CN105736791B - The valve body of plastic cut-off valve of injection molding - Google Patents
The valve body of plastic cut-off valve of injection molding Download PDFInfo
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- CN105736791B CN105736791B CN201610264256.2A CN201610264256A CN105736791B CN 105736791 B CN105736791 B CN 105736791B CN 201610264256 A CN201610264256 A CN 201610264256A CN 105736791 B CN105736791 B CN 105736791B
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- valve
- injection molding
- cavity
- outflow port
- valve body
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K27/00—Construction of housing; Use of materials therefor
- F16K27/02—Construction of housing; Use of materials therefor of lift valves
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/32—Details
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/32—Details
- F16K1/34—Cutting-off parts, e.g. valve members, seats
- F16K1/42—Valve seats
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
- Check Valves (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
Abstract
The valve body of plastic cut-off valve of injection molding, with flow inlet, outflow port, valve deck connector and valve seat, valve seat is open with valve seat, have between flow inlet and valve seat opening by the cavity formed from flow inlet core pulling when injection molding serve as into runner, there is the body cavity served as by the cavity formed from valve deck connector core pulling when injection molding between valve seat and valve deck connector, there is runner between the body cavity and outflow port, it is described go out runner include the cavity by being formed from outflow port core pulling when injection molding and the cavity by being formed from the madial wall side core-pulling of body cavity outflow port side when injection molding, and the cavity formed by supplementing core pulling when injection molding.The structure of the valve body of plastic cut-off valve can help the runner that goes out of valve body of plastic cut-off valve that there is enough latus rectums, the valve body of the structure to have wide applicability under various mounting conditions.
Description
Technical field
The present invention relates to a kind of valve body of plastic cut-off valve structures of injection molding, especially a kind of to make plastic stop valve valve
Body goes out runner with enough latus rectums and the valve body of plastic cut-off valve structure with broad applicability under various mounting conditions.
Background technology
Plastic stop valve is the plastic liquid pipe switch widely applied in many fields at present.Plastic stop valve valve
Body is usually through mold injection molding.In valve body into runner, go out runner and pass in and out the valve seat that is open with valve seat between runner
It is off valve and realizes that fluid pipe road carries out the necessary structure of switch control.The structure of entry/exit runner in valve body of plastic cut-off valve,
Core pulling technique is restricted in by injection molding process, and there is the new problems different from conventional metals shut-off valve.Main problem it
First, the fluid channel in plastic valve body how to be made to have enough cross sectional areas, (i.e. enough latus rectums, also referred to as foot are logical
Diameter).In standard GB/T/T 28494 and international standard ISO21787, all there are relevant rule to the latus rectum of plastic stop valve
It is fixed.In valve body of plastic cut-off valve, the entry/exit runner of plastics valve body is typically to be formed by by core pulling technique in injection molding
Cavity is constituted, it is difficult to increase the latus rectum of runner by using the mode in warp architecture channel as metal shut-off valve.By the note
Be moulded into the restriction of core pulling technique during type, the latus rectum of the entry/exit runner near the valve seat opening of valve body of plastic cut-off valve just at
It influences " bottleneck " of valve body latus rectum.The plastics valve body entry/exit runner latus rectum is solved for this purpose, having many documents and reporting respectively
The method of problem.
A kind of plastic stop valve disclosed in Chinese patent 01256569.5, using makes the axis of outflow port be higher than flow inlet
Axis (i.e. low in and high out) mode.Because the axis of its outflow port is not accordant to the old routine use habit higher than the axis of flow inlet, therefore
Market is difficult for be received.
A kind of plastic stop valve disclosed in Chinese patent 01257017.6, use will be set to hot melt spigot-and-socket formula flow inlet
The socket joint limit protrusion of circular tube shaped runner lower half to the sum of central angle be less than 160 °, and hot melt spigot-and-socket formula will be set to and gone out
The socket joint limit protrusion of the circular tube shaped runner upper half of head piece to the sum of central angle be less than 160 ° of mode.Although the program
The effect very little for making moderate progress, but improving for the expansion of runner, can not achieve the purpose that enough latus rectums.
