CN111137825A

CN111137825A - Filling valve

Info

Publication number: CN111137825A
Application number: CN202010127214.0A
Authority: CN
Inventors: 唐志华; 张捷; 王晶; 朱佳楠; 袁丽芳; 唐光海
Original assignee: Jiangsu Huihe Packaging Machinery Co ltd
Current assignee: Jiangsu Huihe Packaging Machinery Co ltd
Priority date: 2020-02-28
Filing date: 2020-02-28
Publication date: 2020-05-12

Abstract

The invention relates to a filling valve, which comprises an upper cover, a valve body, a valve seat, a liquid inlet joint, a liquid outlet joint, a valve nozzle, a sealing washer, a filter screen, a combining cap, a cleaning cup, a sealing washer, a valve core assembly, a driving assembly and an adjusting assembly, wherein the valve body is arranged on the upper cover; the valve core assembly is arranged in the valve body, the driving assembly is arranged above the upper cover and connected with the valve core assembly, the two adjusting assemblies are arranged above the valve seat and are arranged on the left side of the valve body; the invention can be generally used for hot filling and cold filling, can meet the production of hot filling products and cold filling products only by one filling valve, thereby reducing the production cost, can thoroughly clean the interior of the filling valve and a sealing element by means of CIP backflow work, eliminates sanitary dead corners, is safe and pollution-free during product filling, and has simple structure and convenient manufacture.

Description

Filling valve

Technical Field

The invention relates to a filling valve.

Background

The filling valve is a common switch type valve in the liquid material packaging industry, the existing filling valves suitable for hot filling or cold filling are different in structure and cannot be used universally, and one filling valve cannot meet the requirements of hot filling and cold filling at the same time, so that the hot filling product and the cold filling product can be produced only by independently preparing a special filling valve, and the production cost is high; and the interior and the sealing element of the existing filling valve can not be thoroughly cleaned, so that sanitary dead angles are easily generated, and the product is easily polluted during filling, thereby further improvement is needed.

Disclosure of Invention

In view of the current situation of the prior art, the technical problem to be solved by the present invention is to provide a filling valve which can be generally used for hot filling and cold filling to reduce the production cost, can thoroughly clean the interior of the filling valve and a sealing element to eliminate the sanitary dead angle, and has the advantages of simple structure and convenient manufacture.

The technical scheme adopted by the invention for solving the technical problems is as follows: a filling valve is characterized by comprising an upper cover, a valve body, a valve seat, a liquid inlet joint, a liquid outlet joint, a valve nozzle, a sealing washer, a filter screen, a combining cap, a cleaning cup, a sealing washer, a valve core assembly, a driving assembly and an adjusting assembly; the lower end of the valve body is embedded in the valve seat, the upper cover is arranged at the upper end of the valve body, the cleaning cup is detachably arranged at the lower end of the valve seat, the cap is sleeved outside the lower end of the valve body and is arranged inside the valve seat, the sealing gasket is arranged between the cleaning cup and the lower end of the valve seat, the liquid inlet joint is embedded inside the right side of the valve body and is arranged above the valve seat, the valve nozzle is arranged at the lower end of the valve body and is arranged inside the cap, the filter screen is embedded inside the lower end of the valve nozzle, the sealing gasket is embedded inside the lower end of the valve nozzle and is arranged below the filter screen, the upper side and the lower side of the sealing gasket are respectively attached to the lower side of the filter screen and the inner bottom surface of the cap, the liquid outlet joint is arranged at the rear side of the valve seat, the valve core assembly is arranged inside the valve body, the driving, the two adjusting assemblies are arranged above the valve seat, are arranged on the left side of the valve body and are matched with the liquid outlet connector, the upper end and the lower end of the valve body are respectively provided with a first valve cavity and a second valve cavity, a valve hole is formed between the first valve cavity and the second valve cavity, the upper side of the left side of the valve seat is provided with two third valve cavities, the rear side of the valve seat is provided with a counter bore, the counter bore is communicated with the bottoms of the two third valve cavities, one of the front sides of the valve seat is provided with a first channel on the inner wall on the right side of the third valve cavity, correspondingly, a second channel is arranged on the bottom of the inner wall on the left side of the first valve cavity, the second channel is communicated with the first channel, the lower end of the valve seat is provided with a fourth valve cavity, and a third channel is arranged between the right side of the bottom of the.

Preferably, the inner end of the liquid inlet joint is communicated with the inner wall of the right side of the first valve cavity, and the liquid outlet joint is arranged at an opening of the counter bore.

