CN102020227A - Long-tube liquid filling device and filling method - Google Patents
Long-tube liquid filling device and filling method Download PDFInfo
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- CN102020227A CN102020227A CN 200910195560 CN200910195560A CN102020227A CN 102020227 A CN102020227 A CN 102020227A CN 200910195560 CN200910195560 CN 200910195560 CN 200910195560 A CN200910195560 A CN 200910195560A CN 102020227 A CN102020227 A CN 102020227A
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Abstract
The invention relates to a long-tube liquid filling device and a method for filling liquid materials in a material jar into a container. The long-tube liquid filling device comprises a liquid-infusing tube, a fluid valve, an airflow channel and an air valve component for connecting/disconnecting the airflow channel, wherein the airflow channel comprises an air-return channel which is connected to the container by pointing at the internal of the container from a container opening at the filling position after passing through a liquid outlet, a pressure-releasing airflow channel connected to a pressure-releasing chamber, a backpressure airflow channel connected to a backpressure air chamber and a liquid outlet connecting channel which is connected to the liquid-infusing tube by pointing at the internal of the liquid-infusing tube from the upper end of the liquid-infusing tube after passing through the liquid outlet. The air valve component comprises a pressure-releasing valve which can be switched on/off to connect/disconnect the air-return channel with/from the pressure-releasing airflow channel, a filling valve which can be switched on/off to connect/disconnect the air-return channel with/from the backpressure airflow channel, and a return valve which can be switched on/off to connect/disconnect the liquid outlet connecting channel with/from the pressure-releasing airflow channel.
Description
Technical field
The present invention relates to a kind of long tube liquid filling device and packaging process, relate in particular to a kind of long tube liquid filling device and packaging process that is used for the air containing fluid such as beer etc. is filled to container.
Background technology
Liquid filling device mainly contains two kinds of short tube liquid filling device and long tube liquid filling devices.Wherein, when filling liquid, the filling tube lower end of short tube liquid filling device is near container finish, and liquid is distributed to container inner wall and flows to container bottom along container inner wall under the effect of the shunt umbrella on the filling tube, and the gas in the container is discharged from filling tube.This liquid filling device flow stream velocity can not be too fast, otherwise liquid is easy to impact container inner wall and then cause gas to separate out and form foam, thereby influence filling accuracy.In addition, in order to realize isobar filling, the short tube liquid filling device needs at first container to be vacuumized.When container is thin-walled pressure vessel such as the easy deformation of plastic bottle etc., vacuumizes and to cause container deformation, and can't vacuumize fully container.Therefore, the short tube liquid filling device can only be used for the on-deformable glass container of can.
Relative with it, the filling tube of long tube filling apparatus stretches into container bottom during can, and liquid pours into container from container bottom, and the impulsive force between liquid and the container inner wall is little, can reduce gas and separate out.In addition, in the external long tube liquid machine filling valve that Chinese utility model patent CN2818447Y is proposed, cancel the operation that vacuumizes, utilized filling tube in container, to spray CO
2Gas can prevent that with the air in the displacement container thin-walled pressure vessel from deforming.Yet, because the filling apparatus of this utility model patent is utilizing filling tube to spray CO in container before the filling liquid
2Drop residual in the gas, filling tube is also along with CO
2Gas enters container, can pollute container so on the one hand, also can influence filling accuracy on the other hand.
In addition, in the filling apparatus of above-mentioned utility model, after release, the remaining liq in the filling tube can't all fall into container, these residual liquid when next can with the CO that sprays in the container
2Gas falls into container, has aggravated the pollution of container and to the influence of filling accuracy.
Summary of the invention
At the problem that above-mentioned existing long tube liquid filling device exists, task of the present invention is to provide a kind of long tube liquid filling device and packaging process, and this long tube liquid filling device and packaging process can improve the precision of filling liquid.
For realizing above-mentioned task, the invention provides a kind of long tube liquid filling device, be used for filling liquid with the material cylinder in container, this long tube liquid filling device comprises: can stretch in the container that is in filling position and the filling tube of the described liquid of can in the container, be provided with described filling tube upper end and seal liquid valve, the gas channel of the liquid outlet that links to each other, and be used for the air-valve assembly that connected sum disconnects described gas channel.Described gas channel comprises: return gas channel, and this return gas channel points to the container connection container by described liquid outlet from the container finish that is positioned at filling position; With unload the release gas channel that plenum chamber is connected, the back pressure flow passage that is connected with the back pressure air chamber and point to the liquid outlet communication passage that is communicated with described filling tube in the described filling tube from described liquid outlet through described filling tube upper end by described liquid outlet.Described air-valve assembly comprises: pressure-relief valve, this pressure-relief valve can be unlocked and be communicated with described return gas channel and described release gas channel, and are closed and disconnect being communicated with between described return gas channel and the described release gas channel; Filling valve, this filling valve can be unlocked and be communicated with described return gas channel and described back pressure flow passage, and are closed and disconnect being communicated with between described return gas channel and the described back pressure flow passage; And material returning valve, this material returning valve can be unlocked and be communicated with described liquid outlet communication passage and described release gas channel, and is closed and disconnects being communicated with between described liquid outlet communication passage and the described release gas channel.
