JP3624177B2 - Method and device for filling fluid in package - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a filling method and a filling device for filling a fluid such as a granular material into a packaging body such as a packaging bag.
[0002]
[Prior art]
For example, when filling a granular material such as wheat flour into a packaging bag with a valve, the filling weight of the granular material in the packaging bag is measured while filling the granular material into the packaging bag. And, in order to improve the working efficiency and improve the measurement accuracy, until the filling weight of 90% to 95% of the target weight is reached, the powder bag is filled with the powder at high speed, and when the weight is reached A two-stage filling method is generally performed in which the powder is charged at a low speed by switching the powder filling speed from a high speed to a low speed and the remaining weight of about 10% to 5%.
[0003]
In this two-stage filling method, in the control system for controlling the feeding device that feeds the granular material and fills the packaging bag with the granular material, the filling weight value for switching from high-speed filling of the granular material to low-speed filling , And a filling weight value for stopping the low-speed filling of the granular material and ending the filling operation is set. At this time, if the difference between the setting value for switching the filling speed and the setting value for ending the filling operation is small, the low-speed filling time is shortened, and the variation in the measured value among the packaging bags becomes large. On the other hand, if the difference between the two set values is large, the low-speed filling time becomes long, and even if the weighing accuracy is good, the working efficiency is deteriorated and time is wasted. Therefore, in order to minimize the waste of time while maintaining high weighing accuracy, it is necessary to appropriately maintain the low-speed filling time. For that purpose, the set value of the filling weight for switching the filling speed must be set appropriately.
[0004]
FIG. 6 is a diagram showing the relationship between the filling time of the granular material in the packaging bag (elapsed time from the start of filling) and the filling weight of the granular material in the packaging bag. As indicated by the solid line A in FIG. 6, the filling weight reaches the first set value (speed switching set value) W ₁ when the time Ta has elapsed from the start of filling due to the high-speed filling of the granular material. The filling speed is switched from high speed to low speed by the command. It should be noted that even if a speed switching signal is output from the control system, due to inertia, it is not instantaneously switched to low-speed filling, and usually a slight response delay occurs as shown in the figure. By slow filling, filling weight second set value when the time Tb from the start filling has elapsed reaches (target setpoint) W _2, the filling operation is stopped by an instruction from the control system, one packing bag The operation of filling the granular material into is completed. Slow filling time _{T 2} of the this case is the difference between time Tb and time _{Ta (T 2 = Tb-Ta} ).
[0005]
Here, in a packing in which the state of the product (air content, bulk density, tightness, etc.) changes like powder, the filling speed is likely to change, and as shown by the broken line B in FIG. The slow filling time T ₂ ′ may be longer than the standard slow filling time T ₂ . In some cases, as indicated by a one-dot chain line C in FIG. 6, the low-speed filling time T ₂ ″ may be shorter than the standard low-speed filling time T ₂ , and the actual filling state is centered on the solid line A. Usually, it fluctuates between the broken line B and the alternate long and short dash line C.
[0006]
[Problems to be solved by the invention]
As described above, in order to reduce the waste of time while maintaining high weighing accuracy, speed when it is necessary to properly hold the slow filling time T _2, For this purpose, switching from high speed filling into the slow filling It must be re-set according to the situation set value W ₁ switching. However, conventionally, this operation is left to the operator, and therefore, it can not be said that the filling state is always optimally adjusted, or a waste of time slow filling time T ₂ is too long, weighing accuracy slow filling time T ₂ is too short is or are sacrificed, been a problem.
[0007]
The present invention has been made in view of the circumstances as described above, and is a packaging that can always manage the low-speed filling time appropriately in the two-stage filling method, and can reduce waste of time while maintaining high weighing accuracy. It is an object of the present invention to provide a method for filling a body with a fluid, and to provide a device for filling a body with a fluid that can suitably perform the method.
[0008]
[Means for Solving the Problems]
The invention according to claim 1 measures the filling weight of the fluid in the package while filling the package with the fluid at a high speed, and when the filling weight reaches the speed switching set value, While switching the filling speed to low speed and continuously filling the package with fluid at low speed, measure the filling weight of the fluid in the package, and when the filling weight reaches the target set value, In the fluid filling method for stopping the filling operation, the low-speed filling time from the time when the filling weight reaches the speed switching set value to the time when the filling weight reaches the target setting value is measured. The measured value is compared with a preset standard value, and the speed switching set value is adjusted so that the deviation falls within a predetermined range.