A kind of manufacturing method of valve body of plastic cut-off valve disclosed in Chinese patent 03117371.3, using making at least two
Capable assembling is the plastics valve body piece of a complete stop valve body, and made plastics valve body piece is mutually permanently connected
For the scheme of a complete, non-removable valve body of plastic cut-off valve.The advantages of program is to be no longer influenced by disposably
The limitation of emphasis considers when integral molded plastic is molded demoulding, core pulling factor makes to expand into runner.The plastic stop valve valve of the program
The manufacturing method of body can achieve the purpose that enough latus rectums.The disadvantages of this solution is that the quality that is fixedly connected at " piece " position cannot get
Ensure.
A kind of direct through type plastic stop valve disclosed in Chinese patent 03234620.4 opens a window using in body base
Mouthful, and merged with the matching of the madial wall of the recessed opening portion of the body base by the peripheral side wall by back cover lid and be fixedly connected
The scheme of (can be described as a kind of " windowing patch installing ").The advantages of program is the chance by increasing a core pulling, is made into runner
Expand.The plastic stop valve of the program can reach the day of enough latus rectums.The disadvantages of this solution is that the fixed of " patch " position connects
Quality is connect to cannot be guaranteed.
A kind of big flow plastic stop valve disclosed in Chinese patent 200420032638.5, it is proposed that make into circulation road
Axis is tilted from top to bottom from flow inlet to valve port direction, go out the central axes of circulation road then from valve port to outflow port direction on to
Under inclined scheme.Although the program can be helpful to the expansion of runner, its effect very little can not reach enough latus rectums
Purpose.
A kind of plastic stop valve disclosed in Chinese Patent Application No. 200510060119.9, using making valve deck connector and valve
Lid by therebetween can mutually matched bonding plane be mutually bonded, to make runner in a disguised form increase a tube bundle extracting machine meeting, with realization
Expand and ensure the sufficient latus rectum of runner.But the disadvantage is that craftsmanship difference makes difficulty.Finally do not form product.
A kind of valve body of plastic cut-off valve disclosed in Chinese patent 200820140498.1 uses and goes out runner bottom in valve body
Portion offers the core-drawing hole communicated with outside valve body, is then sealed the core-drawing hole by the closeouts being fixedly installed in the core-drawing hole
It blocks (this is another " windowing patch installing ").Its advantage is all the chance by increasing a core pulling, runner can be made to expand, but
The quality that is fixedly connected for bringing " patch " position therewith cannot be guaranteed, and be difficult to that hidden danger of discovery etc. is examined newly to ask
Topic.Therefore, it brings quality to be not easy the new problem ensured as cost using " windowing patch installing ", exchanges for and increase tube bundle extracting machine and can protect
Demonstrate,prove the mode of runner latus rectum, real non-good plan.
For the above situation, the applicant is a kind of disclosed in No. 201410509081.8 applications of Chinese Patent Application No.
The valve body of plastic cut-off valve of injection molding uses a kind of cavity by being formed from outflow port core pulling when injection molding and by being molded
The cavity formed from the madial wall side core-pulling of body cavity outflow port side when molding collectively acts as out the plastic stop valve of runner
Valve body.This application is it is emphasised that " disposable entirety injection molding ".Because only " disposable whole in prior art level
The valve body of injection molding " just can guarantee that valve body has reliable intensity.And foregoing 03117371.3 disclosure of Chinese patent
A kind of valve body of plastic cut-off valve manufacturing method, the disadvantages of this solution is being fixedly connected with quality and cannot protecting for " piece " position
Card.A kind of valve body of plastic cut-off valve disclosed in Chinese patent 200820140498.1, using the scheme of " windowing patch installing ",
But the quality that is fixedly connected for being somebody's turn to do " patch " position cannot be guaranteed.
Certainly, the connection of valve body and valve deck is also a kind of split.But " connection of valve body and valve deck " and " valve body itself
The connection (or connection of valve body and patch) of piece " is different.The joint face of valve body and valve deck is typically round, and valve body is certainly
The joint face (or joint face of valve body and patch) of body piece is always special-shaped.The split craftsmanship of special-shaped joint face is bad.In addition,
The joint face of valve body and valve deck has enough length, and the joint face (or joint face of valve body and patch) of valve body itself piece
This length is not achieved.So the joint face of valve deck and valve body can have reliable intensity, and the connection of valve body itself piece
Face (or joint face of valve body and patch) does not have this reliable intensity.
