JP2003054501A - Fixed quantity filling machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve filling accuracy and filling speed of a fixed quantity filling machine. SOLUTION: The fixed quantity filling machine includes a pump 1 for filing a container 6 with a fixed quantity of a liquid substance to be filled, and a pipe line 4 wherein the pipe line 4 is designed to stop driving the pump 1 when the liquid substance is filled in the container 6 by a specified lower limit quantity not more than predetermined level and to fill the container 6 with the substance by gravity drop after the driving of the pump stops. In the example shown, a second valve element 42a is opened when the driving of the pump stops, and the liquid substance is fed from a second pipe line 42 to a first pipe line 41.

Description

Detailed Description of the Invention

[0001]

The present invention relates to various kinds of liquid fillers such as foods such as seasonings, sauces and fragrances, chemicals such as detergents and paints, cosmetics such as shampoos and rinses, and pharmaceuticals, such as drums and tanks. The present invention relates to a quantitative filling machine and a filling method used when refilling a large container into a small container for refilling.

[0002]

2. Description of the Related Art As this kind of quantitative filling machine, for example,
As described in JP-B-8-6695, a tube type filling machine using a tube pump is known. In this tube type filling machine, a rotary head having a plurality of rollers is mounted on a rotary shaft extending from a motor, and a tube made of an elastic material is arranged on a rotation locus of the rotary head. By rotating the rotary head at a constant speed, the liquid filler is transferred while the tube is intermittently squeezed by each of the rollers, and the liquid filler is filled in the small container.

A tube type filling machine using the above-mentioned tube pump can be easily washed by passing a washing liquid through the tube, and in particular, a liquid filling material containing a perfume or miscellaneous bacteria can be filled. In this case, when it is difficult to clean the tube, it is possible to perform the filling work of different liquid fillings using the same tube pump by simply replacing the tube with a new one, and
It was also possible to solve the problem that the viscosity of the liquid filler was changed without being mixed with the liquid filler when passing through the tube pump.

Moreover, in the case of the above publication,
At the start of filling, the motor of the tube pump is rotated at a high speed, and when the container is filled with the lower limit set amount to be filled, the motor is braked to rotate the motor at a low speed, and then the filling is performed. It is provided so that the rotation of the motor is stopped when a predetermined amount of the liquid filler is filled. In other words, during the filling, the rotation speed of the motor is set to two stages of high speed and low speed to improve the accuracy of the filling amount and shorten the filling time. Further, the motor of the tube pump is reversely rotated when a predetermined amount of the liquid filling is filled, thereby preventing so-called sagging from the tip side of the tube.

[0005]

However, in the filling machine described in the above publication, a certain amount of time is required until the low-speed rotation is reached after the lower limit set amount is filled and the motor is braked. Even in the above, since the filling material is filled in the container, if the difference between the lower limit set amount and the predetermined amount to be filled is reduced, the filling amount may exceed the predetermined amount.

Further, by setting the lower limit setting amount to be low, the filling accuracy is improved, but the time for low speed rotation is lengthened, so that the filling time is lengthened.

The present invention has been made in view of the above problems, and it is an object of the present invention to further improve the filling accuracy and the filling speed of filling by a quantitative filling machine.

[0008]

In order to achieve the above-mentioned object, the feature of the quantitative filling machine according to the present invention is that a pump 1 and a pump 1 for filling a predetermined amount of liquid filling into a container 6 are provided.
Conduit 4 for transferring liquid filling from the container to the container 6
The pump 1 is stopped when the liquid filler having a lower limit set value equal to or less than a predetermined amount is filled in the container 1, and the pump 1 is stopped after the pump 1 is stopped. Is
The point is that the liquid filling material is provided in the container 6 by natural fall.

In the constant quantity filling machine having the above structure,
The container 6 is filled with the liquid filling by driving the pump 1, and even if the driving of the pump 1 is stopped at a lower limit set amount equal to or lower than a predetermined amount, the liquid filling is filled into the container 6 by natural falling, The container 6 can be filled with a fixed amount of liquid filler. Since the filling work can be performed even if the pump 1 is stopped after the lower limit set amount is filled in this way,
It is possible to shorten the time required to rotate the motor of the predetermined pump 1 at a low speed as in the conventional case, and also to set the lower limit set amount close to the predetermined amount to be filled.

