CN101746530B - Liquid filling and packing device - Google Patents
Liquid filling and packing device Download PDFInfo
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- CN101746530B CN101746530B CN 200910222645 CN200910222645A CN101746530B CN 101746530 B CN101746530 B CN 101746530B CN 200910222645 CN200910222645 CN 200910222645 CN 200910222645 A CN200910222645 A CN 200910222645A CN 101746530 B CN101746530 B CN 101746530B
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- filling
- liquid
- control valve
- flow control
- packing
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- Basic Packing Technique (AREA)
- Containers And Plastic Fillers For Packaging (AREA)
- Supply Of Fluid Materials To The Packaging Location (AREA)
- Filling Of Jars Or Cans And Processes For Cleaning And Sealing Jars (AREA)
Abstract
The invention provides a liquid filling and packing device capable of accurately controlling the liquid level height of filling solution in tubular packing material and preventing filling solution ejection and liquid insufficiency. The liquid filling and charging device comprises a filling pipe (12) having a flow control valve (14) driven by a servo motor (16), a pressure sensor (18) installed atthe upstream side of the flow control valve (14) for detecting the pressure of the filling solution supplied for the filling solution pot, a floater (20) floated in the filling solution filled in thetubular packing material (B) and having a magnet, a magnetic sensor (22) for detecting the magnetic variation caused by the floating of the floater up and down along with the magnet, and a control mechanism (24) for controlling the servo motor (16)and adjusting the opening and the closing of the flow control valve (14) according to the detection result of the pressure sensor (18) and the magneticsensor (22).
Description
Technical field
The present invention relates to liquid filling and packing device, it can quite accurately be controlled the electrolyte level of the filling liquid in the tubular packaging material that is configured as tubulose.
Background technology
In the past, as this device, the someone has proposed to comprise the liquid filling and packing device of following part: swim in the filling liquid that is filled in the tubular packaging material and have magnet float, will follow magnet to fluctuate and strong and weak variation the in magnetic field that produce is converted to electric signal and the Magnetic Sensor of output and the air driven flow control valve of controlling according to the output signal of Magnetic Sensor (referring to Patent Document 1).
[patent documentation 1] Japan opens flat 1-82102 communique in fact
But above-mentioned patent documentation 1 described liquid filling and packing device is because its flow control valve is air driven, so there is the problem that opens and closes low precision.In addition, if the variation that comes from the liquid supply pressure of filling flow container more than certain limit, then can not be controlled electrolyte level, exist to produce that filling liquid spray or with the problem of fluid low.Particularly at filling liquid spray time-out, need carry out the sterilization of device itself again, recovering old shape needs for a long time, and this is a very big problem.
Summary of the invention
The purpose of this invention is to provide a kind of liquid filling and packing device, it can quite accurately control and can prevent that filling liquid sprayed and fluid low the electrolyte level of the filling liquid in the tubular packaging material that is configured as tubulose.
The inventor has carried out research with keen determination to finishing above-mentioned purpose, found that by following manner and can solve above-mentioned problem also and then finish the present invention: when driving flow control valve with servomotor torque constant, except according to the float position information that detects the filling liquid electrolyte level, also control flow control valve according to the pressure information of the filling liquid of sending here from the filling flow container.
Namely, the present invention is: 1) a kind of liquid filling and packing device, be characterized in, it is tubulose that the length direction both ends of packing are sealed to form shape, in this tubular packaging material, fill filling liquid, the tubular packaging material conveying downwards on one side that is filled with filling liquid only is equivalent to the roughly length of a container, on one side seal and pack in the direction with the length direction quadrature of tubular packaging material, this liquid filling and packing device comprises: have the filling pipe that utilizes the flow control valve that servomotor torque constant drives; Be arranged on the upstream side of flow control valve and detect pressure sensor by the pressure of filling the filling liquid that flow container supplies with; Swim in the float that is filled in the interior filling liquid of this tubular packaging material and has magnet; The power of following the magnetic field that fluctuating of float with magnet produce is changed the Magnetic Sensor that detects; Control described servomotor torque constant and adjust the control mechanism of the keying degree of flow control valve according to the testing result of above-mentioned pressure sensor and Magnetic Sensor.
