JPH10218102A - Powder filling equipment and method thereof - Google Patents

Abstract

PROBLEM TO BE SOLVED: To restrain variation in filling quantity of powder into a vessel, avoid an excessive filling to the utmost relative to the aimed filling quantity, and reduce costs for goods to be filled with powder. SOLUTION: The equipment is provided with a main filling machine 3 for filling an aimed quantity of powder in a vessel, measuring means 4 for measuring a filling quantity of the filling vessel filled with powder, a filling vessel selection device 5 for selecting the filling vessel having a less filling quantity than the aimed quantity tin terms of its filling quantity, and a correction filling machine 7 for filling powder correctly to be the aimed quantity on the basis of the filling quantity relative to only filling vessel selected by the filling vessel selection device 5.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a powder filling facility and method, and more particularly to a technique for filling a plurality of containers with a powder having a uniform weight.

[0002]

2. Description of the Related Art In a case where a plurality of containers are filled with a target amount of powder, a reference amount exceeding the target amount is conventionally set in a filling machine in consideration of variation in the filling amount. The generation of containers with a filling amount lower than the target amount, that is, defective filling products, has been suppressed. However, in the above filling method, since the reference amount of the filling machine must be set so that the lower limit of the variation of the filling amount is equal to or more than the target amount, the amount of overfilled powder is large and the powder is consumed unnecessarily. Is done. In particular, in detergents and the like that indicate the filling weight of the powder detergent in the container,
Unnecessary consumption of powder due to the above overfilling is one of the factors that hinder cost reduction.

[0003] The present invention has been made in view of the above problems, and has the following objects. (1) To provide a powder filling equipment and method capable of suppressing variations in the amount of powder charged into a container. (2) To provide a powder filling equipment and method capable of minimizing overfilling with respect to a target filling amount. (3) To provide a powder filling equipment and method capable of reducing the cost of a product filled with powder.

[0004]

In order to achieve the above object, a main filling machine for filling a container with a target amount of powder, and a filling machine filled with the powder by the main filling machine are used as an apparatus. A measuring means for measuring a filling amount of the container, a filling container sorting device for sorting a filling container filled with a powder less than a target amount based on the filling amount, and a filling container sorted by the filling container sorting device Only a means including a correction filling machine for correcting and filling the powder so as to reach the target amount based on the filling amount is employed.

[0005] Further, as a method means, a step of filling a container with a target amount of powder, a step of measuring the filling amount of the powder, and a step of selecting a container filled with powder less than the target amount. And a step of correcting and filling the powder to a target amount based on the filling amount measured in the sorted containers.

When a target amount of powder is filled into a container by the main filling machine, it is effective to adjust the filling amount of the next container based on the filling amount of the previously filled container. By adopting such means, the filling amount by the main filling machine can be made closer to the target amount, and the burden on the correction filling performed in the next step is reduced.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a powder filling facility and method according to the present invention will be described below with reference to FIGS. The present embodiment relates to a powder filling equipment and method for filling a powder such as a box into a container such as a box by a target filling weight (target amount).

First, the configuration of the present embodiment will be described with reference to FIG. In this figure, reference numerals 1, 1a to 1f denote container transport routes. Containers are transport route 1, 1a-1
f, and are sequentially conveyed from upstream to downstream in the direction of the arrow. Reference numeral 2 denotes a turntable for changing the direction of transport of the containers to the direction of the rotary filling machine 3 (main filling machine).

The rotary filling machine 3 includes three auger-type filling heads (hereinafter, simply referred to as filling heads) 3a to 3c, and includes a filling head 3a → a filling head 3b → a filling head 3
c each of the filling heads 3a to 3c
Is filled with a predetermined weight of the powder cleaning agent, and as a whole, the target cleaning weight is filled with the powder cleaning agent. Each of the filling heads 3a to 3c is configured to rotate the auger a predetermined number of times to fill a container with a predetermined weight of the powdered cleaning agent. Of these, the filling heads 3a and 3b have a fixed amount of rotation, and the filling head 3c is The rotation amount is configured to be variable.

Reference numeral 4 denotes an automatic checker (measuring means) for measuring the filling weight (filling amount) of the powder detergent filled in the container by the rotary filling machine 3.
The automatic checker 4 is configured to output the filling weight to the rotary tendency controller 5. The rotary tendency controller 5 performs feedback control of the filling in the filling head 3c based on the filling weight, and outputs the filling weight to a correction tendency controller described later.