In addition, it is a kind of with the method for the filling liquid in the material cylinder in the container that the present invention also provides, and accommodates liquid in the described material cylinder and be positioned at back pressure gas on the liquid level, and this back pressure gas comes from the back pressure air chamber, and this method may further comprise the steps:
(a) make back pressure gas under the back pressure effect, only flow into container from gas passage at the oral area connection container of container, thus make in the container gas from described gas passage reservoir channel amount discharge container independently mutually;
(b) stop described gas amount discharge container through after the schedule time;
(c) in container, reach under the back pressure state via height to container in the filling liquid that can not make described liquid bubbing of described reservoir channel at the distance container bottom;
(d) when the liquid in the container reaches predetermined altitude, stop to container filling liquid;
(e) make the interior residue back pressure gas amount discharge container of container, thereby make the air pressure in the container drop to barometric pressure.
Description of drawings
Fig. 1 schematically shown long tube liquid filling device of the present invention structure and and the other parts of bottle placer between annexation;
Fig. 2 has shown when container is positioned at filling position, the annexation between the other parts of long tube liquid filling device shown in Figure 1 and bottle placer;
Fig. 3 has shown the constructional drawing of long tube liquid filling device shown in Figure 1.
The specific embodiment
Fig. 1 and 2 shows structure and and material cylinder 22, the back pressure air chamber 7 of bottle placer and unload annexation between the parts such as plenum chamber 8 of container 6 long tube liquid filling device 1 of the present invention when non-filling position and filling position respectively.Fig. 3 shows the structural representation of long tube liquid filling device 1 of the present invention.
Long tube liquid filling device 1 is used for the liquid material 24 of material cylinder 22 is filled in the container 6.As shown in Figure 3, long tube liquid filling device 1 comprises and can stretch into the container 6 that is in filling position and filling liquid material 24 filling tube 21 in the container 6.Particularly, this filling tube 21 stretches into certain depth in the container 6, makes liquid material 24 in the height can road container 6 that can not make liquid material 24 bubbings of distance container 6 bottoms.
Long tube liquid filling device 1 also comprises liquid valve 2, and this liquid valve 2 has the liquid outlet 45 that links to each other with the upper end sealing of filling tube 21.As shown in Figure 3, the upper end of filling tube 21 can be inserted in the liquid outlet 45 and be linked to each other with liquid outlet 45 sealings.And being tightly connected for example by realizing such as the sealing arrangement of O RunddichtringO in the setting of the junction of filling tube 21 upper ends and liquid outlet 45 between the upper end of filling tube 21 and the liquid outlet 45.This liquid valve 2 can be unlocked and be closed to stop above-mentioned filling liquid to allow liquid material 24 to be filled to container 6 neutralizations.
Long tube liquid filling device 1 also comprises gas channel 40.Gas channel 40 comprises: the return gas channel 40d that points to container 6 connection containers 6 by liquid outlet 45 from the oral area of the container 6 that is positioned at filling position; With unload the release gas channel 40c that plenum chamber 8 is connected; The back pressure flow passage 40a that is connected with back pressure air chamber 7; With the liquid outlet communication passage 40b that in filling tube 21 is pointed in filling tube 21 upper ends, is communicated with filling tube 21 by liquid outlet 45 from liquid outlet 45.As shown in Figure 3, return gas channel 40d can be by liquid outlet 45 connection containers 6 below the position that upper end liquid outlet 45 and filling tube 21 sealing links to each other.And liquid outlet communication passage 40b can be communicated with filling tube 21 above the position that upper end liquid outlet 45 and filling tube 21 sealing links to each other.
In order to be communicated with above-mentioned each gas channel 40 and to disconnect connection between above-mentioned each gas channel 40, long tube liquid filling device 1 also further comprises air-valve assembly 30.Wherein, air-valve assembly 30 comprises: pressure-relief valve 35, this pressure-relief valve 35 can be unlocked and be communicated with return gas channel 40d and release gas channel 40c, and are closed and disconnect being communicated with between return gas channel 40d and the release gas channel 40c; Filling valve 32, this filling valve 32 can be unlocked and be communicated with return gas channel 40d and back pressure flow passage 40a, and are closed and disconnect being communicated with between return gas channel 40d and the back pressure flow passage 40a; With material returning valve 34, this material returning valve 34 can be unlocked and be communicated with liquid outlet communication passage 40b and release gas channel 40c, and is closed and disconnects being communicated with between liquid outlet communication passage 40b and the release gas channel 40c.