[0009]
The invention according to claim 2 is characterized in that, in the filling method according to claim 1, the package is a packaging bag and the fluid is a powder.
[0010]
According to a third aspect of the present invention, there is provided a feeding means for feeding a fluid and filling the package with the fluid, a high-speed driving means for driving the feeding means at a high speed, and driving the feeding means at a low speed. A low-speed driving means, a measuring means for measuring the filling weight of the fluid in the package, and the high-speed driving means is operated until the filling weight reaches the speed switching set value based on the measured value by the measuring means, Control means for controlling the low-speed drive means to stop by operating the low-speed drive means when the weight reaches the speed switching set value, and to stop the low-speed drive means when the filling weight reaches the target set value; A time filling means for measuring a low-speed filling time from when the filling weight reaches the speed switching set value to when the filling weight reaches the target set value. This A set value adjusting means for comparing the measured value by the time measuring means with a preset standard value and adjusting the speed switching set value so that the deviation falls within a predetermined range; To do.
[0011]
The invention according to claim 4 is the filling apparatus according to claim 3, wherein the package is a packaging bag and the fluid is a powder.
[0012]
According to the filling method of the invention according to claim 1, the low-speed filling time from the time when the filling weight reaches the speed switching set value to the time when the filling weight reaches the target setting value is measured, and the measured value is set in advance. The speed switching set value is adjusted such that the deviation is within a predetermined range by comparing with the standard value. That is, when the measured value is too short compared to the standard value, the speed switching set value is reduced. Conversely, when the measured value is too long compared to the standard value, the speed switching set value is increased. And since the filling operation of the fluid to the next package body is performed after the adjustment, low-speed filling time is always hold | maintained appropriately. As a result, waste of time can be reduced while maintaining high weighing accuracy.
[0013]
In the filling method of the invention according to claim 2, the low-speed filling time is always properly maintained in the filling operation of the powder body into the packaging bag.
[0014]
In the filling apparatus of the invention according to claim 3, first, the feeding means is driven at a high speed by the high speed driving means, and the fluid is filled into the package body at a high speed, while the fluid in the package body is filled by the weighing means. The weight is measured. When the filling weight measured by the weighing means reaches the speed switching set value, the high speed driving means is stopped by the control means and the low speed driving means is operated, and the feeding means is driven at a low speed by the low speed driving means, While the package is filled with the fluid at a low speed, the filling weight of the fluid in the package is measured by the weighing means. When the filling weight measured by the weighing means reaches the target set value, the low speed driving means is stopped by the control means, and the operation of filling the package with the fluid is completed. During this filling operation, the low-speed filling time from the time when the filling weight reaches the speed switching set value to the time when the filling weight reaches the target setting value is measured by the time measuring means. Then, the set value adjusting means compares the measured value with a preset standard value, and adjusts the speed switching set value so that the deviation falls within a predetermined range. That is, when the measured value is too short compared to the standard value, the speed switching set value is reduced. Conversely, when the measured value is too long compared to the standard value, the speed switching set value is increased. After this adjustment, the filling operation of the fluid into the next package is performed. Accordingly, the low-speed filling time is always properly maintained, and as a result, it is possible to reduce time waste while maintaining high weighing accuracy.
[0015]
In the filling device of the invention according to claim 4, the low-speed filling time is always properly maintained in the filling operation of the granular material into the packaging bag.
[0016]
DETAILED DESCRIPTION OF THE INVENTION
A preferred embodiment of the present invention will be described below with reference to FIGS.
[0017]
FIG. 1 and FIG. 2 show an example of the configuration of a filling device used for carrying out a method of filling a fluid into a package according to the present invention, for example, a method of filling a granular material into a packaging bag with a valve. FIG. 1 is a block diagram showing a configuration of a drive control system of the filling device, and FIG. 2 is a schematic diagram showing a schematic configuration of the filling device. First, the configuration of the filling device will be described with reference to FIG.
[0018]
The filling device includes a granular material supply unit 10, a granular material supply unit 12, and a granular material filling unit 14. The granular material supply unit 10 includes a hopper 16, a granular material supply screw conveyor 18, and a granular material supply driving motor 20 that rotationally drives the screw conveyor 18. And the granular material thrown in from the hopper 16 falls to the rear-end part of the screw conveyor 18, and is transferred ahead in the horizontal direction by the screw conveyor 18, and the granular-material supply part 12 in the front-end part of the screw conveyor 18 is carried out. To be supplied.
