JPH08183504A - Filling method into flexible bag - Google Patents

Abstract

PURPOSE: To obtain a filling method into flexible bags, by which the flexible bags becomes uniform in shape when they are released on a table after filled, the operating time period of an airless filling cylinder is shortened and the flexible bags are properly put down into ant outer case. CONSTITUTION: When a bag transfer holder 9 that holds a spout 4 is lifted up to a filling machine 1 side, a table 2 and an airless filling device 5 rise up to a bag filling elevation 12. The airless filling device 5 performs initial shut of a spout path, opening of the spout path and final shut of the spout path at time bag filling elevation 12. When the transfer holder 9 puts down the spout 4 after filling finishes, the table 2 and the filling machine 5 are lowered together to a bag transfer elevation 11.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for filling a flexible bag, which is contained in an outer box such as a cardboard box, with a liquid or a fluid article.

[0002]

2. Description of the Related Art Conventionally, in the case of automatically filling a flexible bag with a liquid or a fluid article, as shown in FIG. The bag 3 is sent in, the spout 4 of the flexible bag 3 is attached to the filling device 1 for filling, and after the filling, the spout 4 is lowered and returned onto the table 2, and this is sent as one filling cycle. The incoming flexible bags 3 are sequentially filled, and the filled flexible bags are sent from the table 2 to the next step, where they are dropped into an outer box.

When the flexible bag 3 is filled, it is necessary to prevent invasion of various bacteria due to air entering the inside of the flexible bag, especially when the filling is a product related to food or the like. Therefore, the air-less filling device 5 is arranged on the table 2 side. The airless filling device 5 has an opening 6 at a portion corresponding to the filling device 1 of the table 2, and supports the airless filling pad 7 and the airless filling pad 7 which are sized so that the opening 6 can be inserted. And an airless fill cylinder 8 for moving up and down. In the airless-filling device 5, the airless-filling cylinder 7 is expanded and contracted so that the airless-filling pad 7 is raised from the opening 6 and is lowered from the raised position, and the flexible bag is opened before the spout is opened. The airless fill pad is applied from below to the spout side, and is applied even after the completion of filling until the spout is closed to close the passage of the spout. Of course,
During filling, the spout passage is opened by waiting below.

A filling cycle of a flexible bag using the airless filling device 5 is shown in FIG. As shown in the drawing, an opening 6 is provided at a position corresponding to the filling device 1 on the table 2, and the air-less filling device 5 is provided so that the opening 6 has the air-less filling pad 7. Step (a) The flexible bag 3 is fed onto the table 2 by the bag moving holder 9 holding the spout 4, and the spout 4 is placed below the filling device 1 (and
(It is also above the airless fill pad 7). Although not shown, a spout 4 is attached to the spout 4 in advance, and a flat flexible bag is conveyed in a closed state. Step (b) Next, the bag moving holder 9 is lifted to mount the spout 4 on the filler 1, and the airless fill cylinder 8 is extended to move the airless fill pad 7 from below the flexible bag 3 to the spout 4 side. And the passage from the spout 4 to the inside of the flexible bag 3 is closed (initial spout passage closed). In the filling device 1, a filling chamber (not shown) is provided around the filling nozzle 1a, and sterilization is performed while holding the spout in the filling chamber to remove a plug from the spout (opening). The spout and the filling nozzle are connected. Step (c) After the spout is mounted on the filling device and the spout and the filling nozzle are connected in the filling chamber, the airless fill pad 7 descends into the opening 6 (end of closing of the initial spout passage). Then, the filling is performed. As described above, the airless fill pad 7 is lowered (opens the spout passage) and is in a standby state below. After the filling in the step (d), the airless fill pad 7 is lifted again, and the spout 4 is pushed from below the flexible bag 3.
It is applied toward the side to close the passage from the spout 4 to the inside of the flexible bag 3 (close the latter-stage spout passage). Then, after the spout is separated from the filling nozzle in the filling chamber, the plug is fitted (capping). After the process (e) is closed, the airless fill pad 7 is opened 6
Descending to (the end of the closing of the late spout passage),
After the bag moving holder is lowered, the spout is released, whereby the filled flexible bag 3 is placed on the table 2 as a whole. And
After the step (e), it is transported to the portion to be dropped into the outer box as described above.