Particularly, as shown in Figure 3, pressure-relief valve 35 links to each other with release gas channel 40c with return gas channel 40d.When pressure-relief valve 35 is opened, return gas channel 40d and release gas channel 40c communicate with each other, make the container 6 be positioned at filling position oral area with unload plenum chamber 8 fluids and be communicated with, container 6 interior gases can be mobile to unloading plenum chamber 8 via oral area, return gas channel 40d, pressure-relief valve 35 and the release gas channel 40c of container 6; When pressure-relief valve 35 cuts out, be communicated with disconnection between return gas channel 40d and the release gas channel 40c, be in filling position container 6 oral area with unload plenum chamber 8 and be not communicated with.Material returning valve 34 links to each other with liquid outlet communication passage 40b with release gas channel 40c.When material returning valve 34 is opened, release gas channel 40c and liquid outlet communication passage 40b communicate with each other, make and unload plenum chamber 8 and be communicated with liquid outlet 45 (filling tube 21 upper ends), the gases in the container 6 can flow into through filling tube 21, liquid outlet communication passage 40b, material returning valve 34 and release gas channel 40c unload plenum chamber 8; When material returning valve 34 is closed, be communicated with disconnection between release gas channel 40c and the liquid outlet communication passage 40b.Filling valve 32 links to each other with back pressure flow passage 40a with return gas channel 40d.When filling valve 32 was opened, return gas channel 40d and back pressure flow passage 40a communicated with each other, and the oral area of the container 6 that is positioned at filling position is communicated with back pressure air chamber 7; When filling valve 32 is closed, be communicated with disconnection between return gas channel 40d and the back pressure flow passage 40a.
Be filled to container 6 in order to accommodate liquid material 24 with the liquid material 24 that is arranged in the material cylinder 22 of the back pressure gas 23 (this back pressure gas 23 comes from back pressure air chamber 7) on the liquid level, can carry out can according to following steps:
At first, make back pressure gas 23 under the back pressure effect, only flow into container 6 from gas passage at the oral area connection container 6 of container 6, thus make in the container 6 gas from above-mentioned gas passage reservoir channel amount discharge container 6 (step a) independently mutually.
Before can, all air valves of air-valve assembly 30 are closed, and liquid valve 2 is in closed condition.When can, lifting container 6 (for example utilizing container jacking system 5 shown in Figure 1) at first, make filling tube 21 insert containers 6 and make container 6 oral area sealed engagement liquid valve 2, be positioned at the lower surface around the liquid outlet 45, this moment, container 6 was positioned at filling position, the oral area of container 6 is connected with return gas channel 40d, as shown in Figure 2.Open filling valve 32 and material returning valve 34 then.At this moment, back pressure flow passage 40a is communicated with return gas channel 40d, and release gas channel 40c is communicated with liquid outlet communication passage 40b.Since the air pressure in the back pressure air chamber that links to each other with back pressure flow passage 40a 7 be higher than link to each other with release gas channel 40c unload the interior air pressure of plenum chamber 8, and container 6 and liquid valve 2, be positioned at liquid outlet 45 lower surface sealed engagement on every side, therefore the back pressure gas 23 in the back pressure air chamber 7 can only be through back pressure flow passage 40a under the back pressure effect, filling valve 32, the oral area of return gas channel 40d and container 6 flows into container 6, that is to say the back pressure flow passage 40a among Fig. 3, filling valve 32 and return gas channel 40d have constituted the gas passage of above-mentioned oral area connection container 6 at container 6.Simultaneously, the gas in the container 6 is through filling tube 21 (being above-mentioned reservoir channel) amount discharge container 6, remains in liquid material 24 in the filling tube 21 also along with the gas in the container 6 amount discharge container 6 together.For the gas slowly in the container 6 is discharged, the gas in the container 6 is discharged.Particularly, container 6 interior gases are discharged to through filling tube 21 (reservoir channel), liquid outlet communication passage 40b, material returning valve 34 and release gas channel 40c and unload plenum chamber 8.
Stop described gas amount discharge container 6 (step b) through after the schedule time.In specific embodiment, this step b can be by realizing through closing material returning valve 34 after the schedule time.This moment release gas channel 40c with liquid outlet communication passage 40b between be communicated with disconnection, and return gas channel 40d still keeps being communicated with back pressure flow passage 40a, therefore back pressure gas 23 can continue to flow into container 6 through back pressure flow passage 40a, filling valve 32 and return gas channel 40d, thereby container 6 is carried out backpressure operation.
