CN202219865U - Self negative suction anti-dropwise-leakage filling valve - Google Patents

Self negative suction anti-dropwise-leakage filling valve Download PDF

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Publication number
CN202219865U
CN202219865U CN 201120303422 CN201120303422U CN202219865U CN 202219865 U CN202219865 U CN 202219865U CN 201120303422 CN201120303422 CN 201120303422 CN 201120303422 U CN201120303422 U CN 201120303422U CN 202219865 U CN202219865 U CN 202219865U
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CN
China
Prior art keywords
valve
spool
piston
core
valve rod
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Withdrawn - After Issue
Application number
CN 201120303422
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Chinese (zh)
Inventor
苏武会
石卓栋
徐志刚
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
BEIJING SPACE STAR TECHNOLOGY EQUIPMENT Co
TIANJIN AEROSPACE STAR NEW TECHNOLOGY EQUIPMENT CO LTD
China Academy of Launch Vehicle Technology CALT
Beijing Institute of Structure and Environment Engineering
Original Assignee
BEIJING SPACE STAR TECHNOLOGY EQUIPMENT Co
TIANJIN AEROSPACE STAR NEW TECHNOLOGY EQUIPMENT CO LTD
China Academy of Launch Vehicle Technology CALT
Beijing Institute of Structure and Environment Engineering
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Application filed by BEIJING SPACE STAR TECHNOLOGY EQUIPMENT Co, TIANJIN AEROSPACE STAR NEW TECHNOLOGY EQUIPMENT CO LTD, China Academy of Launch Vehicle Technology CALT, Beijing Institute of Structure and Environment Engineering filed Critical BEIJING SPACE STAR TECHNOLOGY EQUIPMENT Co
Priority to CN 201120303422 priority Critical patent/CN202219865U/en
Application granted granted Critical
Publication of CN202219865U publication Critical patent/CN202219865U/en
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Withdrawn - After Issue legal-status Critical Current

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Abstract

The utility model relates to a liquid filling machine which belongs to the field of packaging equipment, and particularly to a self negative suction anti-dropwise-leakage filling valve. The self negative suction anti-dropwise-leakage filling valve comprises the following components: a valve body, and a valve port which is hermetically connected with the lower end of the valve body. An upper end of the valve body is provided with a material inlet. The central position of a material chamber which is surrounded by the valve body and the valve opening is provided with a valve rod and a valve core. The upper end of the valve rod passes through the upper part of the valve body, and the lower end is hermetically and slidably connected with the valve core. The lower end of the valve core is jointed with the valve opening. The valve rod is connected with the valve core through a sealing ring. The lower end of the valve rod is provided with a piston. A spring is provided between the piston and the lower end face of the inside part of the valve core. The valve core is internally provided with an in-core guiding column which is hermetically connected with the inside part of the piston. A negative suction chamber A is formed between the sealing ring and the piston. A transition chamber B is formed between the piston and the in-core guiding column. The lower end of the valve rod, the lower end of the valve core and the center are respectively provided with a hole which is communicated with the inner chamber of the piston. The lower part of the valve core is provided with a hole which is communicated with the material chamber. The valve rod is provided with a hole for communicating the negative suction chamber A with the inner chamber of the piston.

