JPH0613331B2 - Bag insertion device - Google Patents

Description

TECHNICAL FIELD The present invention relates to a bag inserting device for inserting an interior bag into a container.

[Prior Art] For example, if something that directly comes into contact with food items such as a crown is dustproof,
It is wrapped in an interior bag for the purpose of preventing moisture, and then placed in a transport container for transport.

Conventionally, in the field of this type, it has been usual to manually insert the inner bag into the transport container on the transport conveyor line of the transport container in advance and then automatically pack the objects to be transported such as the crown.

[Problems to be Solved by the Invention] However, since the bag insertion work is manually performed, there are problems in that the capacity is limited and it is difficult to always insert the bag into the transport container in a properly opened state. Had.

The present invention has been conceived in view of the above circumstances, and an object thereof is to provide a bag insertion device that correctly and automatically inserts an interior bag into a transport container.

[Means for Solving the Problems] In order to achieve the above object, according to the present invention, one side surface of a bag having a bottom surface that is stacked in a folded state is held one by one, and the bag is conveyed above an inserted container. By holding the means and the anti-holding side surface of the conveyed bag, and pulling to the anti-holding side surface side,
A means for opening the held bag, and three-dimensionally molding the bag by entering the opened bag and sucking and holding by suction from a vacuum source, and accommodating the bag in the inserted container. And an insertion member that enters.

[Embodiment of the Invention] An embodiment of the bag inserting device according to the present invention will be described below with reference to Figs. 1 to 5. FIG. 1 is a perspective view of the bag inserting device 2 according to the present invention with the box conveyor removed, and FIG. 2 shows the front surface of the bag supplying unit 3 of the bag inserting device 2.

In FIG. 2, reference numeral 4 is a table on which the stacked bags 6 are placed.
When the table is inserted, it is lifted by the operation of the table cylinder 8.

A bag suction unit 10 is arranged above the table 4, and the bag suction unit 10 sucks one side surface 6a of the bag 6 so that it can be conveyed in an arc to the upper part of the box 12 to be inserted. Has become. The bag suction unit 10 has, for example, eight vacuum cups 14 connected to a vacuum source (not shown), and these vacuum cups 14 are attached to the bag suction unit 10, which is rotated around a shaft 18 via a bracket 17 by an operation of a rotary cylinder 16. It is composed of a rotary mounting plate 20 that rotates.

On the other hand, in a vertical state, the side surface 6b on the side opposite to the holding side of the bag 6 held by the bag suction portion 10 is sucked at a position opposite to the rotary mounting plate 20 and horizontally moved rightward in FIG. As a result, a bag opening 22 for opening the bag 6 is arranged. The bag opening 22 is, for example, four vacuum cups connected to a vacuum source (not shown) (the number of the vacuum cups 24 in the bag opening is set so as to avoid adsorption to the bottom surface 6C of the bag 6, It comprises 24 for holding the side surface 6b, which is smaller than the number of bag supply parts 3, and a slide mounting plate 28 to which these vacuum cups 24 are attached and which is horizontally moved by the operation of the slide cylinder 26 (FIG. 3).

Then, above the bag 6 opened by the bag opening 22, an insertion portion 30 for adsorbing the inner surface of the bag 6 and inserting it into the box 12 is provided.

The insertion portion 30 includes a box 32 which is an insertion member having a large number of holes 32a for sucking or discharging air in the two side surfaces 6a, 6b and the bottom surface 6c of the bag 6, and an upper portion for moving the box 32 up and down. It is composed of a cylinder 34, a lower cylinder 36, a stem 38 for connecting the box 32 to the upper cylinder 34, the lower cylinder 36 and for communicating with an air source.

A conveyor 40 (FIG. 5) for transporting the boxes 12 one by one and a stopper (not shown) for stopping the boxes 12 at a predetermined position are arranged below the insertion portion 30. It is set up.

Next, the operation of the bag inserting device according to the present invention configured as described above will be described.

The box 12 is conveyed by the conveyor 40 and stopped by a stopper (not shown) (state shown in FIG. 5). afterwards,
Pressurized air is supplied to the lower side of the table cylinder 8, the table 4 on which a large number of bags 6 are stacked rises, and the uppermost bag 6A
Is pressed against the lower surface 14a of the vacuum cup 14 of the bag suction portion 10 (state shown by the solid line in FIG. 2). At this time, since the vacuum cup 14 is connected to a vacuum source (not shown), the uppermost bag 6A is adsorbed by the vacuum cup 14. Therefore, by switching the supply of the pressurized air to the table cylinder 8 from the lower side to the upper side, the table 4
Descends and stops at the position indicated by the dashed line in FIG.

Next, a pressurized air source (not shown) is communicated with the shaft 15 side of the rotary cylinder 16, and the cylinder shaft 19 is extended while the rotary cylinder 16 rotates about the shaft 15. The end 19a (FIG. 3) of the cylinder shaft 19 on the side opposite to the rotation cylinder is rotatably held at the center of the rear surface of the rotary mounting plate 20, so that the rotary mounting plate 20 is centered on the shaft 18. It is rotated about 90 ° counterclockwise and stopped at the vertical position (solid line in Fig. 3).