In the above invention of the present application, for example, the pipe 4
Is a line for supplying the liquid filling to the container 6 by the pump 1 and a line for connecting the liquid filling to the container 6 by a natural drop which is connected to a large container arranged above. It is also possible to provide. However, for the reason that a large container to be arranged above is required, the pipe line 4 connected to the pump 1 is branched at the branching portion 4a, and one branched pipe line 41 is filled with the liquid filling material in the container 6. So that the other conduit 42 is filled with the liquid filling inside when the pump 1 is driven, and the liquid filling inside flows into the branch portion 4a side by its own weight when the pump 1 is stopped. It is preferable to provide.

That is, the quantitative filling machine according to the second aspect of the present invention transfers the liquid filling material from the pump 1 to the container 6 so as to fill the container 6 with a predetermined amount of the liquid filling material. And a pipe line 4 for operating the constant amount filling machine, wherein the pipe line 4 is a main pipe line 4 connected to the pump 1.
0, a first pipeline 41 branched from the main pipeline 40 at the branch portion 4a to supply the liquid filling to the container 6, and a second pipeline 4 branched from the main pipeline 40 at the branch portion 4a.
2, the first conduit 41 is provided with a first valve body 41a for opening and closing the conduit 4, and the second conduit 42 is provided with a second valve body 42a for opening and closing the conduit 4. The second pipeline 42 is filled with the liquid filling inside when the pump 1 is driven, and the liquid filling inside is supplied to the first pipeline 41 side when the driving of the pump 1 is stopped. Is to be provided.

In the constant quantity filling machine having the above structure,
When the pump 1 is driven, the liquid filling is filled into the container 6 via the main pipe 40 and the first pipe 41, and the liquid filling is supplied into the second pipe 42. Then, when the driving of the pump 1 is stopped, the liquid filling in the second pipeline 42 is supplied to the first pipeline 41 side, so that the first pipeline 41
Thus, the container 6 is filled with the liquid filling material. Therefore, even after the driving of the pump 1 is stopped as described above after filling the lower limit set amount of the liquid filler less than or equal to the predetermined amount, at least the amount of the liquid filler in the second pipeline 42 is the liquid filler. Can be filled, and then the first valve body 41a is closed after a predetermined amount of liquid filling is filled, whereby the filling work into the container 6 is completed. Even if the pump 1 is stopped after the lower limit set amount is filled in this way, the filling work can be performed, so that the time required to rotate the motor of the predetermined pump 1 at a low speed as in the conventional case is shortened. In addition to this, it is possible to set the lower limit set amount close to the predetermined amount to be filled. Further, when the container 6 is filled with a predetermined amount of liquid filling after the pump 1 is stopped, the first valve body 41
By closing a, it becomes possible to more accurately approximate the filling amount to the predetermined amount, and therefore the filling accuracy can be further increased.

According to the second aspect of the invention, as described in the third aspect, when the pump 1 is driven, the first valve body 41a is open and the second valve body 42a is closed. Yes, when the container 6 is filled with a liquid filling of a predetermined amount or less, the driving of the pump 1 is stopped, the second valve body 42a is opened, and the liquid filling of the second pipeline 42 is changed to the first pipeline. The first valve body 41a and the second valve body 41a and the second valve body 41a are closed so that the first valve body 41a is closed when the container 6 is filled with a predetermined amount of the liquid filler by flowing into the first pipeline 41. It is preferable that the valve body 42a be controlled. Further, in the quantitative filling machine, the pump 1, the first valve body 41a and the second valve body 4 are used.
2a is preferably provided with control means such as a controller, and it is preferable that the control means is provided with a measuring means such as a weighing machine for measuring the container 6 filled with the filling. The means is preferably provided so as to control the pump 1 and the like based on the measurement result of the measuring means.

Further, in the constant quantity filling machine according to the present invention, as described in claim 4, the pipe line 4 is capable of adjusting the supply speed of the liquid filling after the driving of the pump 1 is stopped. It is preferable to have Here, various kinds of adjusting means 42b can be adopted,
In the case of claim 2 or 3, means for adjusting the speed of the supply from the second pipe line 42 to the first pipe line 41 after the driving of the pump 1 is stopped, for example, an open end rather than the second valve body 42a. It is possible to configure from the air regulating valve 42b provided on the part side. By providing such an adjusting means 42b, it becomes possible to accurately control the supply amount of the liquid filling to the container 6 after the pump 1 is stopped.