[0019]
The granular material feeding unit 12 includes a granular material feeding screw conveyor 22. The rear end side of the rotary shaft 24 of the screw conveyor 22 is rotatably supported by a bearing unit 26, and a pulley 28 is fixed to the rear end portion of the rotary shaft 24. The pulley 28 rotates through a belt 30, a pulley 32, and a clutch 34, and further through a pulley 36 and a belt 38 pulley 40, and the rotation of a main driving motor 42 (hereinafter referred to as “high-speed driving motor 42”). A rotation shaft of a drive motor 50 with a speed reducer (hereinafter referred to as a “low speed drive motor 50”) that is mechanically connected to the shaft and is connected to the shaft through a pulley 44, a belt 46, and a pulley 48. It is mechanically connected to. Although not shown, a supply path for compressed air is formed in the axial direction of the axis of the rotating shaft 24 of the screw conveyor 22 for feeding powder, and the supply path for compressed air is While communicating with the jet nozzle formed in the front-end part of the screw conveyor 22, it is connected to the flow path to the compressed air source.
[0020]
In the granular material supply unit 12, the granular material supplied to the rear end portion from the granular material supply unit 10 is transferred forward in the horizontal direction by the screw conveyor 22 and is pumped toward the supply base 52. At the same time, the compressed air supplied from the compressed air source through the supply path of the axial center of the screw conveyor 22 and jetted from the jet nozzle at the front end of the screw conveyor 22 is fed forward of the feeding base 52. ing. Note that a configuration in which compressed air is not used may be employed to send the powder particles fed by the screw conveyor 22 from the front end portion of the screw conveyor 22 to the front of the feeding base 52. For example, a through-hole is formed in the axial center of the rotating shaft of the screw conveyor 22, the rotating shaft is inserted into the through-hole, and the tip of the rotating shaft protrudes from the front end surface of the screw conveyor 22 for feeding. As a structure that extends to the front of the mouthpiece 52, fastens the screw blade to the extension portion of the rotating shaft, and rotates the rotating shaft at a high speed, thereby sending the powder particles to the front of the feeding mouthpiece 52. Also good.
[0021]
The granular material filling unit 14 is provided with a granular material filling tube 54 whose tip is inserted into the valve opening of the packaging bag 1, and the granular material filling tube 54 is fed via a flexible pipe joint 56. It is connected to the mouthpiece 52. The packaging bag 1 in which the tip of the powder filling tube 54 is inserted into the valve port is supported on a bag receiving table 58. The bag cradle 58 is connected to a measuring frame 64 attached to the main body frame 60 via a leaf spring 62, and is a packaging bag supported on the bag cradle 58 by a load cell 66 provided on the main body frame 60. The filling weight of the granular material in 1 is automatically measured every moment.
[0022]
As shown in FIG. 1, the load cell 66 is connected to a first comparator 70 and a second comparator 72 via an A / D converter 68, respectively, and a weighing signal from the load cell 66 is received by each comparator 70. , 72, respectively. Further, a setter 74 is connected to the first comparator 70 and the second comparator 72, and the setter 74 sets the set value of the filling weight when switching from high speed filling to low speed filling (speed switching). A set value) W ₁ signal and a set value (target set value) W ₂ signal for filling weight when the low speed filling is stopped and the filling operation is terminated are output, respectively, and the speed switching set value W ₁ signal is 1 is input to the first comparator 70, and the signal of the target set value W ₂ is input to the second comparator 72. Then, the first comparator 70, the filling weight and the speed switch setting value W ₁ which is measured by the load cell 66 are compared, the signal corresponding to the comparison result is output. Further, the second comparator 72, the fill weight and the target setting value W ₂ being measured by the load cell 66 are compared, the signal corresponding to the comparison result is output.