In addition, the present invention relates to: 2) as above-mentioned 1) liquid filling and packing device put down in writing, it is characterized in that, control mechanism is according to following content control servomotor torque constant and adjusts the mechanism of the keying degree of flow control valve: by the keying scope of the determined flow control valve of testing result of pressure sensor, and for making float become the target location utilizes the flow control valve that the PID computing calculates from the Magnetic Sensor testing result keying ratio value; 3) the liquid filling and packing machine is characterized in that, have fill flow container, be connected with the filling flow container a plurality of above-mentioned 1) or 2) described liquid filling and packing device.
The invention effect
According to liquid filling and packing device of the present invention, can quite accurately control the electrolyte level of the filling liquid in the tubular packaging material that is configured as tubulose.In addition, can also tackle the variation from the liquid supply pressure of filling flow container, significantly expand the working pressure scope, and can prevent reliably that the spray of filling liquid from rising and fluid low.
Description of drawings
Fig. 1 is the synoptic map of an example of expression liquid filling and packing device of the present invention.
Fig. 2 is the figure of the control method of explanation liquid filling and packing device of the present invention.
Description of reference numerals
10, liquid filling and packing device; 12, fill pipe; 14, flow control valve; 16, servomotor torque constant; 18, pressure sensor; 20, float; 22, Magnetic Sensor; 24, control mechanism; A, packing; B, tubular packaging material.
The specific embodiment
As liquid filling and packing device of the present invention, it can be following liquid filling and packing device, it is sealed to form shape with the length direction both ends of packing is tubulose, in tubular packaging material, fill filling liquid, the tubular packaging material conveying downwards on one side that is filled with filling liquid only is equivalent to the roughly length of a container, on one side seal and pack in the direction with the length direction quadrature of tubular packaging material, wherein this liquid filling and packing device comprises: have the filling pipe that utilizes the flow control valve that servomotor torque constant drives; The upstream side that is arranged on above-mentioned flow control valve also detects the pressure sensor of the pressure of the filling liquid of being supplied with by the filling flow container; Swim in the float that is filled in the interior filling liquid of tubular packaging material and has magnet; The power of following the magnetic field that fluctuating of float with magnet produce is changed the Magnetic Sensor that detects; Control above-mentioned servomotor torque constant and adjust the control mechanism of the keying degree of flow control valve according to the testing result of above-mentioned pressure sensor and Magnetic Sensor, but, the present invention is not limited to this, for example can be with the device of packing fruit juice, milk etc. as preferred exemplary, and the device of cream sauce such as packing catsup, mayonnaise is also contained among the present invention.
In liquid filling and packing device of the present invention, because utilize servomotor torque constant to drive flow control valve and according to the float position information that detects the filling liquid electrolyte level and the pressure information of filling the filling liquid that flow container supplies control flow control valve, so can tackle the accident of the liquid supply pressure of for example filling the filling liquid that flow container supplies changes, follow the variation of filling the filling liquid residual quantity in the flow container and the liquid supply pressure that produces variation, and utilize the pressure of the liquid supply pressure of pump when filling flow container supply filling liquid to change, electrolyte level can be remained on desirable height.
In addition, liquid filling and packing device of the present invention is particularly useful under the situation of a plurality of devices of filling flow container connection.For example, under the occasion of filling three liquid filling and packing devices of flow container connection, if make wherein one to quit work, then other two the liquid supply pressure in the running can rise moment, but because liquid filling and packing device of the present invention carries out the adjustment of flow control valve with it accordingly, so other two stably keep electrolyte level.