The rotary tendency controller 5 adjusts the rotation speed of the filling head 3c according to the filling weight to make the filling weight of the powder detergent uniform. Reference numeral 6 denotes a sorting device (filling container sorting device) for transferring containers sequentially loaded based on the filling weight input from the automatic checker 4 via the rotary tendency controller 5 to any of the transport routes 1a to 1c. Distribute and send.

Reference numeral 7 denotes an auger type correction filling machine, reference numeral 8 denotes a correction automatic checker, and reference numeral 9 denotes a correction tendency controller, which are sequentially provided on the transport route 1a in the above order. The correction tendency controller 9 calculates a correction filling weight based on the filling weight input from the automatic checker 4, and controls the correction filling machine 7 based on the correction filling weight.

The correction filling machine 7 has one auger-type filling head, and corrects and fills the container with the above-described correction filling weight of the powdered detergent under the control of the correction tendency controller 9. The auger diameter of the correction filling machine 7 is formed smaller than the auger diameter of each of the filling heads 3a to 3c of the rotary filling machine 3 so that a relatively small amount of powder cleaning agent can be filled into the container with high accuracy. .

The correction automatic checker 8 includes a correction filling machine 7
Then, the final filling weight in which the powder cleaning agent is corrected and filled in the container is measured and output to the correction tendency controller 9. Reference numeral 10 denotes a sorting device, which sends out a container to either the transport route 1d or the transport route 1e based on the final filling weight input from the automatic correction checker 8 via the correction tendency controller 9. Reference numeral 11 denotes a merging device, which is a transport route 1b.
And the transport route 1d are merged, and each transport route 1b,
1d transport route for containers transported by 1d
f.

Next, a filling method using the above-described powder filling equipment will be described with reference to FIGS. When operating the powder filling equipment, first, the target filling weight R and its allowable range (set amount range) are set as target filling values of the powder detergent into the container. (Not shown). Then, the main filling shown in FIG. 2 is performed first (step S1).

For example, when the target filling weight R is 1500 g, the filling heads 3a and 3b each supply 500 g.
(Total 1000 g) of powdered detergent is filled into the container, followed by 500 g (total 1500) by the filling head 3c.
g) The powder detergent is filled in a container. Then, the total filling weight (main filling weight) of the container is measured by the automatic checker 4 (step S2).

In this case, the rotary tendency controller 5 controls the filling head 3c based on the main filling weight of the container previously filled with the powder detergent and measured by the automatic checker 4.
To adjust the filling amount. For example, the filling weight exceeding the set amount range for three consecutive times is determined by the automatic checker 4.
When weighed by the rotary trend controller 5,
Subsequently, the filling amount of the container to be filled by the filling head 3c is reduced with respect to the filling amount up to that time, and the final main filling weight by the rotary filling machine 3 is controlled so as to be within the set amount range. That is, the rotary tendency controller 5 calculates an excess / deficiency amount of the main filling weight of the previously filled container with respect to the set amount range, and outputs the data of the excess / deficiency amount to the rotary filling machine 3. Then, the rotary filling machine 3 adjusts the rotation amount of the auger of the filling head 3c based on the data so that the main filling weight of the powder cleaning agent falls within the set amount range.

In this way, the rotary filling machine 3 fills the container with the powdered detergent so that the main filling weight is within the set amount range, and the main filling weight is shown in FIG. It may fluctuate as shown in a). Sorting device 6
Distributes the containers filled with the powder detergent in this manner to any one of the transport routes 1a to 1c based on the main filling weight measured by the automatic checker 4.

That is, a container whose main filling weight is within the set amount range is sent to the transfer route 1b, and a container within the correction amount range, that is, a container which can be corrected and filled by the correction filling machine 7, is sent to the transfer route 1a. A possible range, that is, a container that cannot be corrected and filled, is sent out to the transport route 1c and discharged out of the system, that is, toward a defective product processing route.

Then, the container fed into the transport route 1a is corrected and filled with the powder detergent by the correction filling machine 7 (step S3). That is, the correction tendency controller 9
Based on the measurement result of the container by the automatic checker 4 input from the rotary tendency controller 5, the rotation amount of the auger of the correction filling machine 7 is controlled to fill the container with the powder detergent slightly exceeding the target filling weight R. To be controlled.