Experiments have shown that the program has certain remarkable result to the expansion for going out runner of valve body of plastic cut-off valve.But it tries
Simultaneously, it was also found that if also to ensure also there are enough latus rectums into runner while runner has enough latus rectums ensureing in testing,
With regard to needing into reservation " lower concave part " appropriate at runner, i.e., it is corresponding to have one in the shape below valve body of plastic cut-off valve
" protrusion part "." protrusion part " although in this shape to mostly using that will not adversely affect, to certain spies
Determining use occasion can make troubles, or even can be restricted.
Invention content
For the above situation, the present invention provides one kind on the basis of above-mentioned No. 201410509081.8 patent applications
It is further improved and the valve body of plastic cut-off valve of perfect injection molding.
The valve body of plastic cut-off valve (hereinafter referred to as " plastics valve body ") of injection molding of the present invention, have flow inlet, outflow port,
Valve deck connector and valve seat, valve seat with valve seat be open, flow inlet and valve seat opening between have by when injection molding from influent stream
What the cavity that mouthful core pulling is formed served as have into runner, between valve seat and valve deck connector by when injection molding from valve deck connector
The body cavity that serves as of cavity that core pulling is formed, has a runner between the body cavity and outflow port, it is described go out runner packet
Include by when injection molding from cavity that outflow port core pulling is formed (hereinafter referred to as " cavity by outflow port ") and by when injection molding from
The cavity (hereinafter referred to as " inside evacuation chamber ") that the madial wall side core-pulling of body cavity outflow port side is formed, it is described go out runner in
It further include the cavity (hereinafter referred to as " supplement cavity ") formed by supplementing core pulling when injection molding.
It is disposable whole injection molding to be somebody's turn to do " plastics valve body ".Being somebody's turn to do " plastics valve body " especially can realize but be not only
It is limited to, in the case where completely eliminating the protrusion part below valve body in shape, can both ensure the sufficient latus rectum into runner, simultaneously
Also it can fully ensure that out the sufficient latus rectum of runner.It is emphasized that：The program be not to sacrifice other technologies index as cost,
Therefore there is wider applicability.
Injection-molded plastic stop valve body disclosed in Chinese patent application 201410509081.8 it is emphasised that：One
On the basis of secondary property integral molded plastic is molding, ensure runner have also can guarantee while enough latus rectums have into runner it is enough logical
Diameter.But the technique " the plastics valve body " that provides must be allowed and make cooperation into runner improving the while of runner latus rectum, also
It is to say, must makes a concession (sacrifice other technologies index is cost) into runner.The method of cooperation (concession) is made into runner is
Into reservation " lower concave part " appropriate at runner, i.e., one corresponding " protrusion part " is had in the shape below " plastics valve body ".
If not making cooperation (concession) into runner, that is to say, that " lower concave part " is removed, that is, removes the shape below " plastics valve body "
Upper corresponding " protrusion part ", ensures the latus rectum for having enough into runner, (as shown in Figure 1a) will encounter new difficulty again.This
The new difficulty of kind is by carefully analyzing and can find out to " plastics valve body " shown in FIG. 1.
If only seeing Fig. 1 a, as without what problem, still, it can see and go wrong from remaining several figure of Fig. 1
In the presence of.
The valve body of plastic cut-off valve of injection molding as shown in Figure 1, " cavity by outflow port " and " inside evacuation chamber " intersection
(also referred to as mutually passing through).The intersection of " outflow port by cavity " and " inside evacuation chamber " intersection surface formation be intersection (hereinafter referred to as
" intersection ")." intersection " nearby " outflow port by cavity " side to go out runner very narrow.That is, " this is mutually passed through
The runner that goes out of neighbouring " outflow port by the cavity " side of line " still has a pair by the convex angled construction of arc to be formed by out runner narrow
Place, constitutes the restraining factors for influencing runner latus rectum.
The valve body of plastic cut-off valve of injection molding of the present invention has flow inlet, outflow port, valve deck connector and valve seat, valve
Seat tool has valve seat opening, has between flow inlet and valve seat opening and is served as by the cavity formed from flow inlet core pulling when injection molding
Have into runner, between valve seat and valve deck connector and served as by the cavity formed from valve deck connector core pulling when injection molding
Body cavity, has a runner between the body cavity and outflow port, it is described go out runner include by when injection molding from going out stream
The cavity and the cavity by being formed from the madial wall side core-pulling of body cavity outflow port side when injection molding that mouth core pulling is formed,
It further includes the cavity formed by supplementing core pulling when injection molding to go out described in being characterized in runner.