[0023]
The signals output from the first comparator 70 and the second comparator 72 are input to the controller 76 and the timer 78, respectively. The controller 76 sends control signals to the high-speed drive motor 42 and the low-speed drive motor 50, respectively, to control the rotation operation of the powder material feeding screw conveyor 22. Further, the timer 78, fill weight from the time when the signal indicating that the fill weight measured by the load cell 66 has reached the set value W ₁ switching speed is output from the first comparator 70, which is measured by the load cell 66 There time until the time when the signal indicating that reaches the target setpoint W ₂ is output from the second comparator 72 (low-speed filling time) is measured. The signal output from the timer 78 is input to the arithmetic circuit 80, and the arithmetic circuit 80 performs arithmetic processing as will be described later. Then, an adjustment signal for resetting the speed switching set value W ₁ is sent from the arithmetic circuit 80 to the setting device 74.
[0024]
Next, an example of the powder filling operation performed using the filling apparatus having the above-described configuration will be described.
[0025]
When the empty packaging bag 1 is supported on the bag cradle 58 and the granular material filling tube 54 is inserted into the valve opening of the packaging bag 1, the granular material supply drive motor 20 causes the granular material supply screw conveyor to be used. First, the high-speed drive motor 42 is driven by a control signal from the controller 76. At this time, the clutch 34 mechanically connects the rotary shaft 24 of the screw conveyor 22 and the rotary shaft of the high-speed drive motor 42, and the high-speed drive motor 42 drives the powder conveyor 22 for conveying the powder and particles at a high speed. Be made. Thereby, the granular material thrown into the hopper 16 falls to the rear end portion of the granular material supply screw conveyor 18 and is transferred in the horizontal direction by the screw conveyor 18, and the granular material supply screw conveyor 22. Is supplied near the rear end. The granular material supplied to the vicinity of the rear end of the screw conveyor 22 is fed by the screw conveyor 22 in the horizontal direction toward the feed cap 52 and is compressed by the compressed air ejected from the ejection nozzle at the front end of the screw conveyor 22. It is sent to the front of the feeding cap 52. And a granular material is filled into the packaging bag 1 at high speed from the feed cap 52 through the granular material filling tube 54.
[0026]
At this time, the load weight of the granular material in the packaging bag 1 is continuously measured by the load cell 66. Fill weight measured by the load cell 66, for example, the speed is preset at 90% to 95% of the filling weight of the target switch reaches the set value W _1, which is detected by the first comparator 70 The signal is input to the controller 76 and the timer 78, respectively. Then, a control signal is sent from the controller 76 to the high-speed drive motor 42 and the low-speed drive motor 50, and the high-speed drive motor 42 is stopped and the low-speed drive motor 50 is driven. At the same time, the clutch 34 is switched so as to mechanically connect the rotating shaft 24 of the screw conveyor 22 and the rotating shaft of the low-speed drive motor 50, and the low-speed drive motor 50 causes the screw conveyor 22 for feeding the granular material to move at a low speed. It is driven and a granular material is filled in the packaging bag 1 at low speed. Further, a timer 78 is started by a signal from the first comparator 70.
[0027]
Also during this slow fill, fill weight of granular material in the packaging bag 1 by the load cell 66 are measured continuously, the fill weight measured by the load cell 66 reaches the target setting value W _2, the second This is detected by the comparator 72 and the signal is input to the controller 76 and the timer 78, respectively. Then, a control signal is sent from the controller 76 to the low-speed drive motor 50, the low-speed drive motor 50 is stopped, and the operation of filling the powder body into one packaging bag 1 is completed. Further, the timer 78 is stopped by a signal from the second comparator 72, the time the timer 78 has been activated, i.e., reaches the set value W ₁ filling weight of granular material in the packaging bag 1 is speed switching fill weight from the time of low-speed filling time T ₂ of the up when it reaches the target setting value W ₂ is measured. Then, a signal indicating the low-speed filling time T ₂ is sent from the timer 78 to the arithmetic circuit 80.
[0028]
The arithmetic circuit 80 is compared with the low-speed filling time T ₂ measured by the timer 78 with a preset standard value Ts is, as the deviation falls within the predetermined range, the correction value of the speed switch setting value W ₁ is Calculated. For example, when the measured low-speed filling time T ₂ is longer than the standard value Ts (T ₂ > Ts), the speed switching set value W ₁ is increased by dW to be W ₁ + dW, and conversely the measured low speed filling time _{T 2} is shorter than the standard value Ts _(T 2 <Ts) time, and _W 1 -dw by reducing the speed switch setting value _{W 1} only dW, measured slow filling time _{T 2} is the standard value When equal to Ts (T ₂ = Ts), the speed switching set value W ₁ is not corrected. The standard values Ts and dW are stored in advance in the memory.
