CN102020227B - Long-tube liquid filling device and filling method - Google Patents
Long-tube liquid filling device and filling method Download PDFInfo
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- CN102020227B CN102020227B CN 200910195560 CN200910195560A CN102020227B CN 102020227 B CN102020227 B CN 102020227B CN 200910195560 CN200910195560 CN 200910195560 CN 200910195560 A CN200910195560 A CN 200910195560A CN 102020227 B CN102020227 B CN 102020227B
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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 liquid-in-long-pipe filling and packaging process, relate in particular to a kind of for will be such as liquid-in-long-pipe filling and the packaging process to container such as the filled with gas-containing liquid of beer etc.
Background technology
Liquid filling device mainly contains two kinds of short tube liquid filling device and liquid-in-long-pipe fillings.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 causes gas evolution and form foam, thereby affect filling accuracy.In addition, in order to realize isobar filling, the short tube liquid filling device needs at first to container vacuum-pumping.When container is the yielding thin-walled pressure vessel of appearance such as 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 evolution.In addition, in the external long-piping mechanical liquid loading valve that Chinese utility model patent CN2818447Y proposes, 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 utilized filling tube to spray CO before filling liquid in container
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 affect 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 of spray in the container
2Gas falls into container, has aggravated the pollution of container and on the impact of filling accuracy.
Summary of the invention
For the problem that above-mentioned existing liquid-in-long-pipe filling exists, task of the present invention is to provide a kind of liquid-in-long-pipe filling and packaging process, and this liquid-in-long-pipe filling and packaging process can improve the precision of filling liquid.
For realizing above-mentioned task, the invention provides a kind of liquid-in-long-pipe filling, be used for filling liquid with the material cylinder in container, this liquid-in-long-pipe filling 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 liquid valve, the gas channel of the liquid outlet that links to each other with the upper end sealing of described filling tube and the air-valve assembly that disconnects described gas channel for connected sum.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 the release gas channel that unloads plenum chamber and be connected, the back pressure flow passage that is connected with the back pressure air chamber, and point to the liquid outlet communicating passage that described filling tube in be communicated with 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 to be communicated with described return gas channel and described release gas channel, and are closed to disconnect being communicated with between described return gas channel and the described release gas channel; Filling valve, this filling valve can be unlocked to be communicated with described return gas channel and described back pressure flow passage, and are closed to 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 to be communicated with described liquid outlet communicating passage and described release gas channel, and is closed to disconnect being communicated with between described liquid outlet communicating 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 the method may further comprise the steps:
(a) make back pressure gas under the back pressure effect, only flow into container from the 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 described reservoir channel at the height that can not make described liquid bubbing of distance container bottom filling liquid in the container;
(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 liquid-in-long-pipe filling 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 liquid-in-long-pipe filling shown in Figure 1 and bottle placer;
Fig. 3 has shown the constructional drawing of liquid-in-long-pipe filling shown in Figure 1.
The specific embodiment
Fig. 1 and 2 shows respectively 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 liquid-in-long-pipe filling 1 of the present invention when non-filling position and filling position.Fig. 3 shows the structural representation of liquid-in-long-pipe filling 1 of the present invention.
Liquid-in-long-pipe filling 1 is used for the liquid material 24 of material cylinder 22 is filled in the container 6.As shown in Figure 3, liquid-in-long-pipe filling 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 container 6 interior certain depths, so that liquid material 24 is in the height can road container 6 that can not make liquid material 24 bubbings of distance container 6 bottoms.
Liquid-in-long-pipe filling 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 to allow liquid material 24 to be filled to container 6 neutralizations and be closed to stop above-mentioned filling liquid.