Then, in container 6, reach under the back pressure state via the height that can not make liquid material 24 bubbings to container 6 in the filling liquid material 24 (step c) of above-mentioned reservoir channel in distance container 6 bottoms.In this step, air pressure in the container 6 equals the air pressure (also equaling the air pressure of back pressure gas in the material cylinder 22 simultaneously) in the back pressure air chamber 7, liquid valve 2 is opened, the height that can not make liquid material 24 bubbings in the bottom of distance container 6 flows into container 6 to liquid material 24 in the material cylinder 22 through liquid valve 2 (liquid outlet 45) and filling tube 21 (reservoir channel), the back pressure gas of liquid level top is compressed in the container 6, thereby the oral area through container 6 flows into return gas channel 40d, and flows back to back pressure air chamber 7 via return gas channel 40d, filling valve 32 and back pressure flow passage 40a.Like this, can guarantee in container 6, to reach under the state of back pressure filling liquid material 24 in container 6.
Then, when the liquid material in the container 6 24 arrives predetermined altitude, stop to container 6 filling liquid materials 24 (step d).In specific embodiment, this steps d can be by closing filling valve 32 and 2 realizations of liquid valve.
At last, make residue back pressure gas 23 amount discharge containers 6 in the container 6, thereby make the air pressure in the container 6 drop to barometric pressure (step e).Preferably make residue back pressure gas 23 amount discharge containers 6 in the container 6 by release.As specific embodiment, can make pressure-relief valve 35 open the schedule time.When pressure-relief valve 35 was opened, return gas channel 40d was connected with release gas channel 40c.Because the air pressure of the residue back pressure gas in the container 6 is greater than the air pressure that unloads in the plenum chamber 8, therefore but residue back pressure gas cooled via return air passage 40d, pressure-relief valve 35 and the release gas channel 40c in the container 6 flows to and unloads plenum chamber 8, makes that the air pressure in the container 6 slowly drops to barometric pressure.Certainly, the oral area of container 6 directly is communicated with atmosphere and the residue back pressure gas amount discharge container 6 that container 6 is interior.
After can is finished, container 6 is carried out the bottle outlet operation, for example, can utilize container jacking system 5 that container 6 is descended, thereby leave the lower surface of liquid valve 2.
Further, long tube liquid filling device 1 can comprise that also effective air communication crosses the flood irrigation valve 33 of sectional area less than filling valve 32.Wherein, " effectively air communication cross sectional area " refers to the effective cross sectional area that the gas channel of air valve can make air communication cross, and its numerical value depends primarily on the minimum sectional area of gas channel in the air valve and the apparent order and condition of gas channel.Under the certain situation of the draught head at the gas channel two ends of air valve, effectively to cross sectional area more little for air communication, and the gas volume that flows through air valve in the unit time is more little, and effectively to cross sectional area big more for air communication, and the gas volume that flows through air valve in the unit time is big more.Generally speaking, under the identical situation of the apparent order and condition of gas channel, the minimum sectional area of gas channel is more little, and it is more little that effective air communication is crossed sectional area, and the minimum sectional area of gas channel is big more, and it is big more that effective air communication is crossed sectional area.Under the identical situation of minimum sectional area, the surface of gas channel is smooth more, and it is big more that then effective air communication is crossed sectional area, otherwise then more little.
Correspondingly, among the above-mentioned steps c in container 6 the filling liquid material may further include: fast can and flood irrigation dress, before liquid material 24 reaches predetermined altitude, earlier carry out fast can a period of time to adorn fast speed than flood irrigation, carry out flood irrigation dress a period of time with the speed slower again, till liquid material 24 arrives predetermined altitude than fast can.In specific embodiment, above-mentioned fast can and flood irrigation dress can be closed after 32 one period schedule time of unlatching by made filling valve earlier before closing liquid valve 2, and then 33 unlatching a period of times of flood irrigation valve are realized.Because effective air communication of flood irrigation valve 33 is crossed sectional area and crossed sectional area less than effective air communication of filling valve 32, flood irrigation valve 33 open periods flow back to the air-flow velocity of the air-flow velocity of back pressure air chamber 7 less than filling valve 32 open periods from container 6.Correspondingly, flow into the flow stream velocity of the flow stream velocity of container 6 at flood irrigation valve 33 open periods less than filling valve 32 open periods.What filling valve 32 open periods carried out is fast can, and what flood irrigation valve 33 open periods carried out is the flood irrigation dress.By the flood irrigation dress is set, can further improve the level accuracy of can after fast can.
Selectively, long tube liquid filling device 1 also can further comprise exhaust-valve 31, and this exhaust-valve 31 can be unlocked and be communicated with return gas channel 40d and liquid outlet communication passage 40b and be closed and disconnect being communicated with between return gas channel 40d and the liquid outlet communication passage 40b.