Further, in the method for quantitatively filling a liquid filling according to the present invention, as described in claim 4, a quantitative filling machine for filling the container 6 with the liquid filling from the pump 1 through the pipe line 4. According to a predetermined amount filling method of filling a predetermined amount of liquid filling into the container 6, the pump 1 is driven at the start of filling to fill the container 6 with the lower limit set amount of liquid filling below the predetermined amount. At this time, the driving of the pump 1 is stopped, and the liquid filling is filled in the container 6 by a natural drop from the pipe line 4 until a predetermined amount of the liquid filling is filled.

According to the quantitative filling method having the above structure,
The pump 1 is driven so that the lower limit set amount of the liquid filling is supplied to the conduit 4
After that, the pump 1 is stopped, and the container 6 is filled with the liquid filling material from the conduit 4 by natural fall, and the filling operation is completed. Thus, even after the pump 1 is stopped after the container 6 is filled with the lower limit set amount, the filling work is performed, and the time required to rotate the motor of the predetermined pump 1 at a low speed as in the conventional case is shortened. In addition, the lower limit set amount can be set close to the predetermined amount to be filled.

In the present invention, for example, the pipe line 4
Is a line for supplying the liquid filling to the container 6 by the pump 1 and a line for connecting the liquid filling to the container 6 by a natural drop which is connected to a large container arranged above. It is also possible to employ a method in which the liquid filling material in the large container is supplied to the container 6 via the pipe 4 after the lower limit set amount is filled and the driving of the pump is stopped. However, for reasons such as the need for a large container to be arranged above, the pipe line 4 connected to the pump 1 is branched at the branching portion 4a, and when the pump 1 is driven, one of the branched pipe lines 41 becomes a container. 6 is filled with the liquid filling material, and the inside of the other conduit 42 is filled with the liquid filling material.
It is preferable to employ a method of supplying the liquid filling to the container 6 by causing the liquid filling inside the other pipe line 42 to flow into the branch portion 4a side by its own weight at the time of stopping.

That is, the liquid filling material according to the present invention as defined in claim 5 is filled with a predetermined amount of the liquid filling material by a fixed quantity filling machine for filling the liquid filling material into the container 6 from the pump 1 through the conduit 4. 6 is a quantitative filling method for filling a pipe 6 with the pipe 4 from a main pipe 40 connected to the pump 1 to a container 6
First pipeline 41 and second pipeline 42 for supplying liquid filling to
To the first pipe line 41.
A second valve body 42a that opens and closes the conduit 4 and a second valve body 42a that opens and closes the conduit 4 in the second conduit 42.
When the filling is started, the first valve body 41a is opened, the second valve body 42a is closed, the pump 1 is driven, and when the container 6 is filled with a liquid filler of a predetermined amount or less, , The driving of the pump 1 is stopped, the second valve body 42a is opened, and the liquid filling in the second pipeline 42 is caused to flow into the first pipeline 41, and the container 6 is filled with a predetermined amount of the liquid filling. It is characterized in that the first valve body 41a is closed at the time of opening.

According to the quantitative filling method having the above structure,
When the pump 1 is driven, the liquid filling is filled into the container 6 via the main pipe 40 and the first pipe 41, and the liquid filling is supplied into the second pipe 42. And pump 1
When the driving of No. 2 is stopped, the liquid filling in the second pipe 42 is supplied to the first pipe 41 side, so that the container 6 is filled with the liquid filling from the first pipe 41. Then, after the predetermined amount of liquid filling is filled, the first valve body 41a is closed to complete the filling work into the container 6.
Thus, even after the pump 1 is stopped after the container 6 is filled with the lower limit set amount, the filling work is performed, and the time required to rotate the motor of the predetermined pump 1 at a low speed as in the conventional case is shortened. In addition, the lower limit set amount can be set close to the predetermined amount to be filled. In addition, since the first valve body 41a is closed when the container 6 is filled with a predetermined amount of the liquid filler after the pump 1 is stopped, the filling amount can be more accurately approximated to the predetermined amount. It becomes possible, and therefore, the filling accuracy can be further improved.

Further, in the constant quantity filling machine according to the present invention, as described in claim 7, when the liquid filling is supplied after the driving of the pump 1 is stopped, the feeding speed adjusting means 4 is provided.
It is preferable to adopt a configuration adjusted by 2b. Here, various kinds of adjusting means 42b can be adopted, and in the case of claim 5, the speed of supply from the second pipeline 42 to the first pipeline 41 after the driving of the pump 1 is stopped. It is possible to configure the adjusting means, for example, the air adjusting valve 42b provided on the open end side of the second valve body 42a. By providing such an adjusting means 42b, it becomes possible to accurately control the supply amount of the liquid filling to the container 6 after the pump 1 is stopped.