Liquid-in-long-pipe filling 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 the release gas channel 40c that unloads plenum chamber 8 and be connected; The back pressure flow passage 40a that is connected with back pressure air chamber 7; With the liquid outlet communicating passage 40b that points to filling tube 21 interior connection filling tubes 21 by liquid outlet 45 from liquid outlet 45 through filling tube 21 upper ends.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 communicating 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, liquid-in-long-pipe filling 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 to be communicated with return gas channel 40d and release gas channel 40c, and are closed to 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 to be communicated with return gas channel 40d and back pressure flow passage 40a, and are closed to 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 to be communicated with liquid outlet communicating passage 40b and release gas channel 40c, and is closed to disconnect being communicated with between liquid outlet communicating 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, so that be positioned at filling position container 6 oral area with unload plenum chamber 8 fluids and be communicated with, the gases in the container 6 can flow 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 communicating passage 40b with release gas channel 40c.When material returning valve 34 is opened, release gas channel 40c and liquid outlet communicating 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 communicating 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 communicating 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 the gas passage at the oral area connection container 6 of container 6, thus make in the container 6 gas from the above-mentioned gas passage mutually independently reservoir channel amount discharge container 6 (step a).
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.Then open filling valve 32 and material returning valve 34.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 communicating passage 40b.Since the air pressure in the back pressure air chamber 7 that links to each other with back pressure flow passage 40a 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 consisted of 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 together amount discharge container 6.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 communicating 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 communicating 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 above-mentioned reservoir channel at the height that can not make liquid material 24 bubbings of distance container 6 bottoms to container 6 interior filling liquid materials 24 (step c).In this step, air pressure in the container 6 equals the air pressure (also equaling the air pressure of material cylinder 22 interior back pressure gases 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 container 6 interior liquid level tops is compressed, thereby the oral area through container 6 flows into return gas channel 40d, and via return gas channel 40d, filling valve 32 and back pressure flow passage 40a flow back to back pressure air chamber 7.Like this, can guarantee in container 6, to reach under the state of back pressure to container 6 interior filling liquid materials 24.
Then, when the liquid material 24 in the container 6 arrives predetermined altitude, stop to container 6 filling liquid materials 24 (steps 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 unload plenum chamber 8, so that the air pressure slow decreasing in the container 6 is 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, liquid-in-long-pipe filling 1 can comprise that also effective air-flow is by the flood irrigation valve 33 of sectional area less than filling valve 32.Wherein, " effectively air-flow pass through sectional area " refers to the effective cross sectional area that the gas channel of air valve can make air-flow pass through, 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.In the certain situation of the draught head at the gas channel two ends of air valve, effectively air-flow is less by sectional area, and the gas volume that flows through air valve in the unit time is less, and effectively air-flow is larger by sectional area, and the gas volume that flows through air valve in the unit time is larger.Generally speaking, in the identical situation of the apparent order and condition of gas channel, the minimum sectional area of gas channel is less, and effectively air-flow is less by sectional area, and the minimum sectional area of gas channel is larger, and effectively air-flow is larger by sectional area.In the identical situation of minimum sectional area, the surface of gas channel is more smooth, and then effectively air-flow is larger by sectional area, otherwise then less.
Correspondingly, may further include to container 6 interior filling liquid materials among the above-mentioned steps c: fast can and flood irrigation dress, before liquid material 24 reaches predetermined altitude, first carry out fast can a period of time to fill fast speed than flood irrigation, carry out flood irrigation dress a period of time with the speed slower than fast can again, until liquid material 24 arrives till the predetermined altitude.In specific embodiment, above-mentioned fast can and flood irrigation dress can be closed after 32 one period schedule time of unlatching by made first filling valve before closing liquid valve 2, and then 33 unlatching a period of times of flood irrigation valve are realized.Since effective air-flow of flood irrigation valve 33 by sectional area less than effective air-flow of filling valve 32 by sectional area, flood irrigation valve 33 open periods flow back to the air-flow velocity of back pressure air chamber 7 less than the air-flow velocity of filling valve 32 open periods from container 6.Correspondingly, flow into the flow stream velocity of container 6 less than the flow stream velocity of filling valve 32 open periods at flood irrigation valve 33 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, liquid-in-long-pipe filling 1 also can further comprise exhaust-valve 31, and this exhaust-valve 31 can be unlocked to be communicated with return gas channel 40d and liquid outlet communicating passage 40b and be closed and disconnect being communicated with between return gas channel 40d and the liquid outlet communicating passage 40b.