Description

Think highly of oneself and inhale antidrip formula filling valve
Technical field
The present invention relates to liquid-filling machine, belong to packaging facilities, be specifically related to a kind of conceited suction antidrip formula filling valve.
Background technology
The form of liquid-filling machine is varied, and in the liquid-filling machine field, one of critical component of decision bottle placer technical merit is exactly a filling valve, and the structure of filling valve has directly determined filling quality and effect.
In order to guarantee to pack quality, require after filling valve is closed, can not have material to drip to the packing container outside, just require not water clock of bottle placer.And for liquid-filling machine, having the minimal residue material after filling valve is closed unavoidably, the relatively large material of viscosity especially is such as cooking oil, lubricated wet goods.
Therefore, liquid-filling machine generally all can be provided with the antidrip device.At present, the most frequently used antidrip measure has two kinds: a kind of is the negative antidrip method of inhaling, and a kind of is the groove antidrip method that connects material.The negative antidrip method of inhaling is in the middle of filling valve spool and valve rod, all to be provided with elongated orifices, and this hole communicates with taking out negative pressure equipment, and salvage stores is taken away.The groove antidrip method that connects material is that the groove that connects material is set under filling valve, and during can, the groove that connects material is return original position, and when filling valve was closed, the groove that connects material stretched out, and places the filling valve below, with the liquid collecting of water clock, avoids it to pollute packing container, and the liquid after the collection is concentrated discharging again.
Above-mentioned two kinds of shortcomings that drip-proof method exists:
1. negative suction antidrip method needs equipment such as vacuum generator, needs the salvage stores gathering-device, and cost is higher relatively.Need regularly the salvage stores of collecting to be cleared up, increased the operating time.In addition, the salvage stores of collecting often can not satisfy quality requirements, has caused the waste of material.
2. the negative relatively suction method of the groove antidrip method that connects material is simple in structure, but also need the material cleaning of collecting also have been caused the waste of material simultaneously.In addition,, cause can method mouth and vessel port, increased the accurate positioning difficulty of vessel port apart from bigger because the existence of the groove that connects material is arranged between by container filling and can valve port.
Summary of the invention
The objective of the invention is to propose a kind of new filling liquid antidrip method; Promptly when filling valve is closed; The filling valve valve core inside forms the negative chamber of inhaling again, to reach the negative drip-proof effect of inhaling, finally provides a kind of and can improve can efficient; Reduce the liquid material loss, thus the conceited suction antidrip formula filling valve that reduces production costs.
Realize the technical scheme of the object of the invention: a kind of conceited suction antidrip formula filling valve; The valve port 1 that comprises valve body 9, is tightly connected with valve body 9 lower ends, valve body 9 upper ends have inlet point 11, and valve body 9 is provided with valve rod 10 and spool 2 with the center of the material cavity 13 that valve port 1 surrounds; Valve body 9 tops are passed in valve rod 10 upper ends; Valve rod 10 lower ends and spool 2 sealed sliding are dynamically connected, and the lower end of spool 2 and valve port 1 fitted, and it is characterized in that: be connected through seal ring 12 between described valve rod 10 and the spool 2; Valve rod 10 lower ends are provided with piston 6; Between piston 6 and the spool 2 inside lower end faces spring 3 is installed, spool 2 inside are provided with in-core guidepost 5, and described in-core guidepost 5 is connected with piston 6 inner seals; Form the negative chamber A of suction between seal ring 12 and the piston 6, form adapter cavity B between piston 6 and the in-core guidepost 5; The center of valve rod 9 lower ends, spool 2 lower ends and in-core guidepost 5 all has the hole that communicates with piston cavity, and spool 2 bottoms have the hole that communicates with material cavity 13, and valve rod 10 has the hole that is communicated with negative chamber A of suction and piston cavity.
Aforesaid a kind of conceited suction antidrip formula filling valve is characterized in that: be provided with outer guide sleeve 7 between described valve body 9 and the spool 2, and outer guide sleeve 7 and spool 2 bearing fits, outer guide sleeve 7 lower ends are provided with sleeve 4.
Aforesaid a kind of conceited suction antidrip formula filling valve is characterized in that: described outer guide sleeve 7 is the annulus shape.
Aforesaid a kind of conceited suction antidrip formula filling valve is characterized in that: between described spool 2 and the in-core guidepost 5 through being threaded.