[0021]

BEST MODE FOR CARRYING OUT THE INVENTION <First Embodiment> A first embodiment of a quantitative filling machine according to the present invention will be described below with reference to the drawings. 1 shows the overall structure of the tube filling machine, FIG. 2 is an explanatory view schematically showing the flow path of the filling machine, and FIG. 3 shows the drive of the pump, the first valve body and the first valve body. It is an explanatory view for explaining control of opening and closing of a two-valve body. Figure 4
FIG. 4 is a control block diagram of a tube filling machine.

The quantitative filling machine of this embodiment comprises a pump 1 and
A pipeline 4 for filling the container 6 with the liquid supply supplied by the pump 1, a weighing machine 2 for measuring the weight of the container 6, and a controller 7 for controlling the drive of the pump 1. I have it.

The weighing machine 2 is provided with a weight setting button 21, and the weighing machine 2 is provided so as to transmit various signals to the controller 7 according to the weight set by the weight setting button. ing. Specifically, it is possible to set a predetermined amount to be filled and a lower limit set value equal to or less than the predetermined amount,
It is provided to transmit various signals to the controller 7 when the weight reaches a predetermined amount or a lower limit set value.

As the pump 1, for example, a well-known tube pump 1 can be adopted, and the tube pump 1 has a motor 11
A rotary head 13 is mounted on a rotary shaft 12 extending from the rotary head 13, a plurality of rollers 14 are supported by the rotary head 13, and a semi-arcuate tube receiving plate 15 is arranged around the outer circumference of the rotary head 13. A tube 16 made of an elastic material is detachably interposed between the receiving plate 15 and the rotary head 13, and the rotary head 14 is rotated as the motor 11 is driven, whereby each roller 14 is rotated. Thus, the liquid filler is transferred while intermittently squeezing the tube 16.

One end of the tube 16 of the tube pump 1 in the length direction is projected into a large container 5 such as a drum can filled with a liquid filling, while the other end in the length direction is described later. The tube 40 (main tube) that constitutes the main pipeline is continuously provided.

The above-mentioned tube pump 1 can be easily cleaned by passing a cleaning liquid through the tube 16, and in particular, in the case of filling a liquid filling containing perfume and various germs, When it is difficult to clean the tube 16, it is possible to perform filling work of different liquid fillings using the same tube pump 1 by simply replacing the tube 16 with a new one, and further, passing through the tube pump 1. In doing so, it is possible to prevent the viscosity change from occurring without the liquid filler being kneaded.

The pipe line 4 is a main pipe line 40 to which the liquid filling is directly supplied from the pump 1, and the main pipe line 40.
From the first branch 41 and the second branch 42 that are branched at the branch portion 4a, and each pipeline 4 is composed of a flexible tube (hereinafter, each main tube 40, first tube 41, second tube 4
2). Here, the branch of each pipe line 4 is made by a branch member 4a having three connection ports. Specifically, one end of the main tube 40 is continuously provided from the tube pump 1, and the other end is connected to one connection port of the branch member 4a. Further, one end of the first tube 41 and one end of the second tube 42 are connected to the other two connection ports of the branch member 4a, respectively. The other end of the first tube 41 faces the opening of the small container 6 placed on the weighing machine 2. Further, the other end side of the second tube 42 is open, and the open portion of this other end is provided so as to be located above the branching part 4a. One end of the main tube 40 is connected to the side connection port of the branch member 4a in the shape of a ring, one end of the first tube 41 is connected to the lower connection port of the branch member 4a, and the upper connection port of the branch member 4a is connected. One end of the second tube 42 is connected, that is, the second tube 42 is provided upward from the branch portion 4a, and the liquid filler in the second tube 42 is supplied to the first tube 41 by its own weight. It is provided to be done. A pulsation preventer 40a is interposed in the main pipe 40. The pulsation preventer 40a
Is for preventing the pulsation that occurs when each of the rollers 14 transfers the liquid filler while squeezing the tube 16 of the tube pump 1.

The first conduit 41 and the second conduit 42 are also provided.
Are provided with valve bodies 41a and 42a for opening and closing the pipeline 4, respectively. Here, the first valve body 41a that opens and closes the first conduit 41 is provided so as to open and close near the end of the first tube 41 that faces the opening of the container 6.

