JPS6382902A - Bag inserter - Google Patents

Abstract

(57) [Abstract] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a bag insertion device for inserting an inner bag into a container.

[Prior art] For example, items that come into direct contact with foodstuffs, such as crowns, must be dustproof,
After wrapping it in an interior bag for moisture-proofing purposes, it is then placed in a transport container and transported.

Conventionally, in this type of field, it has been common practice to manually insert an inner bag into the transport container on the transport conveyor line of the transport container, and then automatically pack objects such as crowns into the transport container.

[Problems to be Solved by the Invention] However, since the bag insertion work is done manually, the bag capacity is limited, and it is difficult to always insert the bag into the transport container with the opening properly. had.

The present invention was devised in view of the above circumstances, and its purpose is to provide a bag insertion device that automatically and correctly inserts an inner bag into a transportation container.

[Means for Solving the Problems] In order to achieve the above object, the present invention provides means for holding one side of stacked bags in a folded state one by one and transporting them above the container to be inserted; means for opening the held bag by holding the side opposite to the holding side of the transported bag and pulling it toward the side opposite to the holding side; holding the opened bag;
and means for inserting into the container to be inserted.

[Embodiment 1 of the Invention] Hereinafter, an embodiment of the bag insertion device according to the present invention will be described with reference to FIGS. 1 to 5. FIG. 1 is a perspective view of a bag insertion device 2 according to the present invention with the box conveyor removed, and FIG. 2 shows the front of the bag supply section 3 of this bag insertion device 2.

In FIG. 2, reference numeral 4 is a table on which the stacked bags 6 are placed, and this table 4 is used to place the bags 6 in the box 12.
When the table cylinder 8 is inserted, it is raised by the operation of the table cylinder 8.

A bag suction unit 10 is disposed above the table 4, and the bag suction unit 10 suctions one side 6a of the bag 6, and the bag 6 is conveyed in an arc to the top of the box 12 to be inserted. It looks like this. This bag suction unit 10 is equipped with, for example, 81 vacuum cups 14 connected to a vacuum source (not shown), and these vacuum cups 14 are attached and rotated around a shaft 18 via a bracket 17 by the operation of a rotating cylinder 16. It is composed of a rotating mounting plate 20.

On the other hand, in the opposite position of the rotary mounting plate 20 which is in the vertical state, it is attracted to the side surface 6b on the opposite side of the bag 6 held by the bag suction part 10, and is horizontally moved rightward in FIG. bag opening 2 for opening the bag 6 by
2 is placed. This bag opening 22 is connected to, for example, four vacuum cups (not shown) connected to a vacuum source (not shown).
The number of vacuum cups 24 at the bag opening is
24 (less than the number of bag supply units 3) and a slide mounting plate which is horizontally moved by the operation of the slide cylinder 26 to which the vacuum cups 24 are attached. It consists of 28 (Fig. 3).

An insertion section 30 is provided above the bag 6 opened by the bag opening 22 to suck the inner surface of the bag 6 and insert it into the box 12.

This insertion part 30 includes a box 32 with a large number of holes 32a for inhaling or discharging air into two sides 6a, 6b and a bottom surface 6C of the bag 6, and an upper cylinder 34 for moving this box 32 up and down. ．． a lower cylinder 36;
The box 32 and the upper cylinder 34. A stem 38 connects the lower cylinder 36 and communicates with an air source.
It is composed of

Furthermore, a conveyor 40 (FIG. 5) for conveying the boxes 12 one by one and a stopper (not shown) for stopping the boxes 12 in a fixed position are arranged below the insertion section 30. It is set up.

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

The box 12 is conveyed by a conveyor 40 and stopped by a stopper (not shown) (the state shown in FIG. 5). After that, 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 topmost bag 6A is placed on the bottom surface 14 of the vacuum cup 14 of the bag suction unit 10.
a (the state shown by the solid line in Figure 2). At this time,
Since the vacuum cup 14 is connected to a vacuum source (not shown), the bag 6A on the uppermost surface is attracted by the vacuum cup 14. Therefore, table cylinder 8
By switching the supply of pressurized air from the lower side to the upper side, the table 4 is lowered and stopped at the position indicated by the two-dot chain 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 opposite side of the rotating cylinder is rotatably held at the center of the back surface of the rotating mounting plate 20.
is rotated approximately 90° counterclockwise about axis 18 and stopped at a vertical position (solid line in FIG. 3).

