CN103910317B - A kind of aseptic filling valve - Google Patents

A kind of aseptic filling valve Download PDF

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Publication number
CN103910317B
CN103910317B CN201410078898.4A CN201410078898A CN103910317B CN 103910317 B CN103910317 B CN 103910317B CN 201410078898 A CN201410078898 A CN 201410078898A CN 103910317 B CN103910317 B CN 103910317B
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China
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blocked shot
connection block
seal ring
aseptic filling
valve body
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CN103910317A (en
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史中伟
吉永林
周强华
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Hangzhou Zhongya Machinery Co Ltd
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Hangzhou Zhongya Machinery Co Ltd
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Abstract

The invention discloses a kind of aseptic filling valve, this aseptic filling valve is all arranged in the outside of aseptic area by blocked shot and the connecting portion of double stroke cylinder and the guide frame of blocked shot, is eliminated the finedraw of connecting portion in aseptic area, reaches the object of valve inner without dead angle area.

Description

A kind of aseptic filling valve
Technical field
The present invention relates to a kind of aseptic filling valve.
Background technology
In prior art, the blocked shot of aseptic filling valve inside is enclosed within valve inner by grid and is in vertical location status by righting, or arrange guide vane on blocked shot surface to make himself to be in vertical location status at valve inner, the line of centers of blocked shot overlaps with the line of centers of valve body.Grid no matter is adopted to overlap or guide vane structure, capital makes valve inner surface form recessed joint or finedraw, these recessed joints or finedraw produce the dead angle area being unfavorable for cleaning in aseptic filling valve cleaning process, cause the sordid problem of cleaning, directly affect the product design that sterile filling produces gained.The reason that recessed joint or finedraw cause is that the spacing of two adjacent surfaces is near and angle is less acute angle.Causing the major cause of this fault of construction to be in usual design, valve body is directly used in connects relevant with aseptic filling valve switching power unit, blocked shot is directly connected, limited space between valve body and switching power unit with Power output position.Such as publication number disclosed in 5 days September in 2012 is disclose a kind of aseptic filling valve in the Chinese patent of CN101590993B, this aseptic filling valve comprises valve body and the valve rod with spool, it is provided with the lever of band ovable valve stem lifting, the side of described valve body has lever and stretches into mouth, described lever stretches into valve body from valve body side, described aseptic filling valve is also provided with the flexible partition be enclosed within lever, and described flexible partition and lever are sealed and matched and closure lever stretches into the valve body at place.Valve rod is blocked shot, and its surface is provided with guide vane, and valve rod keeps the distance between valve body by guide vane.Free-running fit between guide vane and valve body, therefore there is finedraw at valve inner towards between the surface and guide vane of guide vane position, affect by guide vane working accuracy and setting accuracy, finedraw skewness, and then cause the connection tightness degree between guide vane from valve body different.Once liquid enters finedraw, then cannot be flowed by adsorbing, so in cleaning process, the dead angle area be difficult to finedraw place is formed effectively cleans.Lever, as power transmission member, must be connected between it with blocked shot, connects the tolerance clearance caused and also can form dead angle area, and then be unfavorable for the cleaning operation of aseptic area.
Summary of the invention
The technical problem to be solved in the present invention is the problem of valve inner dead angle area, provides the aseptic filling valve that a kind of valve inner is bright and clean, smooth.
Another technical purpose of the present invention is the place be placed in by the connection location of blocked shot and other power transmission member beyond aseptic area, eliminates tolerance clearance between blocked shot and other power transmission member to the adverse effect of aseptic area.
For solving the problems of the technologies described above, the present invention adopts following technical scheme: this aseptic filling valve comprises valve body, blocked shot, Connection Block, adapter sleeve, double stroke cylinder, the cylinder body of described double stroke cylinder is fixedly connected with one end of adapter sleeve, the other end of described adapter sleeve is connected with one end liquid sealing of Connection Block, one end of described Connection Block is connected with one end liquid sealing of valve body, described blocked shot is positioned at valve body, Connection Block, in adapter sleeve, the piston rod of described double stroke cylinder is positioned at adapter sleeve and is fixedly connected with one end of blocked shot, described blocked shot is connected by sealing shroud liquid sealing with between adapter sleeve, the described blocked shot other end is provided with sealing surface I, described valve interior surface is provided with sealing surface II, described blocked shot is only connected with valve body in sealing surface I position and is only connected with sealing surface II liquid sealing, described Connection Block side is provided with inlet point, also corrugated diaphragm is provided with between described blocked shot and Connection Block, described corrugated diaphragm is connected with liquid sealing between blocked shot, described corrugated diaphragm is connected with liquid sealing between Connection Block, described inlet point is communicated with valve inner, described adapter sleeve is inner to be completely cut off with valve inner.