Described in the present invention " supplement cavity " is located at " inside evacuation chamber " between outflow port, and and " inside evacuates
Chamber " intersection is also intersected with " cavity by outflow port ".
" inside evacuation chamber " and " cavity by outflow port " can be located at by going out in runner " supplement cavity " described in the present invention
Between.
Can be two kinds of situations herein.The first situation is " cavity by outflow port ", " inside evacuation chamber " and " supplement is empty
Chamber " three intersects each other, that is to say, that " cavity by outflow port " and " supplement cavity " intersection, " supplement cavity " and " inside evacuates
Chamber " intersects, and " cavity by outflow port " and " inside evacuation chamber " also intersect；The second situation is " cavity by outflow port " and " supplement
Cavity " intersects, " supplement cavity " and " inside evacuation chamber " intersection, and " cavity by outflow port " and " inside evacuation chamber " are non-intersecting.
Increase " supplement cavity " and can effectively solve the problem that " intersection " nearby " cavity by outflow port " side goes out runner
Narrow problem.That is, the convex angled construction of the arc that can effectively remove out runner stenosis.Ensure that runner has enough
Latus rectum.
A kind of preferred " plastics valve body " structure is to make flow inlet described in " plastics valve body " and outflow port along same
Central axis is arranged, and the lower plane for making the valve seat be open is located at the body cavity direction of flow inlet and outflow port central axis
Side.It adjusts and the lower plane of control valve seat opening is at a distance from flow inlet and outflow port central axis, it is ensured that influent stream stage property
There are enough latus rectums.As long as that is, ensureing that the lower plane of valve seat opening and flow inlet and outflow port central axis have foot
Enough distances, into runner at no longer retain " lower concave part ", i.e., without corresponding " protrusion in the shape below " plastics valve body "
Point ", it also can guarantee that influent stream road has enough latus rectums.And " cavity by outflow port ", " inside evacuation chamber ", and " supplement simultaneously
Cavity " be collectively formed it is widened go out runner, especially by " inside evacuation chamber " and " supplement cavity " height and/or
The adjusting and control that width carries out, then be sufficient to meet the needs to going out runner foot latus rectum.Experiments have shown that the above-mentioned expansion of the present invention
The measure for going out flow passage structure, for realize full-bore go out runner for have affluence.So, it can both ensure that
Under the premise of influent stream road has enough latus rectums, it also can guarantee out that runner has enough latus rectums, and into no longer retaining at runner
" lower concave part ", i.e., without corresponding " protrusion part " in the shape below " plastics valve body ".
The core pulling mode that " supplement cavity " is formed by supplementing core pulling when injection molding can regard concrete condition and determine.Wherein,
Though being not excluded for may be used in certain special cases in injection molding from the mode of outflow port core pulling.But the mode more recommended
It is in injection molding, from valve deck connector through body cavity core pulling.
On the basis of above structure of the present invention, specific implementation mode and step can select and flexible.The present invention
The valve body of plastic cut-off valve of injection molding is recommended to be formed by intermediate structure machining.That is, one plastics of injection molding
The intermediate structure of stop valve body, on the basis of the intermediate structure of the valve body of plastic cut-off valve, by secondary operation into one
Machining is walked, is ultimately formed " plastics valve body " of the present invention.The difficulty of injection mold can be reduced in this way.For example,
On the basis of above structure, the intermediate structure of the valve body of plastic cut-off valve of injection molding can be that no valve seat is open, and pass through
The further machining of secondary operation, there is no valve seat be open " plastics valve body " in valve seat on machine-shaping valve seat open
Mouthful, it ultimately forms " plastics valve body " of the present invention.
On the basis of above structure of the present invention, acceptable independent or arbitrary combination uses other further preferred
Mode includes：
The flow inlet and outflow port can separately be selected as hot melt spigot-and-socket formula, screw connected or flanged joint
The hatch frame of formula；
The valve deck connector is hot melt spigot-and-socket formula, is threaded metal insert with ring flange or inner peripheral surface
Hatch frame；
The valve body is the molding structure of integral molded plastic.