Aforesaid a kind of conceited suction antidrip formula filling valve, it is characterized in that: described valve body 9 lower ends and valve port 1 are tightly connected through seal ring 8, and valve rod 10 is tightly connected through seal ring 8 with valve body 9.。
Effect of the present invention is: because this filling valve has been done particular design with spool, so when closing spool, spool can suck valve core cavity with the salvage stores of can spool below; When driving valve next time, pour into intracavity liquid in the packing container again, whole process is accomplished automatically; Do not need other antidrip mechanisms; Can not cause the waste of liquid material, improve can efficient, reduce productive costs.
Description of drawings
Fig. 1 is the structural representation of a kind of conceited suction antidrip formula filling valve provided by the present invention;
Fig. 2 be among Fig. 1 I-I to cutaway view;
Fig. 3 is in the structural representation of closed condition for a kind of conceited suction antidrip formula filling valve provided by the present invention;
Fig. 4 is in the structural representation of closed condition for a kind of conceited suction antidrip formula filling valve provided by the present invention.
Among the figure: 1. valve port; 2. spool; 3. spring; 4. sleeve; 5. in-core guidepost; 6. piston; 7. outer guide sleeve; 8. seal ring; 9. valve body; 10. valve rod; 11. inlet point; 12. seal ring; 13. material cavity.
The specific embodiment
Below in conjunction with accompanying drawing and embodiment the present invention is further described.
As depicted in figs. 1 and 2; A kind of conceited suction antidrip formula filling valve, the valve port 1 that comprises valve body 9, is tightly connected with valve body 9 lower ends, valve body 9 upper ends have inlet point 11; Valve body 9 is provided with valve rod 10 and spool 2 with the center of the material cavity 13 that valve port 1 surrounds; Valve body 9 tops are passed in valve rod 10 upper ends, and valve rod 10 lower ends and spool 2 sealed sliding are dynamically connected, and the lower end of spool 2 and valve port 1 are fitted.Be connected through seal ring 12 between valve rod 10 and the spool 2, valve rod 10 lower ends are provided with piston 6, between piston 6 and the spool 2 inside lower end faces spring 3 are installed, and spool 2 inside are provided with in-core guidepost 5, and described in-core guidepost 5 is connected with piston 6 inner seals; Form the negative chamber A of suction between seal ring 12 and the piston 6, form adapter cavity B between piston 6 and the in-core guidepost 5; The center of valve rod 9 lower ends, spool 2 lower ends and in-core guidepost 5 all has the hole that communicates with piston cavity, and spool 2 bottoms have the hole that communicates with material cavity 13, and valve rod 10 has the hole that is communicated with negative chamber A of suction and piston cavity.Be provided with outer guide sleeve 7 between valve body 9 and the spool 2, outer guide sleeve 7 lower ends are provided with sleeve 4.Spool 2 cooperatively interacts with outer guide sleeve 7, but slide relative, and 7 pairs of spools 2 of outer guide sleeve play directional tagging, make the O-ring conical surface on its accurate and valve port 1 fit the sealing and the closing movement of completion filling valve each other.
The working process and the principle of a kind of conceited suction antidrip formula filling valve provided by the invention are following:
When filling valve was closed, as shown in Figure 3, exterior actr drove valve rod 10 and moves downward, and valve rod 10 drives spool 2 and moves downward together, and when spool 2 was fitted with valve port 1 sealing surface, filling valve was closed, and stops can.At this moment; Actr drive valve rod 10 overcomes spring 3 elastic force to be continued to move downward; This moment, the volume of the negative chamber A of suction increased, and the volume of adapter cavity B reduces, because the negative volume of inhaling chamber A is pushed the speed greater than the speed that reduces of adapter cavity B; So form a negative pressure state at spool 2 center pores, this negative pressure state can suck the salvage stores of spool 2 bottoms the negative chamber A of suction.
When filling valve was opened, as shown in Figure 4, actr drove valve rod 10 upward movements, and valve rod 10 lower end pistons 6 are upward movement simultaneously, because the effect of spring 3, this moment, spool 2 still was in the state of fitting tightly with valve port 1.Because spool 2 is static, piston 6 upward movements, the negative volume of inhaling chamber A reduces; Simultaneously adapter cavity B volume increases, and the negative volume of inhaling chamber A reduces speed greater than the pushing the speed of adapter cavity B, so; Material unnecessary among the negative chamber A of suction will be discharged by the centre hole of spool 2, pour into container filling.Thereby do not produce the waste of any material.
Obviously, those skilled in the art can carry out various changes and modification to the present invention and not break away from the spirit and scope of the present invention.Belong within the scope of claim of the present invention and equivalent technologies thereof if these are revised with modification, then the present invention also is intended to comprise these changes and modification interior.