Adapter sleeve, Connection Block, valve body link together, and three is in the same center line.Adapter sleeve is connected with blocked shot liquid sealing by sealing shroud, sealing shroud not only plays sealing function, also play directional tagging, make sealing shroud maintain blocked shot in valve body, be in vertical location status, the line of centers of line of centers and blocked shot that this vertical location status is valve body overlaps.Aseptic area and the non sterile area of valve inner are isolated by corrugated diaphragm.Only playing the location contacts of on-off action between blocked shot and valve body, between other position, be in the position relationship of separation, making the inside face of blocked shot surface and valve body bright and clean and smooth, there is no the structure of recessed joint and finedraw.Corrugated diaphragm is kind of the parts being easy to cleaning and surface energy maintenance germ-free condition, and its relative aseptic area serves buffer action; Corrugated diaphragm is provided with level and smooth fold, and the bearing of trend along its line of centers during blocked shot work does straight reciprocating motion, and corrugated diaphragm can be complied with blocked shot action and be in expansion or contraction state.The effect of Connection Block is not only to connect valve body and adapter sleeve, is also introduced in valve body by material conveying passage by three-port structure.The piston rod of blocked shot and double stroke cylinder forms annexation in adapter sleeve, therefore, the connection location of blocked shot and power transmission member is positioned at outside aseptic area, certainly will improve the cleaning performance of valve inner like this, has vital function to maintenance valve inner germ-free condition.
The mode of operation of blocked shot is linear reciprocating motion, and the structure of corrugated diaphragm is applicable to this mode of motion of blocked shot.Blocked shot is column structure, if blocked shot generation rotation in working process, can drive corrugated diaphragm, corrugated diaphragm is twisted, and corrugated diaphragm is impaired thus.In order to prevent blocked shot rotation in the course of the work, restriction blocked shot only does linear reciprocating motion axially, as preferably of the present invention, the piston rod of described double stroke cylinder is fixedly connected with by anti-rotation assembly with between blocked shot, described anti-rotation assembly comprises contiguous block, orienting lug, described contiguous block is provided with the mounting groove I that cross-sectional plane is T-shaped, the cross-sectional plane of described blocked shot one end is T-shaped, described blocked shot is embedded in mounting groove I by this end that cross-sectional plane is T-shaped and is connected with contiguous block, described orienting lug is fixedly connected on contiguous block, described contiguous block is fixedly connected with the piston rod of double stroke cylinder, described adapter sleeve is provided with two parallel confined planes, the line of centers bearing of trend of described blocked shot is parallel to confined planes, described orienting lug between two confined planes and with confined planes free-running fit.By the connection mode of T-shaped structure between contiguous block and blocked shot, also free-running fit between the two, makes contiguous block be connected as a single entity with blocked shot on the direction of the line of centers around blocked shot; Orienting lug and contiguous block are also connected as a single entity, between the confined planes that orienting lug provides at adapter sleeve, motion, blocked shot are again by the guiding restriction of sealing shroud, therefore make contiguous block can only at the bearing of trend of blocked shot line of centers or the square upward movement of bearing of trend being parallel to blocked shot line of centers.
Anti-rotation assembly plays the effect connecting piston rod and blocked shot, impels blocked shot only to perform linear reciprocating motion under the guiding restriction of the confined planes of adapter sleeve simultaneously.
Double stroke cylinder provides thrust and pulling force, and in order to keep the high pass efficiency of power, reduce the wearing and tearing of power transmission member, as preferably of the present invention, the line of centers of described piston rod overlaps with the line of centers of blocked shot.The axis of piston rod overlaps with the axis of blocked shot, and the transmission of power between two parts like this is apart from short, and the connection structure simplicity of design for power transmission member is between the two convenient.Under the simple prerequisite of power transmission member structure, be easy to additional realize other function and the design made, therefore, this structure also plays the effect be convenient to blocked shot and be controlled by other parts, such as, implement the function preventing blocked shot rotation.