The valve body of plastic cut-off valve of injection molding of the present invention on the basis of No. 201410509081.8 contents of the patent,
By using runner by being collectively formed including newly-increased " supplement cavity ", further obviates influence and restrict out runner latus rectum
Factor and expand out runner, effect and the requirement of the full-bore of entry/exit runner can not only be fully achieved, and to influent stream
Road especially makes the " recessed into no longer needing to retain in runner of " plastics valve body " also without any special additional requirement or change
Portion ", and it is thus eliminated that " plastics valve body " external correspondence protrusion, to the use environment of plastic stop valve, condition and/or
Particular/special requirement is all not present in installation etc., is provided with wider applicability, also more meets the use habit of existing consumer.
Scheme disclosed in Chinese Patent Application No. 201410509081.8, the lower section tool in the external shape of plastic valve of the program
There is protrusion part.Should the runner stenotic condition that go out of " intersection " neighbouring " outflow port by cavity " side of " plastics valve body " be also
Existing, only the stenotic condition can be tolerated in former scheme.And once remove convex in shape below " plastics valve body "
Go out part, the runner stenotic condition that goes out of " intersection " neighbouring " outflow port by cavity " side just looms large.
The valve body of plastic cut-off valve of injection molding of the present invention on the basis of No. 201410509081.8 contents of the patent,
The technical problem to be solved is that nearby " cavity by outflow port " side goes out runner stenotic condition for improvement " intersection ".
Although proposing that the program is since " completely eliminating the protrusion part in shape below plastics valve body ".But
The technical solution is not limited to this problem.The essence of the technical solution is a kind of technical measures, which stronger can have
The expansion of power goes out runner, and using runner has enough latus rectums.
It is said differently, the application is on the basis of previous application (Chinese Patent Application No. 201410509081.8)
Further scheme.The common ground of the application and previous application (Chinese Patent Application No. 201410509081.8) is all to expand
Go out the technical measures of runner.The difference of the application and previous application (Chinese Patent Application No. 201410509081.8) are to expand
Go out in runner this problem greatly, the application is stronger than previous application (Chinese Patent Application No. 201410509081.8).
In today, the technology of the application is added on the basis of previous application (Chinese Patent Application No. 201410509081.8)
Measure, for the valve body of plastic cut-off valve of disposable whole injection molding, technical support is sufficient.That is, one
For the molding valve body of plastic cut-off valve of secondary property integral molded plastic on the problem of ensureing runner enough latus rectum, technical support is sufficient.
Below in conjunction with the drawings and specific embodiments, the above of the present invention is described in further detail again.But
The range that this should not be interpreted as to the above-mentioned theme of the present invention is only limitted to example below.The above-mentioned technological thought of the present invention is not being departed from
In the case of, the various replacements or change made according to ordinary skill knowledge and customary means should all be included in the present invention
In the range of.
Description of the drawings
Fig. 1 is a schematic diagram for analysis, it is shown that a transition scheme (hereinafter referred to as " mistake for analysis
Cross scheme "), should " transition scheme " be on the basis of No. 201410509081.8 patent application schemes, into the " recessed of runner
Portion " removes, that is, removes " protrusion part " corresponding in the shape below plastics valve body, in turn ensuring has enough latus rectums into runner
Scheme.The schematic diagram also show the present invention it is targeted its it is still necessary to solve.Wherein：(a) it is front view；(b)
It is the A-A sectional views of (a)；(c) be (a) vertical view；(d) it is that targeted it is still necessary to the structures of improvement part by the present invention in (b)
The region of the convex angled construction of the schematic diagram shown in a manner of protruding, the i.e. arc 91；(e) it is that the present invention in (c) is targeted still
The region of the convex angled construction of the schematic diagram for needing the structure of improvement part to be shown in a manner of protruding, the i.e. arc 91.
Fig. 2 is the schematic diagram of the valve body of plastic cut-off valve structure of injection molding of the present invention.
Fig. 3~Fig. 8 is molded the configuration state schematic diagram of core pulling process for valve body of plastic cut-off valve of the present invention shown in Fig. 2,
In：The A that b in Fig. 3 is a is to structural representation；Fig. 8 is enlarged drawing, and the B-B cross-section structures that b therein is a are illustrated.
Fig. 9~Figure 10 is the structural schematic diagram of another supplement core pulling, wherein：The A that b in Fig. 9 is a is to structural representation；
Figure 10 is enlarged drawing, and the C-C cross-section structures that b therein is a are illustrated.