The second valve body 4 for opening and closing the second pipe line 42
2a is provided so as to open and close near the upper end of the second tube 42. As a result, the second conduit 42 is provided such that a certain amount of liquid filling is filled between the branch portion 4a and the second valve body 42a. That is,
The second conduit 42 is provided with a temporary filling part for temporarily filling the liquid filling part, and when the pump 1 is driven by closing the second valve body 42a, the temporary filling part is provided. It is provided so that when the liquid filling is filled, the driving of the pump 1 is stopped and the second valve body 42a is opened, the liquid filling of the temporary filling portion is supplied to the first conduit 41 by its own weight. ing.

Here, in the present embodiment, each valve element 41
a and 42a are walls (not shown) provided adjacent to the tubes 41 and 42, and a moving body that can open each tube by pressing each tube toward the wall to close it and releasing this pressing. (Not shown). In addition,
As the moving body is controlled by the controller 7, the opening and closing of the valve bodies 41a and 42a are controlled by the controller 7. Above valve bodies 41a, 42a
Can be easily washed by passing a washing liquid through the tubes 41, 42, and in particular, when the tubes 41, 42 are filled with a liquid filling containing a fragrance or miscellaneous bacteria. When it is difficult, it is possible to construct different valve bodies using the same moving body by simply replacing the tubes 41 and 42 with new ones.

Further, in the second pipeline 42, an air regulating valve 42 for regulating the speed of the liquid filler supplied from the second pipeline 42 to the first pipeline 41 after the pump 1 is stopped.
b is provided. That is, the air regulating valve 42b is
It corresponds to the adjusting means according to claim 4 or 7. The air regulating valve 42b is provided on the open end side of the second valve body 42a of the second pipeline 42, the second valve body 42a is in an open state, and the liquid filling inside the second pipeline 42 is This is for adjusting the suction speed of the air sucked into the second pipeline 42 when being supplied to the first pipeline 41. The adjusting valve 42b includes
It has a setting means such as a dial for setting the suction speed, and the desired suction speed can be set by the setting means.

The controller 7 is built in the control box 3, and the control box 3 includes a start switch 31 for starting the rotation of the motor 11 of the tube pump 1 and a stop switch for stopping the rotation of the motor 11. 32 etc. are provided.

Based on the weighing result of the weighing machine 2, the controller 7 provided in the control box 3
Rotation instruction means 71 for instructing rotation of the motor 11,
Rotation stop instruction means 72 for stopping the rotation of the motor 11
It has and. Further, the controller 7 includes a first opening / closing instruction means 73 for controlling opening / closing of the first valve body 41a and a second opening / closing instruction means 7 for controlling opening / closing of the second valve body 42a.
It is equipped with 4.

On the input side of the controller 7, the start switch 31 and the stop switch 3 are connected.
2 switches and the weighing machine 2 are connected, and the motor 1 of the tube pump 1 is connected to the output side of the controller 7.
1, and the drive sources of the moving bodies of the first valve body 41a and the second valve body 42a are connected.

Next, the tube type filling machine of the present embodiment has the above-mentioned structure. Next, a method for filling the liquid filling material into the small container 6 using the filling machine will be described.

When performing the filling operation of the liquid filling into the small container 6, first, the weight of the liquid filling to be filled into the small container 6 is set by the setting buttons 21 of the weighing machine 2. At this time, in addition to the weight of the liquid filling to be filled, a lower limit set value (weight of the liquid filling) for stopping the supply by the pump 1 is set as described later. Further, the adjusting valve 42b is also set to a desired level (air suction speed) in order to adjust the supply speed of the liquid filling after the pump 1 is stopped.

Then, the small container 6 is placed on the weighing machine 2, the tip side of the first tube 41 is exposed to the opening of the small container 6, and then the start switch 31 is turned on. By doing so, filling is started. When the filling is started in this way, an output signal is output from the rotation instruction means 71 of the controller 7, and at the same time, an output signal is output from the first opening / closing instruction means 73 and the second opening / closing instruction means 74. . Then, based on these signals, almost simultaneously with the rotation of the motor 11 of the tube pump 1, the first valve body 41a shifts to the open state, the first pipe line 41 is opened, and the second valve body 42a. Shifts to the closed state, and the second conduit 42 is closed. As a result, the container 6 passes through the main pipeline 40 and the first pipeline 41.
Filling is started, and at the same time, the filling material is supplied between the second valve body 42a of the second conduit 42 and the branch portion 4a (temporary filling portion). After the filling of the above-mentioned portion (temporary filling portion) of the second pipeline 42 is completed, only the filling of the container 6 is performed.