In FIG. 3A, for example, when the powder detergent having a weight of p1 is filled in the container, the correction tendency controller 9 determines the weight (R + α) slightly exceeding the target filling weight R and the weight p1. The difference (target correction weight) is calculated, and the correction filling machine 7 is controlled so as to fill the container with the powder cleaning agent by the target correction weight. As a result, FIG.
As shown in (b), the powder cleaning agent is always filled with a weight (R + α) slightly exceeding the target filling weight R.
Then, the container thus corrected and filled is weighed by the correction automatic checker 8 (step S).
Four).

The correction tendency controller 9 determines whether the correction filling amount by the correction filling machine 7 is out of the predetermined allowable range with respect to the target correction weight based on the measurement result of the correction automatic checker 8. Controls the correction filling machine 7 by adding a correction amount to the target correction weight, and further controls the weight (R
+ Α) operates so that each container is filled with a powder detergent.

The container filled with the powder detergent is conveyed to the sorting device 10 and sent out to the conveyance route 1d or 1e based on the measurement result of the correction automatic checker 8. That is, the containers within the set amount range are sent to the transport route 1d as non-defective products,
Containers outside the set range are sent to the transport route 1e as defective products. The container sent out to the transport route 1d is combined with the container (which has been determined to be a good product as a result of the previous main filling) which has been transported along the transport route 1b by the merging device 11, and is sent out to the transport route 1f for the subsequent process. It is carried out toward.

In the above embodiment, the powder filling equipment and the method for filling the powder detergent as the powder have been described. However, the present invention is not limited to this, and various powders can be filled in a container. Can be applied to

[0025]

As described above, according to the powder filling equipment and method according to the present invention, a main filling machine for filling a container with a target amount of powder, and the powder is filled by the main filling machine. Measuring means for measuring the filling amount of the filled container, a filling container sorting device for sorting a filling container filled with less than a target amount of powder based on the filling amount, and a sorting device that is sorted by the filling container sorting device. Only the filling container is provided with a correction filling machine that corrects and fills the powder so as to be a target amount based on the filling amount, so that the variation in the filling amount of the powder in the container is suppressed, and the target filling amount is reduced. Overfilling can be minimized. As a result, overfilling is suppressed, and it is possible to reduce the cost of a product filled with powder.

[Brief description of the drawings]

FIG. 1 is a block diagram showing a configuration of an embodiment of a powder filling equipment and a method according to the present invention.

FIG. 2 is a flowchart illustrating the operation of an embodiment of the powder filling equipment and method according to the present invention.

FIG. 3 is an explanatory view showing a change in a powder filling state in one embodiment of the powder filling equipment and method according to the present invention.

[Explanation of symbols]

 1, 1a to 1f Transport route 2 Turntable 3 Rotary filling machine (main filling machine) 3a to 3c Auger filling head (filling head) 4 Auto checker (weighing means) 5 Rotary trend controller (filled container sorting device) 6 Sorting device (filled container sorting device) 7 Correction filling machine 8 Correction automatic checker 9 Correction tendency controller 10 Sorting device 11 Merging device

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Satoshi Sakuma 1-3-7 Honjo, Sumida-ku, Tokyo Inside Lion Engineering Co., Ltd. (72) Fumio Nakamura 3-107 Iwamotocho, Chiyoda-ku, Tokyo No. Akira Toshi Noda, Tokyo Automated Machinery Manufacturing Co., Ltd. (72) Inventor, Tokyo Automated Machinery Manufacturing Co., Ltd. 3-107, Iwamotocho, Chiyoda-ku, Tokyo, Japan Stand 149 Inside the Laboratory of Tokyo Automatic Machinery Works, Ltd.

Claims (2)

[Claims] 1. A main filling machine for filling a container with a target amount of powder, a measuring means for measuring a filling amount of a filling container filled with the powder by the main filling machine, and a powder based on the filling amount. A filling container sorting device that sorts a filling container in which the body is filled less than the target amount, and only the filling container sorted by the filling container sorting device, the powder is supplied to the target amount based on the filling amount. A powder filling equipment, comprising: a correction filling machine that performs correction filling. 2. A step of filling a container with a target amount of powder, a step of measuring the filling amount of the powder, a step of selecting a container filled with powder less than the target amount, A step of correcting and filling the powder to a target amount based on the charged amount measured in the measured container.