Figure 11 is the schematic diagram of the valve body of plastic cut-off valve intermediate structure of injection molding of the present invention, shown in the schematic diagram
" plastics valve body " 1 not yet processes " valve seat opening " 6.
Figure 12~Figure 17 is molded the configuration state schematic diagram of core pulling process for valve body of plastic cut-off valve of the present invention shown in Figure 11,
" plastics valve body " 1 shown in the schematic diagram not yet processes " valve seat opening " 6, wherein：The A that b in Figure 12 is a is to structural representation；
Figure 17 is enlarged drawing, and the B-B cross-section structures that b therein is a are illustrated.
Figure 18 is the schematic diagram of the valve body of plastic cut-off valve structure of injection molding of the present invention, " plastics shown in the schematic diagram
On the basis of valve body " 1 is the valve body of plastic cut-off valve intermediate structure shown in Figure 11, added by the further cutting of secondary operation
Work, machine-shaping valve seat opening 6, ultimately forms this schematic diagram on the valve seat 5 that there is no valve seat to be open in 6 " plastics valve body " 1
Shown in " plastics valve body " 1.
Figure 19~Figure 20 is the structural schematic diagram of another supplement core pulling, and " plastics valve body " 1 shown in the schematic diagram is not yet
" valve seat opening " 6 is processed, wherein：The A that b in Figure 19 is a is to structural representation；Figure 20 is enlarged drawing, and b therein is that the C-C of a is cutd open
Face structural representation.
Specific implementation mode
Embodiment 1
As shown in Fig. 2, the valve body of plastic cut-off valve 1 of the injection molding described in the present embodiment is the molding knot of integral molded plastic
Structure.The problem of for waiting to be further improved in above-mentioned " transition scheme " structure shown in FIG. 1, the injection molding described in the present embodiment
Equally there is molding valve body of plastic cut-off valve 1 flow inlet 2, outflow port 3, valve deck connector 4 and valve seat 5, valve seat 5 to have valve seat
Opening 6 has the influent stream served as by the cavity formed from 2 core pulling of flow inlet when injection molding between flow inlet 2 and valve seat opening 6
Road 7；There is the valve served as by the cavity formed from 4 core pulling of valve deck connector when injection molding between valve seat 5 and valve deck connector 4
Intracoelomic cavity 8.Between body cavity 8 and outflow port 3 have by formed from 3 core pulling of outflow port when injection molding cavity 9, by noting
It is moulded into the cavity 10 formed from 81 side core-pulling of madial wall of body cavity outflow port side when type, and by being supplemented when injection molding
What the cavity 25 that core pulling is formed was collectively formed goes out runner 11.Flow inlet 2 is to be arranged along same central axis with outflow port 3, described
The lower plane 61 of valve seat opening 6 is located at direction side of the flow inlet with outflow port central axis to body cavity 8.Flow inlet 2 goes out stream
Mouth 3 and valve deck connector 4 are all the hatch frame of hot melt spigot-and-socket formula respectively.Valve deck connector 4 can also further carry flange
Disk or inner peripheral surface are threaded metal insert structure.
The injection moulding process of " the plastics valve body ", as shown in Fig. 3~8, with institute in No. 201410509081.8 patent applications
State that mode is essentially identical, difference is only that the front end one of the core pulling 14 of outflow port can be with positioning poroid in supplement core pulling 26
Structure 27 is matched to protrude out supplement core pulling 26 (as shown in Figure 8) there are one the settings of supporting structure 141.After die sinking, first respectively with
After the core pulling 12, core pulling 13 and core pulling 14 of injection mold are detached " plastics valve body " 1 by the same manner, inner side core-pulling 15 and supplement are taken out
Core 26 all remains in " plastics valve body " 1.It at this moment, can be by " the plastics valve body " 1 of injection molding together with 15 He of inner side core-pulling
Supplement core pulling 26 is taken out from injection mold together.Then, by after 15 side core-pulling of inner side core-pulling from the valve at the top of body cavity 8
Lid connector 4 takes out, finally again will supplement core pulling 26 also from 8 side core-pulling of body cavity, and from the valve deck at the top of body cavity 8
Connector 4 takes out.After completing aforesaid operations, that is to say, that after injection molding, can by the further machining of secondary operation,
It there is no machine-shaping valve seat opening 6 on the valve seat 5 in " the plastics valve body " 1 of valve seat opening 6.Ultimately form " the modeling of the present embodiment
Expect valve body " 1.