[0005]

In the filling of the above flexible bag, the table is fixed and the distance from the table to the filling nozzle is constant as described above, and the range is substantially from 200 mm to 250 mm. Is set to. This distance corresponds to the filling of a flexible bag having a large capacity, and was set so that the shape of the flexible bag being filled is relatively stable. However, since the space between the filling nozzle and the table is constant, when the filling capacity changes, that is, when a flexible bag with a small storage capacity is filled in the same manner as above, a flexible bag with a small storage capacity is obtained. Fig. 4 (b) showing the filling of
(C) As shown in (D), the flexible bag is filled up in a state of being greatly lifted up, and when the flexible bag is released on the table after the completion of the filling, the shape of the flexible bag is changed. It becomes a large deformation (e), and the shape and orientation of the filled flexible bag are different from each other, which causes inconvenience. Therefore, Fig. 5 (a) (b)
As shown in (c), the flexible bag 3 in proper condition
When the tilted flexible bag 3 (FIG. 5 (b)) or the position-shifted flexible bag 3 (FIG. 5 (c)) is dropped into the outer box 10 (FIG. 5 (a)) prepared for There is a problem that automatic storage becomes difficult and the outer box and flexible bag may be damaged.

Further, the air-less fill cylinder of the air-less fill device expands and contracts to raise and lower the air-less fill pad so that it is placed under the spout or positioned at the table opening, but the stroke L is long. The expansion and contraction operation time of the airless fill cylinder becomes longer,
Therefore, there is a problem that the time of one filling cycle becomes long.

In view of the above circumstances, the present invention has an object to make the shapes of the flexible bags released on the table after filling uniform and to shorten the operating time of the airless fill cylinder. On the other hand, the purpose is to properly drop the flexible bag and to improve the filling efficiency.

[0008]

The present invention has been made in consideration of the above problems, and a table for receiving a flexible bag is arranged below the filling device, and the table is provided corresponding to the filling device of the table. Equipped with an airless filling device that raises and lowers the airless filling pad with an expandable airless filling cylinder at the opening, and the spout with the unfilled flexible bag conveyed on the table is pulled upward by the bag moving holder to fill it. After mounting the spout on the container, filling the contents with the filling device and closing the spout with the filling device, the capped spout is lowered from the filling device by the bag moving holder to be released, and the airless filter is opened. The device flexiblates the airless fill pad between the spout opening with the filler and the start of filling. Initially close the passage of the spout by applying it to the bag from below toward the spout direction, lower the airless fill pad during filling to open the passage of the spout, and from the end of filling to the spout closure by the filler, A filling method for closing a late passage of a spout by applying an airless fill pad to a flexible bag from below toward the spout, and filling the table and the airless fill device from a bag conveying height position to a position above the table. It is movably provided in the vertical direction up to the bag supporting height position, and when the bag moving holder holding the spout rises to the filler side, the table and the airless filling device are raised to the filling bag supporting height position. , The airless filling device closes the spout initial passage and opens the spout passage at the filling bag supporting height position. The latter stage of the spout is closed, and when the bag moving holder lowers the spout closed after the filling is completed, the table and the air-less filling device in which the air-less filling pad is lowered to the opening are used together to convey the bag. (EN) A method of filling a flexible bag, characterized by lowering to a position, to solve the above-mentioned problems.

[0009]

In the present invention, since the table can be raised to the filling bag supporting height position, when filling a flexible bag having a small storage capacity, the table is filled to the filling bag supporting height position. By carrying out, the flexible bag having a small storage amount can be filled without being pulled up greatly. And
At the filling bag supporting height position, the airless fill pad is raised and lowered from the opening to the lower side of the spout, and the stroke thereof is small and the operation time of the airless fill device is shortened.