Preferably, the valve core assembly comprises a valve rod, a sealing ring and a shunt core; the valve rod is vertically arranged in the first valve cavity and the second valve cavity, the sealing ring is sleeved on the valve rod and arranged in the second valve cavity and matched with the valve hole, and the shunt core is fixed inside the lower end of the valve body.

Preferably, a plurality of shunting holes are formed in the shunting core; the upper end of the valve rod vertically penetrates through the upper cover upwards and extends out of the upper cover.

Preferably, the driving assembly comprises a double-stroke cylinder, a spring seat, a pressure spring, a connecting plate and a supporting column; the connecting plate is transversely arranged above the upper cover, the double-stroke cylinder is vertically fixed on the upper plane of the connecting plate, and a plurality of vertically distributed support columns are fixed between the connecting plate and the upper cover; the spring seat sleeve is fixed on the valve rod and arranged between the connecting plate and the upper cover, and the compression spring sleeve is arranged on the valve rod and arranged between the spring seat and the upper cover.

Preferably, the lower telescopic end of the double-stroke cylinder vertically penetrates through the connecting plate downwards and is fixed to the upper end of the valve rod, the upper end of the pressure spring is inserted into the lower end of the spring seat, and the lower end of the pressure spring abuts against the upper side of the upper cover.

Preferably, the adjustment assembly comprises a top seat, a spring, an end cover, a valve post and a corrugated gland; the top seat is arranged above the left side of the valve seat, the end cover is arranged above the top seat, the valve column is vertically and movably arranged inside the top seat, the lower end of the valve column is fixedly sleeved with the corrugated sealing sleeve, and the spring sleeve is arranged on the valve column and arranged between the top seat and the end cover.

Preferably, the corrugated sealing sleeves in the two adjusting assemblies are respectively arranged in the two third valve cavities, and the lower ends of the corrugated sealing sleeves are matched with the openings at the lower ends of the third valve cavities.

Preferably, a sunk cavity is formed in the upper end of the top seat, the lower end of the end cover is inserted into the sunk cavity, a movable cavity is formed in the lower end of the end cover, a push head is formed at the upper end of the valve post and is arranged in the movable cavity, an air passage is formed in the left side of the end cover, and the inner end of the air passage is communicated with the inner wall of the top of the movable cavity.

Preferably, the upper end of the spring props against the lower end of the pushing head, and the lower end of the spring props against the bottom surface of the sinking cavity.

Compared with the prior art, the invention has the advantages that: the invention can be generally used for hot filling and cold filling, can meet the production of hot filling products and cold filling products only by one filling valve, thereby reducing the production cost, can thoroughly clean the interior of the filling valve and a sealing element by means of CIP backflow work, eliminates sanitary dead corners, is safe and pollution-free during product filling, and has simple structure and convenient manufacture.

Drawings

FIG. 1 is a front sectional view of the present invention;

FIG. 2 is a left side view of the present invention;

fig. 3 is a top view structural diagram of the present invention.