Further, in FIG. 3, a pressurized air source is communicated with the right side of the slide cylinder 26 of the bag opening 22 stopped at the position indicated by the chain double-dashed line, and the slide mounting plate is moved in the left (arrow) direction in FIG. 28 moves horizontally and stops at the position indicated by the solid line in the figure.

Therefore, the vacuum cup 24 attached to the slide mounting plate 28 is communicated with a vacuum source (not shown), so that the vacuum cup 24 is attracted to the side surface 6b of the bag 6 opposite to the holding surface. Next, the pressurized air source of the slide cylinder 26 is switched from the right side to the left side, and the vacuum cup 24 attached to the slide attachment plate 28 is horizontally oriented along with the slide cylinder 26 in the right direction in FIG. 3 (opposite the arrow). Can be moved. That is, the bag 6 leaves the holding side surface 6a and does not hold the holding side surface 6b.
3 is pulled to the right in FIG. 3, so that it opens.

At this time, the insertion portion 30 is in the state of the chain double-dashed line in FIG. 4 (however, only the stem 18 is shown).

Next, when a pressurized air source (not shown) is communicated with the upper side of the upper cylinder 34, the stem 38 and the box 32 fixed to the upper cylinder 34 start descending. At this time, since the upper end of the stem 38 is connected to a pressurized air source (not shown), the box 32
Air is discharged through holes 32a formed on the side surface and the bottom surface. Therefore, the box 32 blows air from the inside to the opened bag, that is, while completely opening the bag,
It is inserted into the bag 6 and stopped (state shown by the solid line in FIG. 4).

Therefore, the communication of the upper end of the stem 38 is switched from the pressurized air source to the vacuum source. The bottom surface 6c, the holding side surface 6a, and the non-holding side surface 6b of the bag 6 are attracted to the box 32.

Therefore, the vacuum sources of the vacuum cup 14 of the bag suction unit 10 and the vacuum cup 24 of the bag opening 22 are shut off. Then, the force for opening the bag 6 is removed, and the bag 6 is adsorbed only by the box 32.

Next, a pressurized air source (not shown) is connected to the upper side of the lower cylinder 36. Then, the upper cylinder 34, the stem 38, and the box 32, which are fixed to the lower cylinder 36, start further descending, and the box 32 together with the adsorbed bag is inside the box 12 stopped vertically below the box. To the state shown in FIG.

Here, the vacuum source passed through the upper end of the stem 38 is switched to the pressurized air source. Then, the bag 6 is attached to the inside of the box 12. Therefore, the bag 6 will not rise together with the box 32 due to the rise of the box 32 in the next step.

Next, when the communication of the pressurized air source is switched to the lower side of the upper cylinder 34 and the lower cylinder 36, the box 3
2, the stem 38, the upper cylinder 34, and the lower cylinder 36 ascend and return to the state of FIG.

Therefore, the box 12 that has delivered the bag 6 is transported to the crown delivery machine on the conveyor 40 by releasing a stopper (not shown). Further, the bag suction unit 10 which has handed over the bag 6 to the box 32 of the insertion unit 30 switches the air source of the rotary cylinder 16 from the upper side to the lower side, so that the rotary mounting plate 20 is rotated to the shaft 18.
Rotate about 90 ° clockwise with the core as the core, return to the state of the dashed line in Fig. 3, and prepare for the next bag.

[Effects of the Invention] As is apparent from the description of the embodiments above, according to the present invention, since a ready-made bag can be inserted into a container to be inserted after being assembled in a three-dimensional shape, it is a bag having a bottom surface. Even if there is, it can be assembled correctly. Further, the wall of the bag does not hit the container to be inserted during the assembly of the bag, so that it is not damaged.

Further, since the bag is suction-held and inserted into the container to be inserted, the bag assembled into a three-dimensional shape can be inserted into the container to be inserted while preventing the bag from falling down without being in a tension state. Therefore, the bag is not damaged or deformed, and even if the bag is somewhat large, it can be smoothly inserted into the inserted container.

[Brief description of drawings]

FIG. 1 is a perspective view of the bag inserting apparatus according to the present invention without a box conveyor, FIG. 2 is a front view of a bag feeding section, and FIG. 3 is a bag adsorbing section and a bag opening section immediately before opening of the bag. FIG. 4 is a front view showing the state immediately before the bag is sucked by the insertion portion, and FIG. 5 is a view showing the state in which the bag is inserted into the box. 2 ... Bag insertion device, 3 ... Bag supply unit, 6 ... Bag, 10 ...
Bag suction part, 14, 24 ... vacuum cup, 22 ... bag opening, 30 ... insertion part, 32 ... box.

Claims (2)

[Claims] 1. A means for holding one side surface of a bag having a bottom surface which is stacked in a folded state one by one, and a means for conveying the bag to the upper side of the container to be inserted, and a non-holding side surface of the conveyed bag, A means for opening the held bag by pulling it toward the side opposite to the holding side, and three-dimensionally molding the bag by entering the opened bag and sucking and holding the bag by suction from a vacuum source. And an insertion member which is inserted into the container to be inserted together. 2. A means for holding one side surface of each of the stacked bags in the folded state one by one, and a means for conveying the bag to the upper side of the inserted container and a non-holding side surface of the held bag, and the anti-holding means. The bag inserting device according to claim 1, wherein a means for opening the held bag by pulling it to the side uses a vacuum source.