The uniformity of hardness of seal ring is the important indicator of leakproofing material, by the impact that the hardness at each position of seal ring is inconsistent, seal ring in use can be formed and connect the little region of tight ness rating between sealing surface, very easily occur finedraw in these regions, this can form dead angle area in the cleaning process of valve body.In order to overcome the uneven finedraw problem caused of seal ring hardness, as preferably of the present invention, the seal ring I that cross-sectional plane is rectangle is provided with between described corrugated diaphragm and Connection Block, described Connection Block inside is provided with the bearing surface of the construction profile into round platform, described bearing surface bearing of trend tilts crossing with the line of centers bearing of trend of Connection Block, described seal ring I 1 bottom surface is connected with corrugated diaphragm, another bottom surface is connected with bearing surface, and described seal ring I deformation is protruded at Connection Block inside face.By this technical scheme, the shape of seal ring I bottom surface is different from sealing surface and bearing surface shape, the bottom surface of seal ring I is ring surface structure, bearing surface is the construction profile of round platform, the crushing strength that seal ring I is subject at the position forming sealing surface increases, and makes the connection tight ness rating between seal ring I and Connection Block and the connection tight ness rating between seal ring I and corrugated diaphragm all reach the requirement of liquid sealing to greatest extent.
Seal ring I installs rear protrusion at Connection Block inside face, angle between seal ring I 1 bottom surface and Connection Block surface is greater than 90 degree, angle between seal ring I another bottom surface and surface of corrugated diaphragm is greater than 90 degree, therefore seal ring I and Connection Block, all can not produce finedraw between corrugated diaphragm.
The inclined bottom surface of bearing surface opposing seal circle I, can move to the position deformation that pressure is little when seal ring I is squeezed, for this reason, Connection Block inside is provided with the blocking surface of cylindrical surface structure, the bearing of trend of described blocking surface is parallel to the line of centers bearing of trend of Connection Block, described blocking surface tilts crossing with bearing surface, and described blocking surface is connected with the side of seal ring I.Connection Block is at the V-shaped opening of the cross-sectional plane being positioned at bearing surface and blocking surface position.By the restriction of bearing surface and blocking surface, the installation site of seal ring I is fixed, and can move when preventing seal ring I to be squeezed to the position deformation that pressure is little.
Corrugated diaphragm is wrapped in blocked shot outside, and compact siro spinning technology form the annexation of liquid sealing between blocked shot.Blocked shot is stepped shaft structure at the position of connection corrugated diaphragm, makes corrugated diaphragm surface form the level and smooth structure linked up with blocked shot surface, but still there is finedraw between blocked shot and corrugated diaphragm on the line of centers bearing of trend of blocked shot.In valve body cleaning process, dead angle area is formed in order to prevent the finedraw between corrugated diaphragm and blocked shot, as preferably of the present invention, it is circular seal ring II that the line of centers bearing of trend of blocked shot is provided with between described corrugated diaphragm and blocked shot cross-sectional plane, described blocked shot is provided with mounting groove II, described seal ring II is embedded in mounting groove II, and the surface on blocked shot surface and corrugated diaphragm is protruded in described seal ring II deformation.Protrude after seal ring II crimp, angle between the surface of seal ring II protruding parts and the surface of corrugated diaphragm is greater than 90 degree, angle between the surface of seal ring II protruding parts and the surface of blocked shot is greater than 90 degree, therefore seal ring II and corrugated diaphragm, all can not produce finedraw between blocked shot.Be subject to shearing force after preventing seal ring II to be squeezed, mounting groove II surface and edge all do round and smooth design, and blocked shot is S shape at the edge of the cross-sectional plane at mounting groove II place, and the maximum groove depth of described mounting groove II is less than the diameter of seal ring II.
For preventing Connection Block inside face and valve interior surface from producing finedraw at joining place, described Connection Block is connected by seal ring III with between valve body, and described seal ring III deformation is protruded at Connection Block inside face and valve interior surface.So, the angle between a bottom surface of seal ring III and Connection Block inside face is greater than 90 degree, the angle between another bottom surface and valve interior surface of seal ring III is greater than 90 degree, therefore seal ring III and Connection Block, all can not produce finedraw between valve body.
In this aseptic filling valve working process and cleaning process, material all enters in valve body from the inlet point of Connection Block, for improving the material fluidity at corrugated diaphragm fold position, as preferably of the present invention, described inlet point is just to corrugated diaphragm, material flows to corrugated diaphragm in impact mode, thus improves the crossing ability of material at the fold place of corrugated diaphragm.Material can be the product of required fill operations, also can be the purging medium for cleaning.When being so also more conducive to clean, purging medium thoroughly cleans corrugated diaphragm, reaches the object that corrugated diaphragm is easy to clean up.
