JPS59174423A - Separator for packing bags - Google Patents

Abstract

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

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention provides a separation end for packaging bags at the tip of a packaging bag passage in a stocker, and a separation arm equipped with a suction device faces the separation end. The purpose of this is to improve the drawback that the first packaging bag adheres to the first packaging bag and the two bags are separated at the same time.Specifically, a suction cup is placed facing the separation end. A separating device that supports a swinging arm and blows pressurized air between the first and second packaging bags whose rims are pulled out by the suction cup of the swinging arm. A pressurized air nozzle is installed to suction the edge of the first packaging bag prior to or simultaneously with the suction of the packaging bag by the separation arm, and to remove the edge of the first packaging bag and the second packaging bag. Bags are forcibly separated by the pressure of blown air.

The present invention will be described in detail.

In the figure, reference numeral 1 indicates a stocker for packaging bags, and a conveyor belt 3 that hangs the bottom of the passage 2 for packaging bags a on a vlAl day rack 4.
A separation end 6 is provided at the tip with a stopper frame 5 surrounding it. Reference numeral 7 denotes a guide plate attached to the inner upper surface of the M end 6 to guide the packaging bag a to the separation end. Separation @ 6 is equipped with an arm 8 for attaching a suction cup 9 (suction device W) that reciprocates between the suction position shown by the solid line and the supply position shown by the chain line, and the separation end 6
The suction cup 12 attached to the tip is rotated reversibly by approximately 90° by the outer shaft 11 of the
11 [Install the swinging arm 10 that moves between the position where it attracts the upper edge of the packaging bag a at the end 6 and the position indicated by the chain line.

This swinging arm 10 can also be pivoted outside the circle of separation @6. The suction cup 12 has a weak suction force and is designed to slide around the shaft 11 and slide the suction position while suctioning the packaging bag a.

A limit switch 13 faces the separation end 6 and stops the conveyor belt 3 at the same time as it senses the abutment of the leading end of the packaging bag a.

At the separation end 6, pressurized air is applied between the first packaging bag a and the second packaging bag a2, which are sucked forward by the suction cup 12 as shown in FIG. A pressurized air nozzle 14 for blowing separation is provided. The illustrated pressurized air nozzle 14 may be provided on both sides and below the separation end 6 even when the swing arm 10 is provided outside the separation end 6.

In this embodiment, the separating end 6 passes through the passage 2 of the stocker 1.
The separation arm 8 approaches the first packaging bag a1 on the rear surface of the stopper frame 5 as shown by the solid line and starts suctioning it, and at the same time, the suction cup 12 of the swinging arm 10 at the solid line position The edge of the packaging bag a1 is sucked, and at the same time, the shaft 1
1 as the center, and the suction cup 12 moves in conjunction with the suction cup 12 while sliding the suction position. Therefore, a gap 15 shown in FIG. 4 is created between the first packaging bag a1 and the second packaging bag a2, and pressurized air is released from the pressurized air nozzle 14 as the swinging arm 10 swings. Blow into the blowout gap 15. The separation arm 8 stops briefly after suctioning the packaging bag a1 with the suction cup 9, or starts moving in the direction of the chain line position at the same time as suction, but the blown pressurized air acts for separation and wraps the packaging bag a2. It is forcibly separated from the bag a1 and stopped at the separation end 6. Therefore, only the first packaging bag a is separated by the separation arm 8 and conveyed to the supply position shown by the chain line, and the two-opening packaging bag a2 is not separated while remaining attached.

The suction timing of the packaging bag a1 by the suction cup 9 of the separation arm 8, the suction timing of the edge of the packaging bag a1 by the suction cup 12 of the swinging arm 10, the swinging timing, or continuous pressurization from the pressurizing air nozzle 14. Whether to emit air or intermittently,
How to do swimming intermittently?
I! How to decide when to start separating by the i-arm 8, etc.
In addition to the above explanation, there are various things that can be determined, and the key is to apply pressurized air to the first and second packaging bags when they leave the separation end. This is because it blows in between for separation and completes the separation of one sheet.
The separation arm, the swing shaft, the suction start and end times of the respective suction devices and suction cups, etc. may be adjusted to the most convenient time to determine the separation to be performed with precision.

As is clear from the above description, the present invention includes, in addition to the separating arm provided in a normal packaging bag separating device, a swinging arm provided on the side of the separating end to pull out the leading packaging bag by a suction cup. By providing a pressurized air nozzle that blows pressurized air for separation between the first and second packaging bags, it is possible to extremely accurately prevent two bags from being separated at the same time. It is something that can demonstrate.

[Brief explanation of the drawing]

The accompanying drawings show an embodiment of the present invention, and FIG. 1 is a plan view;
Figure 2 is a side view cut along the line A-A in Figure 1, Figure 3 is a front view,
FIG. 4 is a plan view illustrating the operation. a→Packaging bag 1→Stocker 2→Aisle 6→Separation end 8
→ Separation arm 9 → Suction cup 10 → Rocking arm 12 → Suction cup 14 → Pressurized air nozzle 6- Fig. 3

Claims (1)

[Claims] A separating device for packaging bags, in which a separating end is provided at the tip of a packaging bag passage of a stocker, and a separating arm equipped with a suction device faces the separating end, and a suction cup is provided facing the separating end.
W, a separating device that supports a movable arm and blows pressurized air between the first and second packaging bags whose rims are pulled out by the suction cup of the swinging arm; A packaging bag separation device characterized by being equipped with a pressurized air nozzle.