When the weighing by the weighing machine 2 reaches a certain value equal to or less than a predetermined amount, that is, when the liquid filling is filled in the small container 6 by a lower limit set amount, the weighing result by the weighing machine 2 is obtained. Based on the above, the rotation stop instruction means 73 of the controller 7 outputs an output signal, and the second opening / closing instruction means 74 outputs an output signal. Based on these signals, the motor 11 is stopped, the second valve body 42a is moved to the open state, and the second conduit 42 is opened. Since the second valve body 42a shifts to the open state in this way, the filling material filled in the second pipe line 42 (between the branch portion 4a and the second valve body 42a) is emptied by the first pipe. It is supplied into the line 41, whereby the filling in the first line 41 is supplied to the container 6. Further, as described above, when the liquid filling inside the second conduit 42 is supplied to the first conduit 41, air flows into the second conduit 42 from the open end. The speed of the air flowing into the second conduit 42 is adjusted by the adjusting valve 42b.
Therefore, the supply rate of the liquid filling from the second pipeline 42 to the first pipeline 41 is adjusted, and thus the supply rate of the liquid filling to the container 6 is also adjusted. In addition, in response to the output signal from the rotation stopping means of the controller 7,
The motor 11 is stopped, but until the motor 11 is stopped, a certain amount of liquid filler is discharged from the main pipe line 40 to the first pipe line 4.
1 and then the rotation of the motor 11 is completely stopped, so that the supply from the main pipeline 40 is stopped.

Then, the weighing machine 2 is placed in the small container 6.
When the predetermined amount of the liquid filling is filled, a signal is output from the first opening / closing instruction means 73, and the first valve body 41a
Shifts to the closed state, and the first conduit 41 is closed.
As a result, the container 6 is filled with a predetermined amount of filling material, and the filling operation is completed. When the first valve body 41a is closed, the second opening / closing instruction means 7
It is also possible to employ a configuration in which a signal is output from the control unit 3, the second valve body 42a is moved to the closed state, and the second conduit 42 is opened.

As described above, when the container 6 is filled with the lower limit set amount of filling material, the motor 11 is stopped based on the weighing result of the weighing machine 2, and the first pipe is fed from the second pipe line 42. By supplying the filling material to the passage 41, supplying the filling material from the first pipeline 41 to the container 6, and then closing the first valve body 41a when a predetermined amount of the filling material is filled. Since a series of filling work is performed, the filling work of the liquid filling into the small container 6 can be performed quickly and efficiently, and moreover, the predetermined amount preset in the container 6 by the weighing machine 2 can be achieved. Can be accurately and automatically filled. Specifically, when a predetermined amount of 1 liter was filled, the filling time was 8 seconds, and the error was within the range of 1 milliliter. It is clear that in the case of the conventional device, the filling time was 12 seconds, and the error was within the range of 3 ml, so that both the filling accuracy and the speed were superior. .

Further, since the predetermined amount of liquid filling can be filled accurately and promptly by the above method, it is not always necessary to reverse the rotation of the motor as in the conventional filling machine, and therefore, as the control means. It is possible to simplify the configuration and control of the controller.

<Other Embodiments> The above embodiment has the above-mentioned advantages because it is configured as described above, but the present invention is not limited to this.
The design can be appropriately changed within the scope intended by the present invention.

That is, in the above embodiment, after the driving of the pump 1 is stopped, as a method for filling the container 6 with the liquid filling material by a natural drop, the pipe line 4 is branched at the branching portion 4a, and the second branched portion is formed. Although the method of supplying the liquid filling in the pipe line 42 to the first pipe line 41 has been described, the present invention is not limited to this.

