that described choke valve is arranged between pre-inflatable mouth and pre-purge valve。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521087353.6U CN205331500U (en) | 2015-12-23 | 2015-12-23 | High pressure valves |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521087353.6U CN205331500U (en) | 2015-12-23 | 2015-12-23 | High pressure valves |
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| Publication Number | Publication Date |
|---|---|
| CN205331500U true CN205331500U (en) | 2016-06-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201521087353.6U Active CN205331500U (en) | 2015-12-23 | 2015-12-23 | High pressure valves |
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| CN (1) | CN205331500U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110170912A (en) * | 2019-05-30 | 2019-08-27 | 湖南永创机电设备有限公司 | A kind of vacuum suction and air blowing blanking device for glass substrate polishing |
| CN111075786A (en) * | 2019-11-29 | 2020-04-28 | 张巍 | Air circuit block and air circuit valve block assembly |
| CN114368132A (en) * | 2022-01-06 | 2022-04-19 | 苏州星贝尔中空成型设备有限公司 | Quick exhaust structure of material base |
-
2015
- 2015-12-23 CN CN201521087353.6U patent/CN205331500U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110170912A (en) * | 2019-05-30 | 2019-08-27 | 湖南永创机电设备有限公司 | A kind of vacuum suction and air blowing blanking device for glass substrate polishing |
| CN110170912B (en) * | 2019-05-30 | 2024-03-15 | 湖南永创机电设备有限公司 | Vacuum adsorption and blowing discharging device for polishing glass substrate |
| CN111075786A (en) * | 2019-11-29 | 2020-04-28 | 张巍 | Air circuit block and air circuit valve block assembly |
| CN111075786B (en) * | 2019-11-29 | 2022-03-29 | 张巍 | Air circuit block and air circuit valve block assembly |
| CN114368132A (en) * | 2022-01-06 | 2022-04-19 | 苏州星贝尔中空成型设备有限公司 | Quick exhaust structure of material base |
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