Corresponding with it, can further make the remaining liq material 24 in the reservoir channel flow into (step f) in the container 6 afterwards in step (e).This step f for example can make exhaust-valve 31 open the schedule time during container 6 bottle outlets when promptly container 6 descends.When exhaust-valve 31 was opened, return gas channel 40d was communicated with liquid outlet communication passage 40b, makes the pressure of filling tube 21 tops equal barometric pressure, the container 6 that the remaining liq material 24 in the filling tube 21 is descending because of deadweight falls into.So can reduce the liquid material 24 that remains in the filling tube 21, and then reduce the waste of liquid material 24.
In addition, each air valve of the air-valve assembly 30 of long tube liquid filling device 1, be that exhaust-valve 31, filling valve 32, flood irrigation valve 33, material returning valve 34 and pressure-relief valve 35 can be configured to pneumatic valve, like this can be so that simplify the physical construction and the volume that dwindles filling apparatus of filling apparatus.
As shown in Figure 3, liquid valve 2 comprises valve seat 13, spool 15 and the spool actuation gear 11 of hollow.Liquid outlet 45 is formed on the bottom of valve seat 13, and is communicated with the hollow space of valve seat 13 and the outside of valve seat 13.The hollow space of connection valve seat 13 and the flow passage 16 of material cylinder 22 can further be set on valve seat 13 tops.Spool 15 is arranged in the hollow space of valve seat 13 movably, and spool 15 is moveable to open position of opening liquid outlet 45 and the off position of closing liquid outlet 45.When spool actuation gear 11 makes spool 15 move to off position, make liquid leakproof fit between the inner peripheral surface of the outer peripheral face of spool 15 1 ends and liquid outlet 45, liquid valve 2 is closed, and liquid material 24 can't flow out from liquid outlet 45.When spool actuation gear 11 makes spool 15 motion open positions, form the liquid ebb interval between the outer peripheral face of spool 15 1 ends and the inner peripheral surface of liquid outlet 45, liquid valve 2 is unlocked, and liquid material 24 can flow out through this liquid ebb interval.Spool actuation gear 11 further comprises the spool actuating mechanism 11a that spool 15 can be pushed to off position and spool 15 can be pushed to the reset components 11b of open position.In the embodiment shown in fig. 3, spool actuating mechanism 11a is the cylinder 11a that is arranged on spool 15 tops and has the piston rod of extended and withdrawal.The piston rod of cylinder 11a is positioned at the top of spool 15 and points to the end face of spool 15.Reset components 11b is the compression spring that is set in spool 15 upper ends.When the piston rod as the cylinder 11a of spool actuating mechanism 11a stretches out, the end face of piston rod pushing spool 15, the reset force that makes progress that can overcome reset components 11b is pushed to off position downwards with spool 15.When the piston rod of cylinder 11a was withdrawn, piston rod broke away from the end face of spool 15, and the reset force of Bringing-back mechanism 12 makes spool 15 be moved upwards up to the open position.
Obviously, spool actuating mechanism 11a is not limited to cylinder 11a shown in Figure 3, also it can be configured to the unidirectional promotion member that cam, crank block etc. can promote spool 15 downwards.Reset components 11b also is not limited to compression spring shown in Figure 3, can also adopt the extension spring that is arranged on spool 15 over top or as the elastic element of other type of compression spring and extension spring, for example packing ring of sheet spring, air bellow, elastically deformable etc.Certainly, other can make the mechanism of spool 15 up-and-down movements, and for example shift fork etc. also can be used as spool actuation gear 11 and is used for the present invention.
As shown in Figure 3, valve seat 13 may further include upper valve base 13a and lower valve base 13b, wherein is formed with hollow space in the upper valve base 13a, and liquid outlet 45 is formed in the lower valve base 13b, preferably makes liquid outlet 45 and hollow space coaxial.Further preferably mutually the fitting surface of leakproof fit liquid outlet 45 of liquid and spool 15 1 ends (for example lower end) form the taper that diameter reduces gradually along downward direction respectively, can further guarantee being sealed and matched between liquid outlet 45 and spool 15 1 ends like this.
As shown in Figure 3, locating dowel pin 51 can further be set on the body of rod of spool 15.The intersect vertical axis of the axis of this locating dowel pin 51 and spool 15, and the length of this locating dowel pin 51 is corresponding with the inside diameter of the hollow space of valve seat 13.When spool 15 moved in the hollow space of valve seat 13, the two ends of this locating dowel pin 51 contacted with the inwall of hollow space, can make spool 15 and hollow space coaxial in essence, had limited the motion that departs from the hollow space axis of spool 15.
