JPH0457701A - Bag insertion device - Google Patents

Abstract

PURPOSE:To ensure a favorable fitting condition by making a bag join to a box by a method wherein at a lower part of an elevatable insertion element which is inserted in a bag arranged above the upper opening of a box and fits the bag in the box by lowering the bag, an air outlet is provided. CONSTITUTION:An insertion element 3 descends, and by folding claws 10 on both sides of the insertion element 3, the upper end of a bag 2 is folded over and pinched on the external surface of the box 1. After the bag 2 is thoroughly inserted up to the corners in the box 1, a solenoid valve 9 is opened, and from an outlet, compressed air is discharged toward the bottom surface of the bag 2, and after the insertion condition of the bag 2 has been fixed, the insertion element 3 is raised. After that, the box 1 in which the bag 2 is fitted is carried to the following process, and a desired powdery body, granular body or loose item, etc., is filled to complete packaging.

Description

[Detailed description of the invention]

INDUSTRIAL APPLICATION FIELD 1 The present invention relates to an insertion device for inserting a bag made of resin film into a box such as a cardboard box. BACKGROUND OF THE INVENTION Conventionally, powders, granules, parallaxes, etc. are packaged by inserting a resin film bag 2 into a box 1 such as a cardboard box, and enclosing the bag into the bag. To insert the bag 2 into the box 1, as shown in FIG. I'm trying to get him to wear it.

[Problem to be solved by the invention]

However, when the inserter 3' is raised, the bag 2 is lifted due to the frictional resistance between the bag 2 and the side surface of the box 1 and the vacuum phenomenon, making it difficult to insert the inserter 3' properly, resulting in low reliability. (See FIG. 3(c)) If the bag 2 is not properly inserted, troubles will occur in subsequent processes, making unattended operation impossible. The present invention has been made in view of the above circumstances, and its object is to provide a bag insertion device that can bring the bag into close contact with the box body and ensure a good insertion state.

[Means to solve the problem]

The bag insertion device of the present invention is a device for inserting a bag 2 into a box 1, and inserts the bag 2 into the bag 2 disposed above an upper opening in the box 1 to insert the bag 2 into the box 1. An air outlet 4 is provided in the lower part of an inserter 3 which can be raised and lowered to be inserted into a box 1 by lowering the inserter 2, and this structure solves the above problem. [Effect 1: Since the air outlet 4 is provided at the bottom of the insert 3,
By inserting the insert body 3 into the bag body 2, lowering the bag body 2 and positioning it in the box body 1, and discharging air from the discharge port 4 when the insert body 3 is raised, the bag body 2 is It can be pressed against the inner surface of the box 1 by air and inserted into the box 1 in close contact. [Example] As shown in FIG. 1, a film tube original 5 is rewound and conveyed by a roller 6 (FIG. 1(a)), and is held between a pair of suction pads 7 and cut into a predetermined size by a cutter 8. The bag body 2 is prepared by cutting (FIG. 2(b)). Next, the pair of suction pads 7 are separated to spread out the bag 2, and then the insert 3, which is installed to be able to be raised and lowered by a hydraulic cylinder or the like, is lowered and inserted into the bag 2, and in this state, the insert 3 is further lowered, the bag body 2 is removed from the suction pad 7, and is inserted into the box body 1 through the upper opening of the box body 1, which is a cardboard box placed below ((c) and (d) in the same figure). )
Then, the insert 3 is lifted up and the bag 2 is inserted into the box 1 (see (e) in the same figure).The insert 3 has a hollow shape that is slightly smaller than the box 1, and there is a A plurality of air discharge ports 4 are provided. This discharge port 4 has a diameter of 1 to 3-1 and a pitch of 20 to 50+a.This discharge port 4 is opened and closed by a solenoid valve 9, and the compression pressure is 4 to 6
kg/m2 of compressed air is discharged. As shown in detail in FIG. 2, the insert 3 is lowered and the upper end of the bag 2 is bent by the folding claws 10 on both sides of the insert 3, and the box body 1 is folded.
After the bag 2 is firmly inserted into the corner of the box 1, the solenoid valve 9 is opened and compressed air is discharged from the outlet 4 toward the bottom of the bag 2. After the insertion state of the inserter 2 is adjusted, the inserter 3 is raised (the second
Figure (b)). Thereafter, the box 1 with the bag 2 inserted therein is transported to a subsequent process, filled with desired powder, granules, bulk materials, etc., and packaged.

【Effect of the invention】

In the present invention, since the air outlet is provided at the lower part of the insert, when the insert is inserted into the bag, the bag is lowered to be located inside the box, and the insert is raised. By discharging air from the outlet, the bag is pressed against the inner surface of the box by the air, and the bag can be inserted into the box with the bag in close contact with the corners, resulting in a good bag. The inserted state is ensured, there is no occurrence of toppling in the subsequent process, and continuous unmanned operation is also possible.

[Brief explanation of the drawing]

Figures 1 (i) (bHe) and (dHe) are schematic diagrams showing the insertion of a bag body according to an embodiment of the present invention, and Figures 2 (a) and (b) are schematic diagrams showing the action of the insert body in the same embodiment. , Figure 3(a)
(b) and (e) are schematic diagrams showing the function of an insert in a conventional example, in which 1 is a box, 2 is a bag, 3 is an insert, and 4 is a discharge port. 1IA (d) (e) Agent Patent Attorney Stone 1) Chief Seven

Claims (1)

[Claims] (1) A device for inserting a bag into a box, which is an insertion device that can be raised and lowered by inserting it into the bag placed above the upper opening of the box, lowering the bag, and inserting it into the box. A bag insertion device characterized by having an air outlet provided at the bottom of the body.