Embodiment 2
As shown in Fig. 9~Figure 10.Difference lies in the supplement structure type of core pulling 26 used is different from upper example：Supplement is taken out
Location structure 27 in core 26 is the slot of T shapes, and this of the front end of the core pulling 14 of outflow port protrudes out supporting structure 141 and also mutually should be
The supporting structure 141 of the T-shaped structure of section, this T-shaped structure is less damaged and durable.Remaining core pulling process and acquired
" plastics valve body " 1 structure it is identical as upper example.
Embodiment 3
The present embodiment is similar to Example 1, except that in the present embodiment injection molding valve body of plastic cut-off valve 1 by
Intermediate structure machining forms.
Figure 11 is the schematic diagram of the valve body of plastic cut-off valve intermediate structure of injection molding of the present invention, shown in the schematic diagram
" plastics valve body " 1 not yet processes " valve seat opening " 6.
The injection moulding process of " the plastics valve body ", similar to mode described in embodiment 1 as shown in Figure 12~17, difference is only
It is after injection molding to be intermediate structure, as shown in figure 11, it is also necessary to by the further machining of secondary operation, in " plastics
Machine-shaping valve seat opening 6, ultimately forms " plastics valve body " 1 as shown in figure 18 on valve seat 5 in valve body " 1.
Valve deck connector 4 described in the present embodiment is hot melt spigot-and-socket formula valve deck connector.
Embodiment 4
As shown in the figures of Figure 19~20.Difference lies in the supplement structure type of core pulling 26 used is different from embodiment 3：It mends
The location structure 27 filled in core pulling 26 is the slot of T shapes, and this of the front end of the core pulling 14 of outflow port protrudes out the also phase of supporting structure 141
The T-shaped structure of section is should be, the supporting structure 141 of this T-shaped structure is less damaged and durable.Remaining core pulling process and institute
Obtained " plastics valve body " 1 intermediate structure is identical as upper example.
Claims (7)
1. the valve body of plastic cut-off valve (1) of injection molding has flow inlet (2), outflow port (3), valve deck connector (4) and valve seat
(5), there is valve seat valve seat to be open (6), have between flow inlet (2) and valve seat opening (6) by being taken out from flow inlet when injection molding
Core formed cavity serve as into runner (7), between valve seat (5) and valve deck connector (4) with by when injection molding from valve deck
The body cavity (8) that the cavity that connector (4) core pulling is formed serves as, has between the body cavity (8) and outflow port (3)
Runner (11), it is described go out runner include cavity (9) by being formed from outflow port (3) core pulling when injection molding and when by injection molding
From madial wall (81) side core-pulling of body cavity (8) outflow port side formed cavity (10), it is characterized in that it is described go out runner also
It include the cavity (25) formed by supplementing core pulling when injection molding.
2. the valve body of plastic cut-off valve of injection molding as described in claim 1, it is characterized in that described by being supplemented when injection molding
The cavity (25) that core pulling is formed is located at by madial wall (81) side core-pulling shape from body cavity (8) outflow port side when injection molding
At cavity (10) and outflow port (3) between, and and by when injection molding from the madial wall of body cavity (8) outflow port side
(81) cavity (10) intersection that side core-pulling is formed is also and cavity (9) phase by being formed from outflow port (3) core pulling when injection molding
It hands over.
3. the valve body of plastic cut-off valve of injection molding as claimed in claim 2, it is characterized in that it is described go out runner in by being molded into
The cavity (25) that core pulling is formed is supplemented when type to be located at by madial wall (81) side from body cavity (8) outflow port side when injection molding
To core pulling formed cavity (10) and by when injection molding between the cavity (9) that outflow port (3) core pulling is formed.
4. the valve body of plastic cut-off valve of injection molding as described in claim 1, it is characterized in that the flow inlet and outflow port
To be arranged along same central axis, the lower plane (61) of valve seat opening (6) is located at flow inlet and outflow port central axis
Body cavity (8) direction side.
5. the valve body of plastic cut-off valve of injection molding as described in claim 1, it is characterized in that the flow inlet and outflow port
Hot melt spigot-and-socket formula, screw connected or flange join type hatch frame can be separately selected as.
6. the valve body of plastic cut-off valve of injection molding as described in claim 1, it is characterized in that the valve deck connector is heat
Molten spigot-and-socket, with ring flange or hatch frame that inner peripheral surface is threaded metal insert.