[0010]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, the present invention will be explained based on an embodiment shown in FIG. In addition, the portions having the same configurations as those of the conventional example shown in FIGS. That is, in the present invention, the table 2 and the air-less filling device 5 are integrated, and the bag carrying height position 1
1 to a filling bag supporting height position 12 above the filling device 1 and below the filling device 1, and the airless filling device 5 is provided at the filling bag supporting height position 12 at the filling bag supporting height position 12. The airless fill cylinder 8 is expanded and contracted so that the airless fill pad 7 is moved up and down from the opening 6 (at the filling bag supporting height) to the lower part of the spout (spout in a state where the filling device is mounted). At this height position, the initial spout passage is closed, the spout passage is opened, and the latter spout passage is closed.

The operation of operating the table 2 which can move up and down and the air-less filling device 5 to fill a flexible bag having a small accommodation amount will be described below. Step (A) The unfilled flexible bag 3 is fed onto the table 2 at the bag conveying height position 11 by the bag moving holder 9 holding the closed spout 4, and the spout 4 is fed to the filling device 1. It is arranged so as to correspond to the lower side. Step (B) Next, when the bag moving holder 9 rises and the spout 4 moves toward the filling device 1, both the table 2 and the airless filling device 5 move up to the filling bag supporting height position 12 accordingly. To rise. When the bag moving holder 9 is raised and the spout 3 is mounted on the filling device 1, the filling bag supporting height position is set before the spout opening on the filling device 1 side is started in the same manner as in the conventional case. An airless fill device 5 at 12 provides initial spout passage closure. That is, the airless fill cylinder 8 extends and the airless fill pad 7 located in the opening 6 is applied from below the flexible bag 3 toward the spout side to close the inner passage of the spout 4.

Step (C) The spout 4 is attached to the filling device 1, and the spout 4 and the filling nozzle 1a are placed in the filling chamber.
After the connection is established, the airless fill pad 7 descends to complete the initial spout passage closure. The airless fill pad 7 may be one in which the spout passage is opened so that the filling is properly fed into the flexible bag 3 through the spout 4, and the airless fill pad 7 has a small descent amount and is connected to the spout. It is provided so as to descend to a pad standby height position 13 near the bottom (of course, it is set between the bottom of the connected spout and the filling bag support height position 12). The descent of the airless fill pad 7 starts the operation of opening the spout passage of the air refill device 5. In this way, since the airless fill pad 7 once descends to the pad standby height position, the operating time of the airless fill cylinder 8 becomes shorter. Even when the airless fill pad 7 is lowered to the filling bag supporting height position 12 (opening portion), the amount of fall is smaller than in the conventional process.
Filling is performed after the airless filling device 5 starts the operation of opening the spout passage.

After the completion of the filling in the step (D), the airless fill pad 7 is lifted again from the pad standby height position 13 to end the spout passage opening, and the latter spout passage is closed.
In the operation of closing the spout passage in the latter period, the airless fill pad 7 is applied from below the flexible bag 3 toward the spout 4 side to close the passage from the spout 4 to the inside of the flexible bag 3. Then, after the closing of the late spout passage is started, the spout 4 is separated from the filling nozzle 1a in the filling chamber, and the plug is fitted (capping). After the step (E) is closed, the airless fill pad 7 has the opening 6
To descend (end of late spout passage closure). And
The bag moving holder 9 is lowered to remove the spout from the filling device 1, and the table 2 and the air-less filling device 5 are lowered to the bag conveying height position 11 as the bag moving holder 9 is lowered. After the bag moving holder 9 descends by a predetermined amount, the spout 4 is released,
As a result, the filled flexible bag 3 is placed on the table 2 as a whole. After the step (E), it is conveyed to the portion to be dropped into the outer box in the same manner as the conventional one.