Under corrugated diaphragm normal operating condition, corrugated diaphragm exterior lateral area and aseptic area are isolated with corrugated diaphragm inside region and the space between corrugated diaphragm and blocked shot.When occurring damaged in corrugated diaphragm use procedure, the interior exterior domain of corrugated diaphragm can be communicated with, and so now aseptic filling valve is in faulty condition.Appear in time in order to the faulty condition of aseptic filling valve can be made or express, to play warning function, as preferably of the present invention, described sealing shroud is provided with flow-guiding channel, described Connection Block is provided with overflow through hole, space inside described corrugated diaphragm and between blocked shot is communicated with flow-guiding channel, and described flow-guiding channel is communicated with overflow through hole.Material can infiltrate corrugated diaphragm inside region when corrugated diaphragm damages, material flows out aseptic filling valve through flow-guiding channel from overflow through hole again, in attended operation, play obvious warning function successively, be convenient to the faulty condition of service personnel Timeliness coverage aseptic filling valve.
Material is controlled by the coupled condition between blocked shot and valve body after entering valve body, sealing surface I is connected rear material not by valve body with sealing surface II, sealing surface I be separated with sealing surface II rear material from valve body to outer outflow.The flowing limited amount separating distance in sealing surface I and sealing surface II between of material within the unit time, when the spacing of sealing surface I and sealing surface II is near, mass flow is little, between sealing surface I and sealing surface II, during distance, mass flow is large.For realizing flow control, as preferably of the present invention, described double stroke cylinder for two go out bar type structure, the cylinder body of described double stroke cylinder is provided with spacing assembly, described spacing assembly comprises spacer sleeve, spacing nut, described spacer sleeve is fixed on the cylinder body of double stroke cylinder, and another piston rod of described double stroke cylinder passes spacer sleeve and is fixedly connected with spacing nut, and described spacer sleeve is positioned in the path of motion of spacing nut.The forced stroke of double stroke cylinder includes the first stroke and the second stroke, first stroke as opening travel, the second stroke as range, spacing assembly can only limit the opening travel of double stroke cylinder, with this control blocked shot be separated with valve body relative to the minimum opening degree of valve body and blocked shot after minor increment.
The present invention adopts technique scheme: this aseptic filling valve is all arranged in the outside of aseptic area by blocked shot and the connecting portion of double stroke cylinder and the guide frame of blocked shot, is eliminated the finedraw of connecting portion in aseptic area, reaches the object of valve inner without dead angle area.
Accompanying drawing explanation
Below in conjunction with the drawings and specific embodiments, the present invention is further described in detail.
Fig. 1 is the structural representation of a kind of aseptic filling valve of the present invention;
Fig. 2 is the contiguous block of a kind of aseptic filling valve of the present invention and the scheme of installation of blocked shot;
Fig. 3 is the structural representation of the anti-rotation assembly of a kind of aseptic filling valve of the present invention;
Fig. 4 is the structural representation of the adapter sleeve of a kind of aseptic filling valve of the present invention;
Fig. 5 is the cutaway view of Fig. 4 at A-A place;
Fig. 6 is the partial enlarged drawing of Fig. 1 at A place;
Fig. 7 is the partial enlarged drawing of Fig. 1 at B place;
Fig. 8 is the partial enlarged drawing of Fig. 1 at C place;
Fig. 9 is the partial enlarged drawing of Fig. 1 at D place.
Detailed description of the invention
As shown in Figure 1, aseptic filling valve comprises double stroke cylinder 1, adapter sleeve 2, Connection Block 3, valve body 4, blocked shot 5, corrugated diaphragm 6, anti-rotation assembly, spacing assembly, and adapter sleeve 2, Connection Block 3, valve body 4 are all the structure of hollow.
Double stroke cylinder 1 for two go out bar type structure, protrude at the two ends of cylinder body at the piston rod of double stroke cylinder 1, one of them piston rod is used for providing power, and this double stroke cylinder 1 has two strokes.The cylinder body of double stroke cylinder 1 is fixedly connected with by clip with adapter sleeve 2, and the piston rod of cylinder body one end stretches at adapter sleeve 2 inner; Spacing assembly is arranged on cylinder body, and spacing assembly comprises spacer sleeve 7, spacing nut 8, and spacer sleeve 7 is fixed by screws on cylinder body, and the piston rod of the cylinder body other end is fixed on this piston rod through spacer sleeve 7, spacing nut 8.Spacing nut 8 is with the piston rod movement of double stroke cylinder 1, and spacer sleeve 7 is positioned in the path of motion of spacing nut 8, when spacing nut 8 away from spacing nut 8 during cylinder body away from spacer sleeve 7, otherwise, spacing nut 8 when cylinder body spacing nut 8 near spacer sleeve 7; Therefore, spacing nut 8 follows the stop being finally subject to spacer sleeve 7 when piston rod does the motion of close cylinder body, makes the position limitation of spacing nut 8 in the side of spacer sleeve 7; By arranging the position of spacer sleeve 7 on cylinder body, the movement position of spacing nut 8 can be limited.Spacing nut 8 and piston rod link together, and spacing nut 8 makes one of them stroke of double stroke cylinder 1 be defined to the stroke limiting of spacer sleeve 7.