As shown in Figure 3, long tube liquid filling device 1 also can further comprise aligning gear 10, and this aligning gear 10 is sealingly connected to lower surface valve seat 13, that surround liquid outlet 45.Preferably sealing arrangement 19 is set, with the leak tightness between the above-mentioned lower surface that guarantees aligning gear 10 and valve seat 13 in the junction of aligning gear 10 and the above-mentioned lower surface of valve seat 13.Sealing between the lower surface of aligning gear 10 of the present invention and valve seat 13 can be guaranteed by prior adjustment, and the aligning gear of prior art need utilize lifting apparatus to make its lower surface that is pressed in valve seat guarantee leak tightness between aligning gear and the valve seat lower surface when can, and therefore fixed type aligning gear of the present invention is more reliable than aligning gear used in the prior art.
The upper end of filling tube 21 is passed through aligning gear 10 and is tightly connected with liquid outlet 45, filling tube 21 is passed down through aligning gear 10 and stretches out, and makes to be formed on the gap that makes return gas channel 40d and container 6 internal communication under the bottling condition between the outer peripheral face of filling tube 21 and the aligning gear 10.Further, preferably aligning gear 10 and valve seat 13, the sealing that can connect with container 6 oral areas is set between the lower surface of liquid outlet 45, for example the bottleneck sealing 19, the oral area that is positioned at the container 6 of filling position can be connected on the sealing (bottleneck sealing 19), thereby has further guaranteed the sealing between the lower surface of container 6 oral areas and valve seat 13.
Long tube liquid filling device 1 of the present invention can comprise further that also being used to control spool 15 moves to open position and the control setup (not shown) that moves to off position.Certainly, also can utilize this control setup to come the action (opening and closing) of each air valve of one control air valve assembly 30.This control setup is preferably the programmable control setup, can adapt to the can of all kinds of containers by the control program that changes this control setup.For example, opening and closing by changing liquid valve 2 and each air valve constantly and the size parameters such as (for example length) of open period, filling tube 21 just can adapt to the can of different vessels, and need not to change other physical construction of long tube liquid filling device 1, improved the adaptive capacity of long tube liquid filling device 1.
As illustrated in fig. 1 and 2, the hollow space of valve seat 13 is linked to each other with material cylinder 22 via electromagnetic flow meter 4.This electromagnetic flow meter 4 is used to measure the flow of the liquid material 24 of the hollow space that flows into valve seat 13.When electromagnetic flow meter 4 detects the liquid material 24 that flows into hollow space and reaches predetermined value, control setup to long tube liquid filling device 1 sends measurement signal, by control setup control spool actuation gear 11 spool 15 is moved to off position, thereby stop can.Utilize this configuration, can detect the amount of the liquid material 24 of the hollow space that flows into valve seat 13 in real time, thereby and when flow quantity reaches predetermined value control spool 15 move to off position and close liquid valve 2, can control filling accuracy more accurately like this.
Long tube liquid filling device that above embodiment provides 1 is erect type, i.e. the long tube liquid filling device that vertically moves of spool 15.Yet those skilled in the art can expect at an easy rate that disclosed structure and method also can be used for the horizontal type long tube liquid filling device of spool along continuous straight runs motion.
Although the present invention will be described in conjunction with the embodiments above, the present invention is not limited to the embodiment that is introduced, and can also make various variations and combination under the prerequisite that does not depart from the scope of the present invention.
Claims (10)
1. a long tube liquid filling device (1), be used for the liquid material (24) of material cylinder (22) is filled in the container (6), this long tube liquid filling device (1) comprising: can stretch in the container (6) that is in filling position and the filling tube (21) of the described liquid material of can (24) in the container (6), be provided with the liquid valve (2), the gas channel (40) that seal the liquid outlet (45) that links to each other with described filling tube (21) upper end, and be used for the air-valve assembly (30) that connected sum disconnects described gas channel (40), it is characterized in that:
Described gas channel (40) comprising:
Return gas channel (40d), this return gas channel (40d) points to container (6) connection container (6) by described liquid outlet (45) from container (6) oral area that is positioned at filling position;
With unload the release gas channel (40c) that plenum chamber (8) is connected,
The back pressure flow passage (40a) that is connected with back pressure air chamber (7) and
Point to the liquid outlet communication passage (40b) that described filling tube (21) in be communicated with described filling tube (21) from described liquid outlet (45) through described filling tube (21) upper end by described liquid outlet (45),
Described air-valve assembly (30) comprising:
Pressure-relief valve (35), this pressure-relief valve (35) can be unlocked and be communicated with described return gas channel (40d) and described release gas channel (40c), and are closed and disconnect being communicated with between described return gas channel (40d) and the described release gas channel (40c),
Filling valve (32), this filling valve (32) can be unlocked and be communicated with described return gas channel (40d) and described back pressure flow passage (40a), and be closed disconnect between described return gas channel (40d) and the described back pressure flow passage (40a) be communicated with and
Material returning valve (34), this material returning valve (34) can be unlocked and be communicated with described liquid outlet communication passage (40b) and described release gas channel (40c), and is closed and disconnects being communicated with between described liquid outlet communication passage (40b) and the described release gas channel (40c).