Claims (5)

1. think highly of oneself to inhale antidrip formula filling valve for one kind; The valve port (1) that comprises valve body (9), is tightly connected with valve body (9) lower end, valve body (9) upper end has inlet point (11), and valve body (9) is provided with valve rod (10) and spool (2) with the center of the material cavity (13) that valve port (1) surrounds; Valve body (9) top is passed in valve rod (10) upper end; Valve rod (10) lower end and spool (2) sealed sliding are dynamically connected, and the lower end of spool (2) and valve port (1) are fitted, and it is characterized in that: be connected through seal ring (12) between described valve rod (10) and the spool (2); Valve rod (10) lower end is provided with piston (6); Between piston (6) and spool (2) the inside lower end face spring (3) is installed, spool (2) inside is provided with in-core guidepost (5), and described in-core guidepost (5) is connected with piston (6) inner seal; Form the negative chamber A of suction between seal ring (12) and the piston (6), form adapter cavity B between piston (6) and the in-core guidepost (5); The center of valve rod (9) lower end, spool (2) lower end and in-core guidepost (5) all has the hole that communicates with piston cavity, and spool (2) bottom has the hole that communicates with material cavity (13), and valve rod (10) has the hole that is communicated with negative chamber A of suction and piston cavity.
2. according to the described a kind of conceited suction antidrip formula filling valve of claim 1, it is characterized in that: be provided with outer guide sleeve (7) between described valve body (9) and the spool (2), outer guide sleeve (7) and spool (2) bearing fit, outer guide sleeve (7) lower end is provided with sleeve (4).
3. according to the described a kind of conceited suction antidrip formula filling valve of claim 1, it is characterized in that: described outer guide sleeve (7) is the annulus shape.
4. according to the described a kind of conceited suction antidrip formula filling valve of claim 1, it is characterized in that: between described spool (2) and the in-core guidepost (5) through being threaded.
5. according to the described a kind of conceited suction antidrip formula filling valve of claim 1, it is characterized in that: described valve body (9) lower end and valve port (1) are tightly connected through seal ring (8), and valve rod (10) is tightly connected through seal ring (8) with valve body (9).
CN 201120303422 2011-08-19 2011-08-19 Self negative suction anti-dropwise-leakage filling valve Withdrawn - After Issue CN202219865U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 201120303422 CN202219865U (en) 2011-08-19 2011-08-19 Self negative suction anti-dropwise-leakage filling valve

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 201120303422 CN202219865U (en) 2011-08-19 2011-08-19 Self negative suction anti-dropwise-leakage filling valve

Publications (1)

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CN202219865U true CN202219865U (en) 2012-05-16

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Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102951319A (en) * 2011-08-19 2013-03-06 北京强度环境研究所 Negative-suction leak-proof filling valve
CN103057750A (en) * 2012-12-02 2013-04-24 长春北方仪器设备有限公司 No-leakage material filling head and material filling method thereof
CN104401918A (en) * 2014-11-21 2015-03-11 马鞍山朗辉机械有限公司 Filling valve with pressure release
CN105173207A (en) * 2015-08-13 2015-12-23 天津市博爱制药有限公司 Leak-proof sprayer
CN105967129A (en) * 2016-06-17 2016-09-28 北京航天斯达科技有限公司 Three-stage filling valve capable of achieving self negative suction
CN106956790A (en) * 2017-03-31 2017-07-18 长春北方化工灌装设备股份有限公司 A kind of explosion-proof filling robot system based on interior reverse-flow type charge rifle
CN107265380A (en) * 2017-05-31 2017-10-20 苏州首达机械有限公司 A kind of filling head
CN113525787A (en) * 2021-06-18 2021-10-22 刘刚 Viscous cosmetic filling head preventing contamination of filling container during displacement

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102951319A (en) * 2011-08-19 2013-03-06 北京强度环境研究所 Negative-suction leak-proof filling valve
CN102951319B (en) * 2011-08-19 2015-09-30 北京强度环境研究所 Self negative suction anti-dropwise-leakage filling valve
CN103057750A (en) * 2012-12-02 2013-04-24 长春北方仪器设备有限公司 No-leakage material filling head and material filling method thereof
CN103057750B (en) * 2012-12-02 2015-01-14 长春北方化工灌装设备有限公司 No-leakage material filling head and material filling method thereof
CN104401918A (en) * 2014-11-21 2015-03-11 马鞍山朗辉机械有限公司 Filling valve with pressure release
CN105173207A (en) * 2015-08-13 2015-12-23 天津市博爱制药有限公司 Leak-proof sprayer
CN105173207B (en) * 2015-08-13 2018-03-27 天津市博爱制药有限公司 A kind of drip-proof shower nozzle
CN105967129A (en) * 2016-06-17 2016-09-28 北京航天斯达科技有限公司 Three-stage filling valve capable of achieving self negative suction
CN106956790A (en) * 2017-03-31 2017-07-18 长春北方化工灌装设备股份有限公司 A kind of explosion-proof filling robot system based on interior reverse-flow type charge rifle
CN106956790B (en) * 2017-03-31 2020-12-29 长春融成智能设备制造股份有限公司 Explosion-proof filling robot system based on internal reflux type filling gun
CN107265380A (en) * 2017-05-31 2017-10-20 苏州首达机械有限公司 A kind of filling head
CN113525787A (en) * 2021-06-18 2021-10-22 刘刚 Viscous cosmetic filling head preventing contamination of filling container during displacement

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GR01 Patent grant
AV01 Patent right actively abandoned

Granted publication date: 20120516

Effective date of abandoning: 20150930

RGAV Abandon patent right to avoid regrant