Detailed Description

As shown in fig. 1 to 3, a filling valve includes an upper cover 4, a valve body 5, a valve seat 11, a liquid inlet joint 13, a liquid outlet joint 24, a valve mouth 16, a sealing washer 17, a filter screen 18, a combining cap 19, a cleaning cup 20, a sealing washer 21, a valve core assembly, a driving assembly and an adjusting assembly; the lower end of the valve body 5 is embedded in the valve seat 11, the upper cover 4 is arranged at the upper end of the valve body 5, the cleaning cup 20 is detachably arranged at the lower end of the valve seat 11, the cap 19 is sleeved outside the lower end of the valve body 5 and is arranged inside the valve seat 11, the sealing gasket 21 is arranged between the cleaning cup 20 and the lower end of the valve seat 11, the liquid inlet joint 13 is embedded inside the right side of the valve body 5 and is arranged above the valve seat 11, the valve nozzle 16 is arranged at the lower end of the valve body 5 and is arranged inside the cap 19, the filter screen 18 is embedded inside the lower end of the valve nozzle 16, the sealing gasket 17 is embedded inside the lower end of the valve nozzle 16 and is arranged below the filter screen 18, the upper side and the lower side of the sealing gasket 17 are respectively attached to the lower side of the filter screen 18 and the bottom surface of the inside of the cap 19, the liquid outlet joint 24 is arranged at the rear side of the valve seat, the two adjusting components are arranged above the valve seat 11, are arranged on the left side of the valve body 5 and are matched with the liquid outlet joint 24; the upper end and the lower end of the valve body 5 are respectively provided with a first valve cavity 51 and a second valve cavity 52, a valve hole 53 is formed between the first valve cavity 51 and the second valve cavity 52, and the inner end of the liquid inlet joint 13 is communicated with the inner wall of the right side of the first valve cavity 51; two third valve cavities 111 are formed in the upper portion of the left side of the valve seat 11, a counter bore 116 is formed in the rear side of the valve seat 11, the counter bore 116 is communicated with the bottoms of the two third valve cavities 111, the liquid outlet connector 24 is arranged at an opening of the counter bore 116, a first channel 112 is formed in the inner wall of the right side of one third valve cavity 111 in the front side, correspondingly, a second channel 54 is formed in the bottom of the inner wall of the left side of the first valve cavity 51, and the second channel 54 is communicated with the first channel 112; the lower end of the valve seat 11 is provided with a fourth valve cavity 115, and a third channel 113 is arranged between the right side of the bottom of the third valve cavity 111 at the rear side and the left side of the top of the fourth valve cavity 115; the valve core assembly comprises a valve rod 12, a sealing ring 14 and a shunt core 15; the valve rod 12 is vertically arranged in the first valve cavity 51 and the second valve cavity 52, the sealing ring 14 is sleeved on the valve rod 12 and arranged in the second valve cavity 52 and matched with the valve hole 53, the flow distribution core 15 is fixed in the lower end of the valve body 5, and a plurality of flow distribution holes 151 are formed in the flow distribution core 15; the upper end of the valve rod 12 vertically penetrates through the upper cover 4 upwards and extends out of the upper cover 4; the driving assembly comprises a double-stroke cylinder 1, a spring seat 2, a pressure spring 3, a connecting plate 22 and a supporting column 23; the connecting plate 22 is transversely arranged above the upper cover 4, the double-stroke cylinder 1 is vertically fixed on the upper plane of the connecting plate 22, and a plurality of vertically distributed support columns 23 are fixed between the connecting plate 22 and the upper cover 4; the spring seat 2 is fixedly sleeved on the valve rod 12 and arranged between the connecting plate 22 and the upper cover 4, the lower telescopic end of the double-stroke cylinder 1 vertically penetrates through the connecting plate 22 downwards and is fixed at the upper end of the valve rod 12, the pressure spring 3 is sleeved on the valve rod 12 and arranged between the spring seat 2 and the upper cover 4, the upper end of the pressure spring 3 is inserted into the lower end of the spring seat 2, and the lower end of the pressure spring 3 abuts against the upper side of the upper cover 4; the adjusting component comprises a top seat 9, a spring 8, an end cover 6, a valve column 7 and a corrugated sealing sleeve 10; the top seat 9 is arranged above the left side of the valve seat 11, the end cover 6 is arranged above the top seat 9, the valve column 7 is vertically and movably arranged inside the top seat 9, the corrugated sealing sleeve 10 is sleeved and fixed at the lower end of the valve column 7, and the spring 8 is sleeved on the valve column 7 and arranged between the top seat 9 and the end cover 6; the corrugated sealing sleeves 10 in the two adjusting assemblies are respectively arranged in the two third valve cavities 111, and the lower ends of the corrugated sealing sleeves 10 are matched with the lower end openings of the third valve cavities 111; heavy chamber 91 has been seted up to footstock 9's upper end, and the lower extreme of end cover 6 inserts in heavy chamber 91, and movable chamber 62 has been seted up to the lower extreme inside of end cover 6, and the upper end of valve post 7 is formed with pusher 71, and in pusher 71 located movable chamber 62, air flue 61 has been seted up to the left side of end cover 6, and the inner of air flue 61 communicates with each other with the top inner wall in movable chamber 62, and the lower extreme of pusher 71 is withstood to the upper end of spring 8, and the bottom surface of heavy chamber 91 is withstood to the lower extreme of spring 8.