[0029]
Speed switching signal indicating the correction value of the set value W ₁ is fed back from the arithmetic circuit 80 to the setter 74, the speed switch setting value W ₁ is changed in the setter 74. Then, by using the speed switch setting value W ₁ is changed, the filling operation of the granular material to the next packaging bag 1 is performed.
[0030]
As described above, in the method of correcting the speed switching set value W ₁ , the low speed filling time T ₂ is hardly equal to the standard value Ts (T ₂ = Ts), so the speed switching set value W _{1 is} almost every time. Will be changed. Such in order to reduce waste, compared standard value Ts is not modified speed switching setpoint W ₁ may be set the time width dt. When the measured low-speed filling time T ₂ is longer than the standard value Ts + dt (T ₂ > Ts + dt), the speed switching set value W ₁ is increased by dW to be W ₁ + dW, and the measured low-speed filling time When T ₂ is equal to or shorter than the standard value Ts + dt and equal to or longer than the standard value Ts−dt (Ts + dt ≧ T ₂ ≧ Ts−dt), the speed switching set value W ₁ is not changed and measured. when in the low-speed filling time _{T 2} is shorter than the standard value _{Ts-dt (T 2 <Ts} -dt) is to reduce the speed switch setting value _{W 1} only dW and _W 1 -dw.
[0031]
In the method described above, when the deviation between the measured slow filling time T ₂ and the standard value Ts is large, the slow filling time T ₂ does not approach immediately to the standard value. Therefore, in order to accelerate the convergence to the standard value, it is desirable to increase also the amount of change in the speed switch setting value W ₁ in accordance with the deviation. To describe for one example of such a method, ▲ 1 ▼ when slow filling time _{T 2} which is measured is longer than the standard value _{Ts + 3dt (T 2> Ts} + 3dt) , the speed switch setting value _{W 1} is increased by 3dW W ₁ +3 dW. ▲ 2 ▼ measured slow filling time _{T 2} is shorter than or equal to the standard value Ts + 3dt, when longer than the standard value Ts + 2dt (Ts + 3dt ≧ T 2> Ts + 2dt) , increase the speed switch setting value _{W 1} only 2dW Let W ₁ + 2dW. (3) When the measured low-speed filling time T ₂ is equal to or shorter than the standard value Ts + 2dt and longer than the standard value Ts + dt (Ts + 2dt ≧ T ₂ > Ts + dt), the speed switching set value W ₁ is increased by dW. Let W ₁ + dW. ▲ 4 ▼ measured slow filling time _{T 2} is shorter than or equal to the standard value Ts + dt, equal to the standard value Ts-dt longer than _{(Ts + dt ≧ T 2 ≧} Ts-dt) time, the speed switch setting value I do not want to change the W _1. ▲ 5 ▼ measured slow filling time _{T 2} is shorter than the standard value Ts-dt, equal to the standard value Ts-2dt longer than _{(Ts-dt> T 2 ≧} Ts-2dt) time, the speed switch setting value W ₁ is reduced by dW to be W ₁ -dW. ▲ 6 ▼ measured slow filling time _{T 2} is shorter than the standard value Ts-2dt, or equal to the standard value Ts-3dt longer than _{(Ts-2dt> T 2 ≧} Ts-3dt) time, the speed switch setting value W ₁ is reduced by ₂ dW to be W ₁ -2 dW. ▲ 7 ▼ when slow filling time _{T 2} which is measured is shorter than the standard value _{Ts-3dt (T 2 <Ts} -3dt) is to reduce the speed switch setting value _{W 1} only 3dW and _W 1 -3DW. A summary of the above relationships is shown in FIG. Moreover, the flowchart of this process is shown in FIG. 4 and FIG.
[0032]
In the description given above, so that to adjust the speed switch setting value W ₁ each time performing the filling operation of the granular material into the packaging bag, for example, the filling operation of the granular material into the packaging bag the average value of the low-speed filling time T ₂ every time a plurality of times, the average value may be adjusted in the speed switch setting value W ₁ each time performing the filling operation several times using. Moreover, obtains a moving average value of the low-speed filling time T ₂ at a plurality of times of filling operation, while incorporating the filling status of the plurality of times of filling operation, so as to adjust each time, the speed switch setting W ₁ each filling operation May be. It is how often or to adjust the speed switch setting value W ₁ at may be suitably determined depending on the state and the filling status of the product.