That is, for example, the one shown in FIG. 5 is also within the scope of the present invention. The quantitative filling machine shown in FIG. 5 is similar to the above-described embodiment in that the first large-sized container 51 storing the liquid filling and the pump for supplying the liquid filling in the large-sized container 51 to the container 6. 1, a pipe line 43 connected to the pump 1 (hereinafter, referred to as “pump side pipe line”), and a weighing machine 2 for weighing the weight of the container 6 and arranged above the container 6 in a liquid state. A second large container 52 for storing the filling, and a pipe line 44 (hereinafter, referred to as a “spontaneous falling side pipe line”) for supplying the liquid filling in the large container 52 to the container 6 are provided. There is. The pump side conduit 43 and the natural fall side conduit 44 are provided with valve bodies 43a and 44a, respectively. Each valve body 43
The opening / closing of a and 44a and the driving of the pump 1 are controlled by a controller, and the controller performs the above control based on various signals of the weighing machine. In the illustrated example, one end of the tube of the pump 1 may be inserted into the second large container 52 disposed above to make the large container common. Further, it is also possible to achieve commonality of the pipelines, for example, by merging the two pipelines so that the ends of the pipelines facing the container 6 are shared. It is also possible to provide the valve body 43a of the pump side pipe line 43 so as to stop the supply of the liquid filling from the pipe line 43 by the reverse rotation of the motor of the pump 1 or the like. Further, adjusting means for adjusting the supply speed can be provided in the natural-falling-side conduit 44, for example, by providing a throttle valve or the like for pressing the tube forming the natural-falling-side conduit 44 to change its inner diameter. Is also possible.

According to the quantitative filling machine shown in FIG. 5, the pump 1 is opened by opening the valve body 43a at the start of filling.
Is driven to supply the liquid filler in the first large container 51 to the container 6 via the pump side conduit 43. At the start of the filling, the valve body 44a is opened and the liquid filling in the second large container 52 is spontaneously dropped to naturally drop the side pipe 4
It is also possible to supply to the container 6 via 4. After that, when the lower limit set amount of the liquid filling is filled in the container 6, the motor 11 is stopped, the valve body 43a is moved to the closed state, and the supply from the pump side conduit 43 is stopped. Then, the valve body 44a is opened, and the liquid filling material in the second large-sized container 52 is supplied to the container 6 by its own weight via the natural-fall side conduit 44. Then, when the container 6 is filled with a predetermined amount of the liquid filler, the valve body 44a on the free fall side is moved to the closed state, and the free fall side pipeline 44 is closed. As a result, the container 6 is filled with a predetermined amount of filling material, and the filling operation is completed.

According to the example shown in FIG. 5, the container 6 can be filled with the liquid filler up to a predetermined amount by spontaneous fall after the pump is stopped, but it is necessary to arrange the large container 52 above, and two large containers are required. When the containers 51 and 52 are provided, it is necessary to fill each with a liquid filling, which has a drawback that the management becomes complicated. Therefore, as in the first embodiment, the pipe line 4 connected to the pump 1 has the branch portion 4a.
And the one of the branched pipes 41 is connected to the container 6
Is provided to supply a liquid filling to the other pipe line 4
It is preferable that 2 is provided so that the liquid filling is filled inside when the pump 1 is driven and the liquid filling inside flows into the branch portion 4a side by its own weight when the pump 1 is stopped.

Further, in the first embodiment described above, the valve bodies 41a and 42a are described in which the moving body pushes or releases the tube based on the signal from the controller 7. However, in the present invention, the valve bodies are The configuration is not limited to the above, and an appropriate one such as an electromagnetic opening / closing valve can be adopted.

Further, although it is preferable to employ the tube type pump 1 as in the above-mentioned embodiment, the present invention is not necessarily limited to this, and in the present invention, an appropriate pump 1 is adopted. be able to.

Further, in the above embodiment, the controller 7 is not limited to that of the above embodiment, and it is possible to adopt an appropriate control means.

Further, in the above embodiment, the pump 1
Although the adjusting means 42b capable of adjusting the supply rate of the liquid filler after the driving of (3) is provided has been described, the adjusting means is not an essential constituent element in the present invention.
Further, even when the adjusting means is provided, the adjusting means is not limited to the above embodiment, and various adjusting means can be adopted. For example, the second valve body 42a in the first embodiment can be made to function as an adjusting means. Specifically, when the second valve body 42a is in the open state, the second pipe line 42 is not completely opened. In addition, it is also possible to provide so as to control the supply rate of the liquid filling from the second conduit 42 by limiting the degree of openness.

[0051]

As described above, the present invention fills a container with a liquid filling of a predetermined amount or less by driving a pump,
The liquid filling can be supplied to the container even after the driving of the pump is stopped. Therefore, it is possible to reduce the time required to rotate the motor of a predetermined pump at a low speed as in the conventional case. In addition to this, it is possible to set the lower limit set amount close to the predetermined amount to be filled.

[Brief description of drawings]

FIG. 1 is a front view showing the overall structure of a tube type filling machine according to a first embodiment of the present invention.

FIG. 2 is an explanatory view schematically showing a flow path of the tube filling machine.