As mentioned above, control mechanism is to control above-mentioned servomotor torque constant and adjust the mechanism of the keying degree of flow control valve according to the testing result of pressure sensor and Magnetic Sensor, but preferably control servomotor torque constant according to following content and adjust the mechanism of the keying degree of flow control valve: the keying scope of the flow control valve of being determined by the testing result of pressure sensor, and for making float become the value of the keying ratio of the flow control valve of from the testing result of Magnetic Sensor, calculating by the PID computing target location.That is, the pressure information that detects according to pressure sensor of control mechanism is determined the minimum of keying degree of flow control valve and maximum and determine the keying scope of flow control valve.So, the flow of the filling liquid of filling in the tubular packaging material is controlled in the specialized range.In addition, preferably, the data of the relation of pressure information and keying scope (minimum and maximum) are stored in advance in the control mechanism.In addition, the float position information that detects according to Magnetic Sensor, make float become ground, target location and carry out the PID computing, it is suitable that calculating flow control valve in according to the keying scope of the determined flow control valve of above-mentioned pressure sensor testing result is opened much degree, according to this result, send instruction to the servomotor torque constant that drives flow control valve.
Below, with reference to accompanying drawing the present invention is described more specifically, still, technical scope of the present invention is not limited to these examples.Fig. 1 is the synoptic map of an example of liquid filling and packing device of the present invention, and Fig. 2 is the figure of the control method of explanation liquid filling and packing device of the present invention.
As shown in Figure 1, liquid filling and packing device 10 as an example of the present invention is following apparatus: with the both ends sealing with the length direction of packing A of the mode of the leading section of surround filling pipe 12, thereby form tubular packaging material B, in tubular packaging material B, fill filling liquid, the tubular packaging material B that will be filled with on one side filling liquid carries the length that only roughly is equivalent to a container downwards, in direction with the length direction quadrature of tubular packaging material B seal and pack on one side.
In addition, the float 20 with magnet is arranged to and can be moved along the vertical direction in the mode of surrounding the leading section of filling pipe 12, swims in the filling liquid that is filled in the tubular packaging material B.Be provided with Magnetic Sensor 22 near float 20, Magnetic Sensor 22 detects the strong and weak variation in the magnetic field that produces along with fluctuating of the magnet of float 20 and exports as electric signal.
In addition, liquid filling and packing device 10 has control mechanism 24, and this control mechanism is controlled servomotor torque constant 16 according to the testing result of pressure sensor 18 and Magnetic Sensor 22 and adjusted the keying degree of flow control valve 14.
With reference to Fig. 2 the control method of liquid filling and packing device 10 with control mechanism 24 as described above is described.As shown in Figure 2, when beginning to fill with liquid filling and packing device 10 of the present invention, at first as preparatory function, pump drainage is filled pipe 12 interior air, and (step 1) also makes float 20 rise to assigned position (step 2).
Then, the formal filling liquid packing of beginning.In the packing process, detect from the liquid supply pressure of filling flow container by pressure sensor 18, determine minimum and maximum, i.e. the keying scope (step 3) of definite flow control valve 14 of the keying degree of flow control valve 14 according to this pressure information.On the other hand, utilize the position (power in magnetic field) of the present float 20 of Magnetic Sensor 22 detections, according to this positional information calculation PID operation values (keying ratio: (%)), to become float target location (for example 50% stroke) (step 4).According to keying scope and the PID operation values (valve keying ratio) of determined flow control valve 14, send instruction and adjust flow control valve 14 (step 5) to servomotor torque constant 16.When each packing, repeat above-mentioned steps 3-step 5, up to end-of-fill, and make electrolyte level always keep certain.
More particularly, be 100kPa if utilize pressure sensor 20 to detect from the liquid supply pressure of filling flow container, then the keying degree of flow control valve 14 is confirmed as for example scope of 2.0 (minimum)-2.5 (maximum) mm.On the other hand, utilize Magnetic Sensor 22 to detect the position of present float 20, the switch ratio of utilizing PID computing calculated flow rate control cock 14 for example is 40%.According to both results, send instruction to servomotor torque constant 16, the keying degree of flow control valve is adjusted into 2.2mm.In addition, if liquid feed pressure is changed to 150kPa, then the keying degree with flow control valve is defined as for example scope of 1.5-2.0mm, on the other hand, similarly calculates the PID operation values, adjusts flow control valve 14 according to both result.