Be fixedly connected with by clip between adapter sleeve 2 with Connection Block 3.Connection Block 3 is fixedly connected with by screw with valve body 4.Blocked shot 5 is positioned at valve body 4, Connection Block 3, adapter sleeve 2.Blocked shot 5 is direct rod shape structure.
Blocked shot 5 stretches in adapter sleeve 2.Blocked shot 5 this end stretched in adapter sleeve 2 is cylindrical-shaped structure, and this end of blocked shot 5 is connected by anti-rotation assembly with between the piston rod stretched in adapter sleeve 2.As shown in Fig. 1,2,3,4,5,6, anti-rotation assembly comprises contiguous block 9, orienting lug 10.Contiguous block 9 is provided with the mounting groove I 11 that cross-sectional plane is T-shaped, and mounting groove I 11 is through structure, both ends open.This end that blocked shot 5 is positioned at adapter sleeve 2 is column structure, and its both sides in relative centre line symmetry, by cutting formation two breach, make the cross-sectional plane of one end of blocked shot 5 its line of centers parallel T-shaped; Blocked shot 5 is embedded in mounting groove I 11 by this end that cross-sectional plane is T-shaped and is connected with contiguous block 9.Contiguous block 9 is fixedly connected with by screw thread with the piston rod stretched in adapter sleeve 2, and the line of centers of blocked shot 5 and piston rod overlaps.Orienting lug 10 is fixedly connected on contiguous block 9 by screw, two parallel confined planes 12 are provided with in adapter sleeve 2, the line of centers bearing of trend of blocked shot 5 is parallel to confined planes 12, orienting lug 10 between two confined planes 12 and with confined planes 12 free-running fit, make orienting lug 10 follow contiguous block 9 and can only do straight-line motion in adapter sleeve 2 inside.Double stroke cylinder 1 stretches into piston rod in adapter sleeve 2 for providing power, piston rod is connected with blocked shot 5 by anti-rotation assembly, reach the object stoping blocked shot 5 rotation, simultaneously anti-rotation assembly as power transmission member by the transmission of power of double stroke cylinder 1 to blocked shot 5, drive blocked shot 5 do straight reciprocating motion.After the piston rod of double stroke cylinder 1 pulls or promotes anti-rotation assembly, blocked shot 5 is taken advantage of a situation motion, keeps synchronous all the time with this piston rod.Be connected by sealing shroud 13 liquid sealing between blocked shot 5 with adapter sleeve 2.Sealing shroud 13 provide not only liquid sealing function, also plays righting-oriented effect to blocked shot 5, and make blocked shot 5 be in vertical state in valve body 4 inside, the line of centers of such blocked shot 5 overlaps with the line of centers of valve body 4.Blocked shot 5 surface energy is separated completely with valve body 4 inside face.
As shown in Figure 1, corrugated diaphragm 6 is provided with between blocked shot 5 and Connection Block 3.Corrugated diaphragm 6 is shape structure, and surface is fold part, and its one end is fixedly mounted on Connection Block 3, the other end is connected on blocked shot 5 in liquid sealing mode.As shown in Figure 8, blocked shot 5 is provided with the position of stepped shaft structure, and corrugated diaphragm 6 is wrapped in the little position of the radius at this position, and the end face of corrugated diaphragm 6 is relative with the end face formed by the position that radius is large at position.Blocked shot 5 is at this stepped shaft position, the annular mounting groove II 14 near end face is provided with by the position that radius is large at position, blocked shot 5 is S shape at the edge of the cross-sectional plane at mounting groove II 14 place, mounting groove II 14 has been embedded in seal ring II 15, the cross-sectional plane of seal ring II 15 is circular, and on blocked shot 5 line of centers bearing of trend, the maximum groove depth of mounting groove II 14 is less than the diameter of seal ring II 15.After installing, seal ring II 15 is subject to both clamping action on blocked shot 5 line of centers bearing of trend between corrugated diaphragm 6 and blocked shot 5, impel seal ring II 15 deformation and protrude to stressed little direction, the surface on blocked shot 5 surface and corrugated diaphragm 6 is protruded in seal ring II 15 deformation thus.Angle between the surface of seal ring II 15 protruding parts and the surface of corrugated diaphragm 6 is greater than 90 degree, angle between the surface of seal ring II 15 protruding parts and the surface of blocked shot 5 is greater than 90 degree, therefore seal ring II 15 and corrugated diaphragm 6, all can not produce finedraw between blocked shot 5.When blocked shot 5 does straight reciprocating motion, move with blocked shot 5 in one end of corrugated diaphragm 6, and corrugated diaphragm 6 is taken advantage of a situation and is in expansion or contraction state.