Roughly speaking, in Fig. 3, a pressurized air source is communicated with the right side of the slide cylinder 26 of the bag opening 22 which is stopped at the position indicated by the two-dot chain line, and the slide is mounted in the direction to the left (arrow) in the figure. The plate 28 moves horizontally and stops at the position indicated by the solid line in the figure.

Therefore, since the vacuum cup 24 attached to the slide mounting plate 28 is connected to a vacuum source (not shown), the vacuum cup 24 is connected to the side surface 6 of the bag 6 opposite to the holding surface.
adsorbs to b. 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 mounting plate 28 is moved horizontally to the right (opposite to the arrow) in FIG. 3 together with the slide cylinder 26. be moved. That is, the bag 6 has a holding side surface 6a.
3, and the opposite side surface 6b is pulled toward the right in FIG. 3, so that it opens.

At this time, the insertion portion 30 is in the state shown by the two-dot chain 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 box 32 fixed to the upper cylinder 34 begin to descend. At this time, since the upper end of the stem 38 is connected to a pressurized air source (not shown), air is discharged from the holes 32a formed in the two side surfaces and the bottom of the box 32. For this reason, the box 32 is inserted into the bag 6 while blowing air into the opened bag from the inside, that is, while the box 32 is completely opened, and then stopped (the state shown by the solid line in FIG. 4).

Therefore, the communication at the upper end of the stem 38 is switched from the pressurized air source to the vacuum source. Therefore, the bottom surface 6C of the bag 6 and two side surfaces, the holding side surface 6a and the opposite holding side surface 6b, are attracted to the box 32.

Therefore, the vacuum sources of the vacuum cup 14 of the bag suction section 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 attracted 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. which is fixed to the lower cylinder 36. Stem 38. The box 32 begins to descend roughly, and the box 32, together with the suctioned bag 6, is inserted into the box 12 which is stopped vertically below the box, resulting in the state shown in FIG.

At this point, the vacuum source connected to the upper end of the stem 38 is switched to a pressurized air source. The bag 6 is then attached to the inside of the box 12. Therefore, when the box 32 is raised in the next step, the bag 6 will not be raised together with the box 32.

Next, the upper cylinder 34 and the lower cylinder 3
6, switch the communication of the pressurized air source to the bottom of box 32. Stem 38. The upper cylinder 34.degree. and the lower cylinder 36 rise to return to the state shown in FIG.

Then, the box 12 containing the bags 6 is conveyed on the conveyor 40 to the crown delivery section by releasing a stopper (not shown). Also, insert the bag 6 into the box 3 of the insertion section 30.
By switching the air source of the rotary cylinder 16 from the upper side to the lower side, the bag suction unit 10 handed over to 2 rotates the rotary mounting plate 20 about 90 degrees clockwise about the shaft 18,
It returns to the state shown by the two-dot chain line in Figure 3 and prepares for the next bag.

[Effects of the Invention] As is clear from the description of the embodiments, according to the present invention, the bags can be sucked, opened, and inserted one by one without any manual effort, which reduces the population. Not only this, but the insertion speed has increased, and there are no errors in bag insertion, making the entire operation stable and economical.

[Brief explanation of the drawing]

Fig. 1 is a perspective view of the bag insertion device according to the present invention excluding the box conveyor, Fig. 2 is a front view of the bag supply section, and Fig. 3 shows the state immediately before the frontage of the bag at the bag opening of the two bag suction sections. Front view showing,
FIG. 4 is a front view showing the state immediately before the bag is sucked by the insertion section, and FIG. 5 is a view showing the state when the bag is inserted into the box.

Claims (2)

[Claims] (1) A means for holding one side of stacked bags in a folded state one by one and transporting them above the container to be inserted; A bag insertion device comprising: means for opening the held bag by pulling; and means for holding the opened bag and inserting it into the inserted container. (2) One side of the stacked bags in the folded state
means for holding the bag one by one and conveying it above the container to be inserted; means for holding the side of the held bag opposite to the holding; and opening the held bag by pulling it toward the side opposite to the holding; A bag insertion device characterized in that the means for holding the opened bag and inserting it into the container uses a vacuum source.