7. the valve body of plastic cut-off valve of the injection molding as described in one of claim 1 to 6, it is characterized in that the valve body is whole
Body injection molding structure.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510215088.3A CN104791532A (en) | 2015-04-30 | 2015-04-30 | Plastic stop valve body formed in injection molding mode |
| CN2015102150883 | 2015-04-30 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105736791A CN105736791A (en) | 2016-07-06 |
| CN105736791B true CN105736791B (en) | 2018-07-13 |
Family
ID=53556575
Family Applications (4)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510215088.3A Pending CN104791532A (en) | 2015-04-30 | 2015-04-30 | Plastic stop valve body formed in injection molding mode |
| CN201610264256.2A Active CN105736791B (en) | 2015-04-30 | 2016-04-27 | The valve body of plastic cut-off valve of injection molding |
| CN201610264267.0A Active CN105715845B (en) | 2015-04-30 | 2016-04-27 | The valve body of plastic cut-off valve and its manufacturing method of injection molding |
| CN201620358964.8U Withdrawn - After Issue CN205896329U (en) | 2015-04-30 | 2016-04-27 | Injection molded plastic stop valve body |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510215088.3A Pending CN104791532A (en) | 2015-04-30 | 2015-04-30 | Plastic stop valve body formed in injection molding mode |
Family Applications After (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610264267.0A Active CN105715845B (en) | 2015-04-30 | 2016-04-27 | The valve body of plastic cut-off valve and its manufacturing method of injection molding |
| CN201620358964.8U Withdrawn - After Issue CN205896329U (en) | 2015-04-30 | 2016-04-27 | Injection molded plastic stop valve body |
Country Status (1)
| Country | Link |
|---|---|
| CN (4) | CN104791532A (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104791532A (en) * | 2015-04-30 | 2015-07-22 | 罗荣森 | Plastic stop valve body formed in injection molding mode |
| CN111255932A (en) * | 2020-03-04 | 2020-06-09 | 罗荣森 | Plastic stop valve |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4185807A (en) * | 1978-03-20 | 1980-01-29 | Fluoroware, Inc. | Plastic valve |
| CN2680939Y (en) * | 2004-01-19 | 2005-02-23 | 蔡志利 | Plastic stop valve for big flow |
| CN1598370A (en) * | 2004-08-26 | 2005-03-23 | 罗荣森 | Plastic check valve |
| CN1673583A (en) * | 2004-03-26 | 2005-09-28 | 罗荣森 | Method for producing plastic stop valve |
| CN202220895U (en) * | 2011-09-26 | 2012-05-16 | 刘红 | Through type stop valve |
| CN205896329U (en) * | 2015-04-30 | 2017-01-18 | 罗荣森 | Injection molded plastic stop valve body |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4185407A (en) * | 1976-10-01 | 1980-01-29 | Lamb Jack W | Display device |
-
2015
- 2015-04-30 CN CN201510215088.3A patent/CN104791532A/en active Pending
-
2016
- 2016-04-27 CN CN201610264256.2A patent/CN105736791B/en active Active
- 2016-04-27 CN CN201610264267.0A patent/CN105715845B/en active Active
- 2016-04-27 CN CN201620358964.8U patent/CN205896329U/en not_active Withdrawn - After Issue
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4185807A (en) * | 1978-03-20 | 1980-01-29 | Fluoroware, Inc. | Plastic valve |
| CN2680939Y (en) * | 2004-01-19 | 2005-02-23 | 蔡志利 | Plastic stop valve for big flow |
| CN1673583A (en) * | 2004-03-26 | 2005-09-28 | 罗荣森 | Method for producing plastic stop valve |
| CN1598370A (en) * | 2004-08-26 | 2005-03-23 | 罗荣森 | Plastic check valve |
| CN202220895U (en) * | 2011-09-26 | 2012-05-16 | 刘红 | Through type stop valve |
| CN205896329U (en) * | 2015-04-30 | 2017-01-18 | 罗荣森 | Injection molded plastic stop valve body |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105736791A (en) | 2016-07-06 |
| CN105715845A (en) | 2016-06-29 |
| CN205896329U (en) | 2017-01-18 |
| CN105715845B (en) | 2018-08-24 |
| CN104791532A (en) | 2015-07-22 |
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