As shown in Figure 7, Connection Block 3 inside is provided with the annular protrusion position for being connected with corrugated diaphragm 6, and be provided with circular groove at this position of annular protrusion, circular groove only has bottom surface and side, this bottom surface is the bearing surface 16 of the construction profile of round platform, and this side is the blocking surface 17 of cylindrical surface structure.Bearing surface 16 bearing of trend tilts crossing with the line of centers bearing of trend of Connection Block 3.One end of corrugated diaphragm 6 is provided with flange position, and this end that corrugated diaphragm 6 is being provided with flange position is connected with Connection Block 3 liquid sealing by seal ring I 18, and the cross-sectional plane of seal ring I 18 is rectangle.Concrete, it is inner that sealing shroud 13 extends to Connection Block 3, sealing shroud 13 is connected cover 2 and pushes up to Connection Block 3 position, sealing shroud 13 one end is caused to withstand the flange position of corrugated diaphragm 6, seal ring I 18 is withstood at the flange position of bellows-sheathed, and seal ring I 18 is tightly pressed on this bearing surface 16.The bearing of trend of blocking surface 17 is parallel to the line of centers bearing of trend of Connection Block 3, and blocking surface 17 tilts crossing with bearing surface 16.A bottom surface of seal ring I 18 is connected with corrugated diaphragm 6, another bottom surface is connected with bearing surface 16, and the side of seal ring I 18 is connected with blocking surface 17, and seal ring I 18 is limited between Connection Block 3 and corrugated diaphragm 6.Connection Block 3 at the edge of the cross-sectional plane at circular groove place be not the cross-sectional plane of seal ring I 18 edge coincide, both profiles are different, Connection Block 3 presents hook-shaped at the edge of the cross-sectional plane at circular groove place, the edge of the cross-sectional plane of seal ring I 18 presents square edge shape, the crushing strength of installing 16 pairs of seal ring I 18 parts in rear support face is greater than the crushing strength at bearing surface 16 pairs of other positions of seal ring I 18, seal ring I 18 crimp and give prominence at Connection Block 3 inside face, angle between seal ring I 18 1 bottom surface and Connection Block 3 surface is greater than 90 degree, angle between another bottom surface of seal ring I 18 and the surface of corrugated diaphragm 6 is greater than 90 degree, therefore seal ring I 18 and Connection Block 3, all finedraw can not be produced between corrugated diaphragm 6.
As shown in Figure 8, be connected between Connection Block 3 with valve body 4 by seal ring III 22 liquid sealing, seal ring III 22 deformation is protruded at Connection Block 3 inside face and valve body 4 inside face.So, angle between a bottom surface of seal ring III 22 and Connection Block 3 inside face is greater than 90 degree, angle between another bottom surface of seal ring III 22 and valve body 4 inside face is greater than 90 degree, therefore seal ring III 22 and Connection Block 3, all can not produce finedraw between valve body 4.As shown in Figure 1, Connection Block 3 is provided with inlet point 19, line of centers bearing of trend upper feeding mouth 19 position of blocked shot 5 and corrugated diaphragm 6 position arranged side by side; Inlet point 19 is the tubulose position on Connection Block 3, and its line of centers bearing of trend is through corrugated diaphragm 6 position, and inlet point 19 is just to corrugated diaphragm 6.