Corresponding with it, can further in step (e) the remaining liq material 24 in the reservoir channel be flowed in the container 6 (step f).This step f for example can during container 6 bottle outlets, make exhaust-valve 31 open the schedule time when namely container 6 descends.When exhaust-valve 31 was opened, return gas channel 40d was communicated with liquid outlet communicating passage 40b, so that the pressure of filling tube 21 tops equals barometric pressure, and the container 6 that the remaining liq material 24 in the filling tube 21 is descending because 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 liquid-in-long-pipe filling 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 the open position of opening liquid outlet 45 and the off position of closing liquid outlet 45.When spool actuation gear 11 made spool 15 move to off position, the liquid-tight cooperation between the outer peripheral face that makes spool 15 1 ends and the inner peripheral surface of liquid outlet 45, liquid valve 2 was closed, and liquid material 24 can't flow out from liquid outlet 45.When spool actuation gear 11 makes spool 15 motion open position, 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 retraction.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 Compress 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 retracted, 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 Compress 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 Compress Spring and extension spring, such as packing ring of sheet spring, air bellow, elastically deformable etc.Certainly, other can make the mechanism of spool 15 up-and-down movements, also can be used as spool actuation gear 11 such as shift fork etc. 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 the leakproof fit liquid outlet 45 of liquid and spool 15 1 ends (for example lower end) form respectively the taper that diameter reduces gradually along downward direction, can further guarantee like this being sealed and matched between liquid outlet 45 and spool 15 1 ends.
As shown in Figure 3, can be further at the body of rod of spool 15 locating dowel pin 51 be set.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, liquid-in-long-pipe filling 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 in the junction of aligning gear 10 and the above-mentioned lower surface of valve seat 13 sealing arrangement 19 is set, with the leak tightness between the above-mentioned lower surface that guarantees aligning gear 10 and 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 to 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, so that 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 bottle sealing 19, the oral area that is positioned at the container 6 of filling position can be connected on the sealing (bottle sealing 19), thereby has further guaranteed the sealing between the lower surface of container 6 oral areas and valve seat 13.
Liquid-in-long-pipe filling 1 of the present invention also can further comprise the control setup (not shown) that moves to the open position and move to off position for controlling spool 15.Certainly, also can utilize this control setup to control the action of each air valve of air-valve assembly 30 (opening and closing).This control setup is preferably the programmable control setup, can adapt to by the control program that changes this control setup the can of all kinds of containers.For example, opening and closing by changing liquid valve 2 and each air valve constantly and the parameters such as size (such as 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 liquid-in-long-pipe filling 1, improved the adaptive capacity of liquid-in-long-pipe filling 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 for the flow of the liquid material 24 of measuring 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 liquid-in-long-pipe filling 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 in real time the amount of the liquid material 24 of the hollow space that flows into valve seat 13, thereby and when flow quantity reaches predetermined value control spool 15 move to off position and close liquid valve 2, can control more accurately like this precision of can.
Liquid-in-long-pipe filling that above embodiment provides 1 is erect type, i.e. the liquid-in-long-pipe filling 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 liquid-in-long-pipe filling of spool along continuous straight runs motion.
Although the present invention will be described in conjunction with the embodiments for the above, the present invention is not limited to the embodiment that introduces, and can also make a variety of changes and make up under the prerequisite that does not depart from the scope of the present invention.