The working principle is as follows: the cleaning cup 20 is detached, the sealing gasket 21 is removed, and the bottle body is moved to the position below the combining cap 19 and vertically moved upwards until the bottle mouth of the bottle body is inserted into the lower end of the fourth valve cavity 115 and sleeved outside the combining cap 19; then, the upper and lower telescopic ends of the double-stroke cylinder 1 are driven to simultaneously extend outwards, and the valve rod 12 is pushed by the spring seat 2 to move downwards and compress the pressure spring 3, so that the sealing ring 14 is driven to move downwards to leave the lower side end face of the valve hole 53, and the first valve cavity 51 and the second valve cavity 52 are communicated with each other at the moment; then the material flows into the first valve cavity 51 through the liquid inlet joint 13, then enters the valve mouth 16 through the second valve cavity 52 and the plurality of shunting holes 151 in the shunting core 15, and finally enters the bottle body through the filter screen 18, the process is quick filling, the downward impact force of the material can be reduced due to the arrangement of the plurality of shunting holes 151, the filter screen 18 can filter out foam and impurities in the material, the liquid level difference caused by too much foam can be effectively prevented, and the material can be prevented from dripping and leaking by the sealing ring 17; when the material flow reaches a set value, one telescopic end on the upper side of the double-stroke cylinder 1 is contracted inwards, the valve rod 12 drives the sealing ring 14 to move upwards slowly, so that the size of a gap between the first valve cavity 51 and the second valve cavity 52 is reduced to reduce the flow, slow filling is started, when the material flow reaches the set value, input is stopped, one telescopic end on the lower side of the double-stroke cylinder 1 is driven to contract inwards until the upper end of the sealing ring 14 is attached to the lower side end face of the valve hole 53, the first valve cavity 51 and the second valve cavity 52 are cut off, then the bottle body is moved downwards and moved away, and filling is finished.

Two front and back adjusting part control CIP backward flow and material backward flow respectively.

When cold filling is carried out, backflow is not required, at the moment, compressed air is introduced into the air passages 61 on the two end covers 6, and then the push head 71 is pressed downwards, so that the valve post 7 is used for driving the corrugated sealing sleeve 10 to move downwards, the lower end of the corrugated sealing sleeve 10 is further used for blocking the lower end opening of the third valve cavity 111, and the two third valve cavities 111 are closed; when hot filling is carried out, the temperature of the materials needs to be ensured through backflow; during backflow, compressed air is continuously introduced into the movable cavity 62 in one end cover 6 on the rear side, the movable cavity 62 is vacuumized by virtue of the air channel 61 in the end cover 6 in one adjusting assembly on the front side, the push head 71 on the front side moves upwards under the action of the rebound force of the spring 8, and then one corrugated sealing sleeve 10 on the front side is driven to move upwards, so that the lower end opening of one third valve cavity 111 on the front side is opened; when the first valve chamber 51 and the second valve chamber 52 are cut off, the material in the first valve chamber 51 enters the first passage 112 through the second passage 54, enters the counter bore 116 through a third valve chamber 111 on the front side, and is discharged through the liquid outlet joint 24 and returns to the material storage container, so that the material backflow is realized.

When the CIP backflow is performed, the cleaning cup 20 and the sealing gasket 21 are both installed back on the valve seat 11, then the air passage 61 in one end cover 6 on the rear side is vacuumized according to the same principle, and compressed air is introduced into the air passage 61 in one end cover 6 on the front side, so that one third valve cavity 111 on the rear side is opened, one third valve cavity 111 on the front side is closed, one telescopic end on the lower side of the double-stroke cylinder 1 is driven to extend outwards to open the first valve cavity 51 and the second valve cavity 52, and materials enter the first valve cavity 51 and the second valve cavity 52 from the liquid inlet connector 13, flow through the flow dividing core 15, the valve nozzle 16, the sealing gasket 17, the filter screen 18 and the combining cap 19 to flush the cleaning cup 20, flow upwards to the fourth valve cavity 115, flow through the third channel 113 to one third valve cavity 111 on the rear side, and flow out through the counter bore 116 and the connector 24, so that the areas where the material flows are all flushed clean, and realizing CIP circulation cleaning.

The existing filling valves suitable for hot filling or cold filling have different structures and cannot be used universally, and one filling valve cannot meet the requirements of hot filling and cold filling at the same time, so that the production of hot filling products and cold filling products can be finished only by independently equipping one special filling valve, and the production cost is higher; the interior and the sealing element of the existing filling valve can not be thoroughly cleaned, so that sanitary dead corners are easily generated, and the product is easily polluted during filling; the invention can be generally used for hot filling and cold filling, can meet the production of hot filling products and cold filling products only by one filling valve, thereby reducing the production cost, can thoroughly clean the interior of the filling valve and a sealing element by means of CIP backflow work, eliminates sanitary dead corners, is safe and pollution-free during product filling, and has simple structure and convenient manufacture.

Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those skilled in the art that various changes in the embodiments and modifications thereof may be made, and equivalents may be substituted for elements thereof; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A filling valve is characterized by comprising an upper cover, a valve body, a valve seat, a liquid inlet joint, a liquid outlet joint, a valve nozzle, a sealing washer, a filter screen, a combining cap, a cleaning cup, a sealing washer, a valve core assembly, a driving assembly and an adjusting assembly; the lower end of the valve body is embedded in the valve seat, the upper cover is arranged at the upper end of the valve body, the cleaning cup is detachably arranged at the lower end of the valve seat, the cap is sleeved outside the lower end of the valve body and is arranged inside the valve seat, the sealing gasket is arranged between the cleaning cup and the lower end of the valve seat, the liquid inlet joint is embedded inside the right side of the valve body and is arranged above the valve seat, the valve nozzle is arranged at the lower end of the valve body and is arranged inside the cap, the filter screen is embedded inside the lower end of the valve nozzle, the sealing gasket is embedded inside the lower end of the valve nozzle and is arranged below the filter screen, the upper side and the lower side of the sealing gasket are respectively attached to the lower side of the filter screen and the inner bottom surface of the cap, the liquid outlet joint is arranged at the rear side of the valve seat, the valve core assembly is arranged inside the valve body, the driving, the two adjusting assemblies are arranged above the valve seat, are arranged on the left side of the valve body and are matched with the liquid outlet connector, the upper end and the lower end of the valve body are respectively provided with a first valve cavity and a second valve cavity, a valve hole is formed between the first valve cavity and the second valve cavity, the upper side of the left side of the valve seat is provided with two third valve cavities, the rear side of the valve seat is provided with a counter bore, the counter bore is communicated with the bottoms of the two third valve cavities, one of the front sides of the valve seat is provided with a first channel on the inner wall on the right side of the third valve cavity, correspondingly, a second channel is arranged on the bottom of the inner wall on the left side of the first valve cavity, the second channel is communicated with the first channel, the lower end of the valve seat is provided with a fourth valve cavity, and a third channel is arranged between the right side of the bottom of the.

2. The filling valve according to claim 1, wherein the inner end of the liquid inlet joint is communicated with the inner wall of the right side of the first valve chamber, and the liquid outlet joint is arranged at the opening of the counter bore.

3. The filling valve of claim 1, wherein the cartridge assembly comprises a valve stem, a seal ring, and a diverter cartridge; the valve rod is vertically arranged in the first valve cavity and the second valve cavity, the sealing ring is sleeved on the valve rod and arranged in the second valve cavity and matched with the valve hole, and the shunt core is fixed inside the lower end of the valve body.

4. A filling valve according to claim 3, wherein a plurality of dispensing apertures are formed in the dispensing core; the upper end of the valve rod vertically penetrates through the upper cover upwards and extends out of the upper cover.

5. A filling valve according to claim 4, wherein the drive assembly comprises a two-stroke cylinder, a spring seat, a compression spring, a connecting plate and a support post; the connecting plate is transversely arranged above the upper cover, the double-stroke cylinder is vertically fixed on the upper plane of the connecting plate, and a plurality of vertically distributed support columns are fixed between the connecting plate and the upper cover; the spring seat sleeve is fixed on the valve rod and arranged between the connecting plate and the upper cover, and the compression spring sleeve is arranged on the valve rod and arranged between the spring seat and the upper cover.

6. A filling valve according to claim 5, wherein the lower telescopic end of the double-stroke cylinder passes vertically downwards through the connecting plate and is fixed to the upper end of the valve stem, the upper end of the compression spring is inserted into the lower end of the spring seat, and the lower end of the compression spring abuts against the upper side of the upper cover.

7. A filling valve according to claim 1, wherein the adjustment assembly comprises a top seat, a spring, an end cap, a valve stem and a bellows gland; the top seat is arranged above the left side of the valve seat, the end cover is arranged above the top seat, the valve column is vertically and movably arranged inside the top seat, the lower end of the valve column is fixedly sleeved with the corrugated sealing sleeve, and the spring sleeve is arranged on the valve column and arranged between the top seat and the end cover.

8. The filling valve according to claim 3, wherein the bellows seals of the two adjustment assemblies are respectively disposed in the two third valve chambers, and the lower ends of the bellows seals are engaged with the lower openings of the third valve chambers.

9. The filling valve according to claim 7, wherein a cavity is formed in an upper end of the top seat, a lower end of the end cover is inserted into the cavity, a movable cavity is formed in a lower end of the end cover, a push head is formed at an upper end of the valve stem, the push head is arranged in the movable cavity, an air passage is formed in a left side of the end cover, and an inner end of the air passage is communicated with an inner wall of a top of the movable cavity.

10. A filling valve according to claim 9, wherein the upper end of the spring bears against the lower end of the pusher, and the lower end of the spring bears against the bottom surface of the counterbore.