As shown in Figure 9, one end of blocked shot 5 is provided with sealing surface I 20, and this end that blocked shot 5 is provided with sealing surface I 20 is positioned at valve body 4; Valve body 4 inside face is provided with sealing surface II 21.Under aseptic filling valve initial condition, double stroke cylinder 1 stretches out completely, and blocked shot 5 and valve body 4 only link together at the position being provided with sealing surface separately, and namely between sealing surface I 20 with sealing surface II 21, liquid sealing is connected; Other position of blocked shot 5 does not contact with valve body 4.In the case, the space of the space of valve body 4 inside, Connection Block 3 inside and space outerpace isolate and form aseptic area by corrugated diaphragm 6, pipeline communication, aseptic area and the pipeline communication of inlet point 19 and convey materials.Aseptic filling valve is in container during filling material, double stroke cylinder 1 opens the first stroke, blocked shot 5 is pulled, blocked shot 5 and valve body 4 depart from, be separated between sealing surface I 20 with sealing surface II 21 but apart from less, open the second stroke again to be poured into after material, make the distance between sealing surface I 20 and sealing surface II 21 be in maximum rating, filling complete after double stroke cylinder 1 counter motion, blocked shot 5 is pushed and pushes up to valve body 4.First stroke of double stroke cylinder 1 as opening travel, the second stroke as range, spacing assembly can only limit the opening travel of double stroke cylinder 1, with this control blocked shot 5 relatively the minimum opening degree of valve body 4 and blocked shot 5 be separated with valve body 4 after minor increment.
Corrugated diaphragm 6 having during damage to cause aseptic area to be communicated with corrugated diaphragm 6 inside region, and then material can be contaminated.In order to the damaged condition of energy Timeliness coverage corrugated diaphragm 6, the structure served as warning is provided with between Connection Block 3 and sealing shroud 13, as shown in Figure 7, namely sealing shroud is provided with flow-guiding channel 23, Connection Block is provided with overflow through hole 24, space inside corrugated diaphragm and between blocked shot is communicated with flow-guiding channel 23, and flow-guiding channel 23 is communicated with overflow through hole 24.Flow-guiding channel 23 comprises three parts, a part is circular groove in sealing shroud 13 inside, a part is circular groove in sealing shroud 13 outside, a part is one section of straight channels on sealing shroud 13 between two circular grooves, and two circular grooves are communicated with by this section of straight channels.The circular groove being positioned at sealing shroud 13 outside after installation is in relative position relationship with overflow through hole 24, and the width of circular groove is greater than the diameter of overflow through hole 24, thus makes flow-guiding channel 23 be communicated with overflow through hole 24.Once streams enters non sterile area through corrugated diaphragm 6 can flow to overflow through hole 24 position by flow-guiding channel 23, final material flows out from through hole, points out aseptic filling valve to be in faulty condition with this.

Claims (11)

1. an aseptic filling valve, it is characterized in that: this aseptic filling valve comprises valve body (4), blocked shot (5), Connection Block (3), adapter sleeve (2), double stroke cylinder (1), the cylinder body of described double stroke cylinder (1) is fixedly connected with one end of adapter sleeve (2), the other end of described adapter sleeve (2) is connected with one end liquid sealing of Connection Block (3), one end of described Connection Block (3) is connected with one end liquid sealing of valve body (4), described blocked shot (5) is positioned at valve body (4), Connection Block (3), in adapter sleeve (2), the piston rod of described double stroke cylinder (1) is positioned at adapter sleeve (2) and is fixedly connected with one end of blocked shot (5), be connected by sealing shroud (13) liquid sealing between described blocked shot (5) with adapter sleeve (2), described blocked shot (5) other end is provided with sealing surface I (20), described valve body (4) inside face is provided with sealing surface II (21), described blocked shot (5) is only connected with valve body (4) in sealing surface I (20) position and is only connected with sealing surface II (21) liquid sealing, described Connection Block (3) side is provided with inlet point (19), corrugated diaphragm (6) is also provided with between described blocked shot (5) and Connection Block (3), between described corrugated diaphragm (6) with blocked shot (5), liquid sealing is connected, between described corrugated diaphragm (6) with Connection Block (3), liquid sealing is connected, described inlet point (19) is communicated with valve body (4) inside, described adapter sleeve (2) is inner isolated with valve body (4) inside.
2. aseptic filling valve according to claim 1, it is characterized in that: the piston rod of described double stroke cylinder (1) is fixedly connected with by anti-rotation assembly with between blocked shot (5), described anti-rotation assembly comprises contiguous block (9), orienting lug (10), described contiguous block (9) is provided with the mounting groove I (11) that cross-sectional plane is T-shaped, the cross-sectional plane of described blocked shot (5) one end is T-shaped, described blocked shot (5) is embedded in mounting groove I (11) by this end that cross-sectional plane is T-shaped and is connected with contiguous block (9), described orienting lug (10) is fixedly connected on contiguous block (9), described contiguous block (9) is fixedly connected with the piston rod of double stroke cylinder (1), described adapter sleeve (2) is provided with two parallel confined planes (12), the line of centers bearing of trend of described blocked shot (5) is parallel to confined planes (12), described orienting lug (10) to be positioned between two confined planes (12) and with confined planes (12) free-running fit.