Claims (11)
1. a liquid-in-long-pipe filling (1), be used for the liquid material (24) of material cylinder (22) is filled in the container (6), this liquid-in-long-pipe filling (1) comprising: can stretch into the interior also described liquid material of can (24) of the container (6) that is in filling position to the interior filling tube (21) of container (6), be provided with the liquid valve (2) of the liquid outlet (45) that links to each other with the sealing of described filling tube (21) upper end, gas channel (40), 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 the release gas channel (40c) that unloads plenum chamber (8) and be connected,
The back pressure flow passage (40a) that is connected with back pressure air chamber (7), and
Point to the liquid outlet communicating 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 to be communicated with described return gas channel (40d) and described release gas channel (40c), and be closed to 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 to be communicated with described return gas channel (40d) and described back pressure flow passage (40a), and be closed to disconnect being communicated with between described return gas channel (40d) and the described back pressure flow passage (40a), and
Material returning valve (34), this material returning valve (34) can be unlocked to be communicated with described liquid outlet communicating passage (40b) and described release gas channel (40c), and is closed to disconnect being communicated with between described liquid outlet communicating passage (40b) and the described release gas channel (40c).
2. liquid-in-long-pipe filling as claimed in claim 1 (1), it is characterized in that, described air-valve assembly (30) also comprises flood irrigation valve (33), and effective air-flow of this flood irrigation valve (33) passes through sectional area by sectional area less than effective air-flow 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. liquid-in-long-pipe filling 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 to be communicated with described return gas channel (40d) and described liquid outlet communicating passage (40b) and be closed and disconnect being communicated with between described return gas channel (40d) and the described liquid outlet communicating passage (40b).
4. liquid-in-long-pipe filling as claimed in claim 3 (1) is characterized in that, described exhaust-valve (31), filling valve (32), material returning valve (34) and pressure-relief valve (35) are pneumatic valve.
5. liquid-in-long-pipe filling as claimed in claim 2 (1) is characterized in that, described flood irrigation valve (33) is pneumatic valve.
6. liquid-in-long-pipe filling 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 hollow space and the described valve seat (13) of described valve seat (13);
Be arranged on movably the spool (15) in the described hollow space, described spool (15) is moveable to the 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.
7. liquid-in-long-pipe filling as claimed in claim 6 (1), it is characterized in that, described liquid-in-long-pipe filling (1) further comprises aligning gear (10), 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, so that 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).
8. such as claim 6 or 7 described liquid-in-long-pipe fillings (1), it is characterized in that described liquid-in-long-pipe filling (1) also comprises be used to the control setup of controlling described spool (15) and move 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 for measuring 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.
9. 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 the method may further comprise the steps:
(a) make back pressure gas under the back pressure effect, only flow into container (6) from the 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 described reservoir channel at the height that can not make described liquid material (24) bubbing of distance container (6) bottom filling liquid material (24) in the container (6);
(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.
10. method as claimed in claim 9 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.
11. method as claimed in claim 9 is characterized in that,
Operation to the interior filling liquid material of container (6) (24) in the described step (c) further comprises: fast can and flood irrigation dress, before liquid material (24) reaches predetermined altitude, first carry out fast can a period of time to fill fast speed than flood irrigation, carry out flood irrigation dress a period of time with the speed slower than fast can again, until liquid material (24) arrives till the predetermined altitude.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN 200910195560 CN102020227B (en) | 2009-09-11 | 2009-09-11 | Long-tube liquid filling device and filling method |
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| 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 CN102020227A (en) | 2011-04-20 |
| CN102020227B true CN102020227B (en) | 2013-02-13 |
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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 |
| 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 |
| IT201800009471A1 (en) * | 2018-10-16 | 2020-04-16 | Sacmi Beverage Spa | 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 |
| CN113002825B (en) * | 2021-02-23 | 2023-05-12 | 江苏仅三生物科技有限公司 | Drip irrigation type feeding mechanism for sweet wormwood extracting solution in skin care product |
| CN114195067B (en) * | 2021-12-07 | 2022-12-30 | 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 |
| CN116443797B (en) * | 2023-04-23 | 2023-10-13 | 苏州冠礼科技有限公司 | Full-automatic chemical filling equipment |
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| CN102020227A (en) | 2011-04-20 |
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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. |
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