[0033]
【The invention's effect】
According to the filling method of the invention according to claim 1, even when the filling state of the fluid into the package body fluctuates, the low-speed filling time is always properly maintained regardless of the skill level or busyness of the operator. Therefore, waste of time can be reduced while maintaining high weighing accuracy.
[0034]
In the filling method according to the second aspect of the present invention, it is possible to reduce waste of time while maintaining high measurement accuracy in the operation of filling the granular material into the packaging bag.
[0035]
When the filling device of the invention according to claim 3 is used, the invention according to claim 1 can be suitably implemented, and even when the filling state of the fluid into the package fluctuates, Regardless of the busyness or the like, the low-speed filling time can always be appropriately maintained, so that waste of time can be reduced while maintaining high weighing accuracy.
[0036]
In the filling device of the invention according to claim 4, in the operation of filling the granular material into the packaging bag, waste of time can be reduced while maintaining high measurement accuracy.
[Brief description of the drawings]
FIG. 1 is a block diagram showing a configuration of a drive control system of a filling device, showing an example of a configuration of a filling device used for carrying out a method of filling a granular material into a packaging bag according to the present invention. .
FIG. 2 is a schematic diagram showing a schematic configuration of a filling device in the same manner.
FIG. 3 illustrates an example of a method for determining a change amount of a speed switching set value in accordance with a deviation between a measured low speed filling time and a standard value in the method of filling a granular material into a packaging bag according to the present invention. It is a figure for doing.
FIG. 4 is a flowchart showing an example of a method for filling powder bodies into a packaging bag according to the present invention.
FIG. 5 is also a flowchart showing an example of a method for filling powder bodies into a packaging bag according to the present invention.
FIG. 6 is a diagram showing the relationship between the filling time of the granular material in the packaging bag and the filling weight of the granular material in the packaging bag.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Packaging bag 10 Powder supply part 12 Powder supply part 14 Powder supply part 16 Hopper 18 Screw conveyor 20 for powder supply 20 Drive motor 20 for powder supply
22 Powder Conveyor Screw Conveyor 34 Clutch 42 Powder Conveyor Main Drive Motor (High Speed Drive Motor)
50 Drive motor with speed reducer for feeding powder (low speed drive motor)
52 Feed mouthpiece 54 Powder and particle filling tube 58 Bag holder 64 Weighing frame 66 Load cell 68 A / D converter 70, 72 Comparator 74 Setter 76 Controller 78 Timer 80 Arithmetic circuit

Claims (4)

While filling the package with the fluid at high speed, measure the filling weight of the fluid in the package, and when the filling weight reaches the speed switching set value, switch the filling speed of the fluid into the packaging to a low speed, The packaging body that measures the filling weight of the fluid in the packaging body while filling the packaging body at a low speed, and stops the fluid filling operation to the packaging body when the filling weight reaches the target set value. In the method of filling the fluid into
Measure the low-speed filling time from the time when the filling weight reaches the speed switching set value to the time when the filling weight reaches the target set value, compare the measured value with a preset standard value, and the deviation Wherein the speed switching set value is adjusted so that the value falls within a predetermined range. The method for filling a package with a fluid according to claim 1, wherein the package is a packaging bag, and the fluid is a granular material. A feeding means for feeding the fluid and filling the package with the fluid;
High-speed driving means for driving the feeding means at high speed;
Low speed driving means for driving the feeding means at a low speed;
A measuring means for measuring the filling weight of the fluid in the package;
Based on the measured value by the weighing means, the high-speed driving means is operated until the filling weight reaches the speed switching set value, and when the filling weight reaches the speed switching setting value, the high-speed driving means is stopped and the low-speed driving is performed. Control means for operating the means and controlling the low-speed driving means to stop when the filling weight reaches a target set value;
In a device for filling a package with a fluid,
Time measuring means for measuring a low-speed filling time from when the filling weight reaches the speed switching set value to when the filling weight reaches the target set value;
A set value adjusting means for comparing the measured value by the time measuring means with a preset standard value and adjusting the speed switching set value so that the deviation falls within a predetermined range;
A device for filling a fluid into a package, further comprising: The apparatus for filling a package with a fluid according to claim 3 , wherein the package is a packaging bag, and the fluid is a powder.

Images