3. aseptic filling valve according to claim 1, is characterized in that: the line of centers of described piston rod overlaps with the line of centers of blocked shot (5).
4. aseptic filling valve according to claim 1, it is characterized in that: between described corrugated diaphragm (6) and Connection Block (3), be provided with the seal ring I (18) that cross-sectional plane is rectangle, described Connection Block (3) inside is provided with the bearing surface (16) of the construction profile into round platform, described bearing surface (16) bearing of trend tilts crossing with the line of centers bearing of trend of Connection Block (3), described seal ring I (18) bottom surface is connected with corrugated diaphragm (6), another bottom surface is connected with bearing surface (16), described seal ring I (18) deformation is protruded at Connection Block (3) inside face.
5. aseptic filling valve according to claim 4, it is characterized in that: described Connection Block (3) inside is provided with the blocking surface (17) of cylindrical surface structure, the bearing of trend of described blocking surface (17) is parallel to the line of centers bearing of trend of Connection Block (3), described blocking surface (17) tilts crossing with bearing surface (16), and described blocking surface (17) is connected with the side of seal ring I (18).
6. aseptic filling valve according to claim 1, it is characterized in that: on the line of centers bearing of trend of blocked shot (5), be provided with cross-sectional plane between described corrugated diaphragm (6) and blocked shot (5) is circular seal ring II (15), described blocked shot (5) is provided with mounting groove II (14), described seal ring II (15) is embedded in mounting groove II (14), and the surface on blocked shot (5) surface and corrugated diaphragm (6) is protruded in described seal ring II (15) deformation.
7. aseptic filling valve according to claim 6, it is characterized in that: described blocked shot (5) is S shape at the edge of the cross-sectional plane at mounting groove II (14) place, the maximum groove depth of described mounting groove II (14) is less than the diameter of seal ring II (15).
8. aseptic filling valve according to claim 1, it is characterized in that: be connected by seal ring III (22) between described Connection Block (3) with valve body (4), described seal ring III (22) deformation is protruded at Connection Block (3) inside face and valve body (4) inside face.
9. aseptic filling valve according to claim 1, is characterized in that: described inlet point (19) is just to corrugated diaphragm (6).
10. aseptic filling valve according to claim 1, it is characterized in that: described sealing shroud (13) is provided with flow-guiding channel (23), described Connection Block (3) is provided with overflow through hole (24), space between described corrugated diaphragm (6) inner side and blocked shot (5) is communicated with flow-guiding channel (23), and described flow-guiding channel (23) is communicated with overflow through hole (24).
11. aseptic filling valves according to claim 1, it is characterized in that: described double stroke cylinder (1) for two go out bar type structure, the cylinder body of described double stroke cylinder (1) is provided with spacing assembly, described spacing assembly comprises spacer sleeve (7), spacing nut (8), described spacer sleeve (7) is fixed on the cylinder body of double stroke cylinder (1), another piston rod of described double stroke cylinder (1) passes spacer sleeve (7) and is fixedly connected with spacing nut (8), described spacer sleeve (7) is positioned in the path of motion of spacing nut (8).
CN201410078898.4A 2014-03-05 2014-03-05 A kind of aseptic filling valve Active CN103910317B (en)

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CN106082085A (en) * 2016-08-18 2016-11-09 上海维托机械设备有限公司 A kind of drip-proof filling valve

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JP3449903B2 (en) * 1997-11-05 2003-09-22 東洋製罐株式会社 Aseptic filling valve
ATE314304T1 (en) * 2001-11-09 2006-01-15 Sig Simonazzi Spa FILLING VALVE FOR FILLING MACHINE
JP5038265B2 (en) * 2008-08-29 2012-10-03 三菱重工食品包装機械株式会社 Filling valve
CN201293124Y (en) * 2008-10-27 2009-08-19 江苏星A包装机械集团有限公司 Combination air-operated valve for sterilized filling machine
CN101590993B (en) * 2009-03-16 2012-09-05 杭州中亚机械股份有限公司 Aseptic filling valve
CN203199981U (en) * 2013-02-25 2013-09-18 南京保立隆包装机械有限公司 Sterile cold filling valve
CN203767983U (en) * 2014-03-05 2014-08-13 杭州中亚机械股份有限公司 Aseptic filling valve

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