2. long tube liquid filling device as claimed in claim 1 (1) is characterized in that, described air-valve assembly (30) also comprises flood irrigation valve (33), and effective air communication of this flood irrigation valve (33) is crossed sectional area and crossed sectional area less than effective air communication of described filling valve (32),
Wherein said flood irrigation valve (33) is existed side by side each other with described filling valve (32), is communicated with described return gas channel (40d) and described back pressure flow passage (40a) at described flood irrigation valve (33) during container (6) filling liquid material (24) with described filling valve (32) logical disconnectedly.
3. long tube liquid filling device as claimed in claim 1 or 2 (1), it is characterized in that, described air-valve assembly (30) also comprises exhaust-valve (31), and this exhaust-valve (31) can be unlocked and be communicated with described return gas channel (40d) and described liquid outlet communication passage (40b) and be closed and disconnect being communicated with between described return gas channel (40d) and the described liquid outlet communication passage (40b).
4. long tube liquid filling device as claimed in claim 3 (1) is characterized in that, described exhaust-valve (31), filling valve (32), flood irrigation valve (33), material returning valve (34) and pressure-relief valve (35) are pneumatic valve.
5. long tube liquid filling device as claimed in claim 1 (1) is characterized in that,
Described liquid valve (2) comprising:
The valve seat of hollow (13), wherein said liquid outlet (45) is formed on the bottom of described valve seat (13), and is communicated with the outside of the hollow space and the described valve seat (13) of described valve seat (13);
Be arranged on the spool (15) in the described hollow space movably, described spool (15) is moveable to open position of opening described liquid outlet (45) and the off position of closing described liquid outlet (45); With
Be used for described spool (15) is moved to the spool actuation gear (11) of described open position and off position.
6. long tube liquid filling device as claimed in claim 5 (1), it is characterized in that, described long tube liquid filling device (1) further comprises aligning gear (10), and this aligning gear (10) is sealingly connected to lower surface described valve seat (13), that surround described liquid outlet (45)
Under bottling condition, the oral area of described container (6) is housed in this aligning gear (10) and with respect to lower surface described valve seat (13), that surround described liquid outlet (45) and seals;
The upper end of wherein said filling tube (21) is passed through described aligning gear (10) and is tightly connected with described liquid outlet (45), described filling tube (21) is passed down through described aligning gear (10) and stretches out, and makes to be formed on the gap that makes described return gas channel (40d) and container (6) internal communication under the bottling condition between the outer peripheral face of described filling tube (21) and the described aligning gear (10).
7. as claim 5 or 6 described long tube liquid filling devices (1), it is characterized in that described long tube liquid filling device (1) also comprises and be used to control the control setup that described spool (15) moves to described open position and off position,
The hollow space of described valve seat (13) links to each other with described material cylinder via electromagnetic flow meter (4), described electromagnetic flow meter (4) is used to measure the flow of the liquid material (24) that flows into described hollow space, when the amount that measures the liquid material (24) that flows into described hollow space when described electromagnetic flow meter (4) reached predetermined value, described control setup was controlled described spool (15) and is moved to described off position.
8. one kind is filled to method in the container (6) with the liquid material (24) in the material cylinder (22), accommodate liquid material (24) in the described material cylinder (22) and be positioned at back pressure gas on the liquid level, this back pressure gas comes from back pressure air chamber (7), and this method may further comprise the steps:
(a) make back pressure gas under the back pressure effect, only flow into container (6) from gas passage at the oral area connection container (6) of container (6), thus make in the container (6) gas from described gas passage reservoir channel amount discharge container (6) independently mutually;
(b) stop described gas amount discharge container (6) through after the schedule time;
(c) in container (6), reach under the back pressure state via the height that can not make described liquid material (24) bubbing to container (6) in the filling liquid material (24) of described reservoir channel in distance container (6) bottom;
(d) liquid material (24) in container (6) stops to container (6) filling liquid material (24) when reaching predetermined altitude;
(e) make the interior residue back pressure gas amount discharge container (6) of container (6), thereby make the air pressure in the container (6) drop to barometric pressure.
9. method as claimed in claim 8 is characterized in that,
Gas amount discharge container (6) in the step (a) and the residue back pressure gas amount discharge container (6) in the step (e) are undertaken by release.