[0014]

According to the present invention having the above-described structure, the table and the air-less filling device can be moved up to the filling bag supporting height position as the bag moving holder is moved up. By placing a small amount of the flexible bag on the table and raising it to the filling bag supporting height at a high position, the flexible bag can be filled without significantly pulling it up. Since the flexible bag will return to the high filling bag support height position even after filling, the position of the filled flexible bag does not shift and the shape of the bag does not change significantly. The flexible bag has a stable shape, and can be dropped into the outer box in an appropriate state. In addition, since the air-less fill pad is moved up and down at the filling bag supporting height position which is close to the filling device, the stroke is shortened and the operation time of the air-less filling device is shortened. The time is shortened, and the effect is excellent in practicality.

[Brief description of drawings]

1A and 1B show an embodiment of a method for filling a flexible bag according to the present invention, in which FIG. 1A is an explanatory view showing a state in which a flexible bag is loaded, and FIG. 1B is a state in which a spout is attached to a filling device. Is an explanatory diagram showing a state during filling, (D) is an explanatory diagram showing a state after completion of filling, and (E) is an explanatory diagram showing a state where the flexible bag is returned to the table. is there.

FIG. 2 is an explanatory view showing a table and an air-less filling device in a conventional filling method.

3A and 3B show a conventional method for filling a flexible bag, where FIG. 3A is an explanatory view showing a state in which the flexible bag is loaded, and FIG. 3B is an explanatory view showing a state in which the spout is attached to the filling device. C) is an explanatory diagram showing the state during filling,
(D) is an explanatory view showing a state after completion of filling, and (E) is an explanatory view showing a state in which the flexible bag is returned to the table.

FIG. 4 is a view showing a conventional method for filling a flexible bag having a small storage capacity, (a) is an explanatory view showing a state in which the flexible bag is loaded, and (b) is a state in which the spout is attached to the filling device. Explanatory drawing shown, (C) is an explanatory view showing a state during filling, (D) is an explanatory view showing a state after completion of filling, and (E) is an explanatory view showing a state in which the flexible bag is returned to the table. .

5A and 5B are views showing dropping of a filled flexible bag, in which FIG. 5A is an explanatory view showing the flexible bag in a proper state with respect to the outer box, and FIG. 5B is a flexible state in which the flexible bag is inclined with respect to the outer box. FIG. 3 is an explanatory view showing the bag, and FIG. 3C is an explanatory view showing the flexible bag in a state of being displaced from the outer box.

[Explanation of symbols]

 1 ... Filler 2 ... Table 3 ... Flexible bag 5 ... Airless filling device 6 ... Opening portion 7 ... Airless fill pad 9 ... Bag moving holder 11 ... Bag conveying height position 12 ... Filling bag supporting height position 13 ... Pad standby Height position

Claims (1)

[Claims] 1. A table for receiving a flexible bag is disposed below a filling device, and an airless fill pad is raised and lowered by an expandable airless fill cylinder in an opening portion of the table provided corresponding to the filling device. The device is equipped with a spout with an unfilled flexible bag that is transported on the table and is pulled up by a bag moving holder to be mounted on a filling machine, and the spout is opened by the filling machine and the contents are filled and the spout is filled. After the cap is closed, the capped spout is lowered and released from the filling device by the bag moving holder, and the airless filling device is used to open the airless filling device from the spout opening by the filling device to the start of filling. Apply the pad to the flexible bag from below and in the direction of the spout. The initial passage is closed, the airless fill pad is lowered during filling to open the passage of the spout, and the airless fill pad is applied to the flexible bag from below toward the spout from the end of filling until the spout is closed by the filler. A method for closing the passage of the spout at a later stage, wherein the table and the airless filling device are provided so as to be movable in the vertical direction from a bag conveying height position to a filling bag supporting height position above the bag conveying height position. When the bag moving holder holding the spout rises to the filler side, the table and the airless filling device are raised to a filling bag supporting height position, and at the filling bag supporting height position, the airless filling device causes the spout to move. A spa that was closed after initial filling, spout passage opening, and spout late passage closing. When the holder for moving the bag is lowered downward, the table and the air-less filling device having the air-less filling pad at the opening are lowered to the bag-conveying height position. Method.