By carrying out this kind control, suppressed because of the caused influence of the variation that comes from the liquid feed pressure of filling flow container, and the electrolyte level in the tubular packaging material has been remained necessarily, can prevent blowing afloat and the problem of fluid low of filling liquid reliably.
Claims (2)
1. liquid filling and packing device, it is characterized in that, it is sealed to form shape with the length direction both ends of packing is tubulose, in this tubular packaging material, fill filling liquid, the tubular packaging material conveying downwards on one side that is filled with filling liquid only is equivalent to the roughly length of a container, on one side seal and pack in the direction with the length direction quadrature of tubular packaging material, this liquid filling and packing device comprises:
Has the filling pipe that utilizes the flow control valve that servomotor torque constant drives;
Be arranged on the upstream side of described flow control valve and detect pressure sensor by the pressure of filling the filling liquid that flow container supplies with;
Swim in the float that is filled in the interior filling liquid of described tubular packaging material and has magnet;
The strong and weak Magnetic Sensor that detects that changes of the magnetic field that produces to following the fluctuating of this float with magnet;
Control this servomotor torque constant and adjust the control mechanism of the keying degree of this flow control valve according to the keying ratio value of the determined flow control valve of testing result of the keying scope of the determined flow control valve of testing result of described pressure sensor and described Magnetic Sensor.
2. a liquid filling and packing machine is characterized in that, it has many liquid filling and packing devices according to claim 1 of filling flow container, linking to each other with this filling flow container.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2008-305223 | 2008-11-28 | ||
| JP2008305223A JP5203902B2 (en) | 2008-11-28 | 2008-11-28 | Liquid filling and packaging equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101746530A CN101746530A (en) | 2010-06-23 |
| CN101746530B true CN101746530B (en) | 2013-10-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200910222645 Active CN101746530B (en) | 2008-11-28 | 2009-11-23 | Liquid filling and packing device |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP5203902B2 (en) |
| CN (1) | CN101746530B (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103482099B (en) * | 2013-09-03 | 2016-06-08 | 立白日化有限公司 | Accurate quantitative control system and control method thereof during lotion is filling |
| CN109422224A (en) * | 2017-08-28 | 2019-03-05 | 康美包（苏州）有限公司 | The control method and control device of bottle placer and bottle placer |
| CN109748224B (en) * | 2019-01-18 | 2021-02-02 | 象山恒峰汽车零部件有限公司 | Automobile water tank liquid injection equipment |
| CN111661378A (en) * | 2020-05-19 | 2020-09-15 | 多派工业技术(上海)有限公司 | Quantitative online feedback system and method for automatic packaging machine |
| IT202200007211A1 (en) * | 2022-04-12 | 2023-10-12 | Gd Spa | Apparatus for detecting the level of a liquid product in a packaging machine |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4958665A (en) * | 1987-11-20 | 1990-09-25 | Shikoku Kakoki Co., Ltd. | Apparatus for adjusting level of liquid to be filled into packaging tube |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BE1000670A5 (en) * | 1987-06-25 | 1989-03-07 | Baxter Travenol Lab | Device for filling a bag with an infusion liquid. |
| JP2566456B2 (en) * | 1989-02-09 | 1996-12-25 | 雪印乳業株式会社 | Quantitative filling device |
| JPH10194201A (en) * | 1997-01-06 | 1998-07-28 | Lion Corp | Filling line controller for liquid detergent |
| JP2006264755A (en) * | 2005-03-25 | 2006-10-05 | Toyo Jidoki Co Ltd | Flow meter type liquid filling apparatus |
-
2008
- 2008-11-28 JP JP2008305223A patent/JP5203902B2/en active Active
-
2009
- 2009-11-23 CN CN 200910222645 patent/CN101746530B/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4958665A (en) * | 1987-11-20 | 1990-09-25 | Shikoku Kakoki Co., Ltd. | Apparatus for adjusting level of liquid to be filled into packaging tube |
Also Published As
| Publication number | Publication date |
|---|---|
| JP5203902B2 (en) | 2013-06-05 |
| JP2010126230A (en) | 2010-06-10 |
| CN101746530A (en) | 2010-06-23 |
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