10. method as claimed in claim 8 is characterized in that,
In the described step (c) in container (6) operation of filling liquid material (24) further comprise: fast can and flood irrigation dress, before liquid material (24) reaches predetermined altitude, earlier carry out fast can a period of time to adorn fast speed than flood irrigation, carry out flood irrigation dress a period of time with the speed slower again, till liquid material (24) arrives predetermined altitude than fast can.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200910195560 CN102020227B (en) | 2009-09-11 | 2009-09-11 | Long-tube liquid filling device and filling method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200910195560 CN102020227B (en) | 2009-09-11 | 2009-09-11 | Long-tube liquid filling device and filling method |
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| CN102020227A true CN102020227A (en) | 2011-04-20 |
| CN102020227B CN102020227B (en) | 2013-02-13 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 200910195560 Active CN102020227B (en) | 2009-09-11 | 2009-09-11 | Long-tube liquid filling device and filling method |
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| CN102718177A (en) * | 2012-07-10 | 2012-10-10 | 深圳市步先包装机械有限公司 | Quantitative filling method |
| CN102910570A (en) * | 2012-11-12 | 2013-02-06 | 南京乐惠轻工装备制造有限公司 | Electronic type liquid filling device |
| CN103626100A (en) * | 2012-08-27 | 2014-03-12 | 山东工大机械有限公司 | Long-tube liquid-level-determined filling valve |
| CN110734028A (en) * | 2018-07-19 | 2020-01-31 | 南京恒昌包装机械有限公司 | vacuum long pipe valve and working method thereof |
| CN111056518A (en) * | 2018-10-16 | 2020-04-24 | 萨克米饮料股份公司 | Filling machine for hot filling |
| CN112594437A (en) * | 2020-11-13 | 2021-04-02 | 机械工业第九设计研究院有限公司 | Novel wax injection pneumatic control valve and application |
| CN113002825A (en) * | 2021-02-23 | 2021-06-22 | 蔡苗苗 | Drop irrigation type feeding mechanism for sweet wormwood herb extracting solution in skin care product |
| CN114195067A (en) * | 2021-12-07 | 2022-03-18 | 云南靖创液态金属热控技术研发有限公司 | Liquid filling valve and filling device for loop pipeline |
| CN116443797A (en) * | 2023-04-23 | 2023-07-18 | 苏州冠礼科技有限公司 | Full-automatic chemical filling equipment |
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| DE2234120C3 (en) * | 1972-07-12 | 1979-08-09 | Seitz-Werke Gmbh, 6550 Bad Kreuznach | Filling element with long downpipe for multi-chamber counter pressure filling machines |
| DE3008386C2 (en) * | 1980-03-05 | 1986-01-16 | Seitz Enzinger Noll Maschinenbau Ag, 6800 Mannheim | Filling element for counter pressure filling machines |
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| CN102718177B (en) * | 2012-07-10 | 2016-06-15 | 深圳市步先包装机械有限公司 | quantitative filling method |
| CN103626100A (en) * | 2012-08-27 | 2014-03-12 | 山东工大机械有限公司 | Long-tube liquid-level-determined filling valve |
| CN102910570A (en) * | 2012-11-12 | 2013-02-06 | 南京乐惠轻工装备制造有限公司 | Electronic type liquid filling device |
| CN102910570B (en) * | 2012-11-12 | 2014-03-26 | 南京乐惠轻工装备制造有限公司 | Electronic type liquid filling device |
| CN110734028A (en) * | 2018-07-19 | 2020-01-31 | 南京恒昌包装机械有限公司 | vacuum long pipe valve and working method thereof |
| CN111056518A (en) * | 2018-10-16 | 2020-04-24 | 萨克米饮料股份公司 | Filling machine for hot filling |
| CN112594437A (en) * | 2020-11-13 | 2021-04-02 | 机械工业第九设计研究院有限公司 | Novel wax injection pneumatic control valve and application |
| CN113002825A (en) * | 2021-02-23 | 2021-06-22 | 蔡苗苗 | Drop irrigation type feeding mechanism for sweet wormwood herb extracting solution in skin care product |
| CN114195067A (en) * | 2021-12-07 | 2022-03-18 | 云南靖创液态金属热控技术研发有限公司 | Liquid filling valve and filling device for loop pipeline |
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Address after: 211151 No. 600 General South Road, Jiangning Development Zone, Nanjing City, Jiangsu Province Patentee after: Nanjing Le Hui Fenach Packaging Machinery Co., Ltd. Address before: 211151 No. 600 General South Road, Jiangning Development Zone, Nanjing City, Jiangsu Province Patentee before: Nanjing Lehui Light Industry Equipment Manufacturing Co., Ltd. |