FIG. 3 is an explanatory diagram for explaining drive of a pump of the tube filling machine and control of opening / closing of a first valve body and a second valve body.

FIG. 4 is a control block diagram of the tube filling machine.

FIG. 5 is an explanatory view schematically showing a flow path of a tube type filling machine according to another embodiment of the present invention.

[Explanation of symbols]

1 tube pump 2 weighing machine 4 pipelines 4a bifurcation 40 main pipeline 41 first pipeline 41a valve body 42 Second pipeline 42a valve body 42b Adjusting means (air adjusting valve) 5 large containers 6 containers 7 controller

Claims (7)

[Claims] 1. A pump (1) for filling a container (6) with a predetermined amount of liquid filler, and a pipe () for transferring the liquid filler from the pump (1) to the container (6). 4), wherein the pump (1) is stopped when the liquid filling material having a lower limit set value equal to or lower than a predetermined amount is filled in the container (6), ) Is stopped, the pipe line (4) is provided so that the liquid filling is filled in the container (6) by a natural drop. 2. A pump (1) for filling a predetermined amount of liquid filling into a container (6), and a pipe () for transferring the liquid filling from the pump (1) to the container (6). 4) is a constant quantity filling machine, wherein the pipe (4) is a main pipe (40) connected to the pump (1), and is branched from the main pipe (40) at a branch portion (4a). A first conduit (41) for supplying a liquid filling to the container (6) and a branching part (4) from the main conduit (40).
a) has a second pipeline (42) branched, and the first pipeline (41) is provided with a first valve body (41a) for opening and closing the pipeline (4), In the pipeline (42),
A second valve body (42a) for opening and closing the pipeline (4) is provided, and the second pipeline (42) is filled with a liquid filling material inside the pump (1) when the pump (1) is driven. A constant quantity filling machine, characterized in that the liquid filling therein is provided so as to be supplied to the first pipeline (41) side when the driving of 1) is stopped. 3. The constant quantity filling machine according to claim 2, wherein the first valve body (41a) is in an open state and the second valve body (42a) is in a closed state when the pump (1) is driven. When the container (6) is filled with a predetermined amount or less of the liquid filler, the driving of the pump (1) is stopped, and the second valve body (42a) is stopped.
And the liquid filler in the second conduit (42) flows into the first conduit (41) to fill the container (6) with a predetermined amount of the liquid filler. The pump (1), the first valve body (41a) and the second valve body (42) so as to close the (41a).
A quantitative filling machine characterized in that a) is controlled. 4. The quantitative filling machine according to claim 1, wherein the conduit (4) is capable of adjusting a supply speed of the liquid filling after the driving of the pump (1) is stopped. Adjustment means (42b)
A quantitative filling machine characterized by having. 5. A quantitative filling machine for filling a liquid filling material into a container (6) from a pump (1) through a pipe line (4),
A predetermined amount filling method for filling a predetermined amount of liquid filling into a container (6), wherein at the start of filling, the pump (1) is driven to set a lower limit set amount of liquid in the container (6) to a predetermined amount or less. When the filling is filled, the driving of the pump (1) is stopped, and the liquid filling is filled in the container (6) by spontaneous fall from the pipe line (4) until a predetermined amount of the liquid filling is filled. A quantitative filling method characterized by: 6. A quantitative filling machine for filling a liquid filling material into a container (6) from a pump (1) through a conduit (4),
A quantitative filling method for filling a predetermined amount of liquid filling into a container (6), wherein the conduit (4) is liquid in a container (6) from a main conduit (40) connected to a pump (1). A first pipe (41) for supplying a filling and a second pipe (42) are branched at a branching portion (4a) to open and close the pipe (4) in the first pipe (41); One valve body (41a) is provided, and a second valve body (42a) that opens and closes the pipe line (4) is provided in the second pipe line (42). At the start of filling, the first valve body (41a) is With the second valve body (42a) closed and the pump (1) driven, the pump (1) is driven when the container (6) is filled with a liquid filler of a predetermined amount or less. Stop, second valve body (42a)
Is opened to allow the liquid filling in the second conduit (42) to flow into the first conduit (41), and when the container (6) is filled with a predetermined amount of the liquid filling, the first valve body A method for quantitatively filling a liquid filling material, which comprises closing (41a). 7. The quantitative filling method according to claim 5, wherein, when the liquid filling is fed after the driving of the pump (1) is stopped, the feeding speed is adjusted by the adjusting means (42b). A quantitative filling method characterized by the above.