JPS6217230Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Field of Industrial Application) The present invention relates to a device for hanging bags on cardboard cases and the like.

(Prior art) In general, a bag made of plastic sheet is placed in a cardboard case, wooden box, etc. with a rectangular opening (hereinafter simply referred to as a cardboard case, etc.), the bag is hung, and then the article is inserted into the bag and wrapped. are doing. Conventionally, bag hanging has been carried out manually by workers, which has led to the problem of poor work efficiency. Further, as a device for hanging an inner bag having a circular opening onto a circular outer container, there is a device described in Japanese Utility Model Application Publication No. 128823/1983. This device is supported by link mechanisms 24, 25, and 26 when inserting a housing 7 made of wire rod 15 into an inner bag 9B and storing the inner bag 9B together with the housing 7 in an outer container 9A. The opening of the inner bag 9B is expanded by the expansion rod 27, and the expansion rod 27 is moved downward to bend the upper part of the inner bag 9B. In this device, when the expansion rod 27 moves downward, the expansion rod 27
7 is pressed against the inner bag 9B, the inner bag 9B inside the outer container 9A is pulled and pulled out. As a result, the outer container 9A
(Especially when the outer container 9A is new) The inner bag 9B is pressed against the opening edge and the inner bag 9B is damaged or torn. Furthermore, since the expansion rod 27 and the inner bag 9B move relative to each other, the lower end of the expansion rod 27 and the inner surface of the inner bag 9B rub against each other, and the inner bag 9B
There was a problem in that not only the inner bag 9B would be damaged, but also the inner bag 9B would be torn if it was made of a thin film.

(Means for Solving the Problems) The present invention was devised in view of the above-mentioned drawbacks.The present invention has been developed in view of the above-mentioned drawbacks. a pair of chucks each attached to the vacuum members so as to engage with the front faces of the pair of vacuum members to sandwich the upper part of the bag between the front faces of the pair of vacuum members; A core bar is inserted into an opened bag and inserted into a rectangular cardboard case or the like together with the bag, and the top of the bag is held between the front side of the vacuum member and the front side by a chuck,
The bag is inserted into a cardboard case, etc. with the vacuum member and the chuck separated outwardly so that the top of the bag is located outside the width of one side of the opening of the cardboard case, etc., and the core metal inserted into the bag. After that, the vacuum member and the chuck are moved downward.

(Function) The chuck that grips the top of the bag can be moved downward to the outside of the side of the cardboard case, etc., so there is no relative movement between the chuck and the bag, and the bag can be pulled or stretched. No rubbing.

(Example) An example of the present invention will be described below with reference to the drawings.

In FIGS. 1 and 2, 1 and 1' are a pair of vacuum members, and these vacuum members 1 and 1' can be moved toward and away from each other by appropriate means and can also be moved in the vertical direction. . The vacuum members 1, 1' are box-shaped and have a large number of suction holes 2, 2' on their mutually opposing front faces, and have pipe attachment parts 3, 3' on their rear faces. Two brackets 4a and 4b are provided on the upper surface of the vacuum member 1 at a predetermined distance from each other.
are attached, and these brackets 4a, 4b rotatably support the rotating shaft 5. A pair of chucks 6, which will be described later, are spaced apart from each other by a predetermined distance outwardly from the width of one side of the opening of a cardboard case, etc., one end of which is fixed to the rotating shaft 5, and the other end of which is fixed to the vacuum member 1 by rotation of the rotating shaft 5. The bag E is held between the front surface of the vacuum member 1 and the front surface of the vacuum member 1. The lower end of a lever 7 is fixed to the rotating shaft 5, and the upper end of the lever 7 is rotatably connected to the tip of a piston rod 10 of a fluid cylinder 9 via a piston 8. The rear end of the fluid cylinder 9 is rotatably connected via a pin 12 to a bracket 11 attached to a frame (not shown). Similarly, on the upper surface of the vacuum member 1', two brackets 4a', 4 are provided at a predetermined distance from each other.
b' is attached, and these brackets 4a', 4b' rotatably support the rotation shaft 5'. A pair of chucks 6', which will be described later, are spaced apart by a predetermined distance from each other outwardly from the width of one side of the opening of a cardboard case, etc., and one end thereof is fixed to a rotating shaft 5', and the other end is fixed to the rotating shaft 5' by rotation of the rotating shaft 5'. The bag E is engaged with the front surface of the vacuum member 1' so that the bag E is held between the front surface of the vacuum member 1' and the bag E.
The lower end of a lever 7' is fixed to the rotation shaft 5', and the upper end of the lever 7' is connected to a fluid cylinder 9' via a pin 8'.
The piston rod 10' is rotatably connected to the tip of the piston rod 10'. The rear end of the fluid cylinder 9' is rotatably connected to a bracket 11' attached to a frame (not shown) via a pin 12'.

Next, a case where the bag E is hung on a cardboard case or the like will be explained.

First, in the first step shown in FIGS. 3a and 3b, the upper outer periphery of the manufactured bag E is sucked by the vacuum members 1 and 1', and when the upper part of the bag E is opened, the fluid cylinder 9, 9' are actuated to retract the piston rods 10, 10' from the projected state, and the other ends of the chucks 6, 6' are positioned upward. At this time, the vacuum members 1, 1' are evacuated to open the bag E, and the upper part of the bag E is suctioned by the suction holes 2, 2'. Thereafter, when the vacuum members 1, 1' are slightly moved in directions A, A' away from each other, the fluid cylinders 9, 9' are actuated to cause their piston rods 10, 10' to protrude. At this time, the chucks 6, 6' rotate and the other ends grip the top of the bag E in cooperation with the vacuum members 1, 1'. Thereafter, the vacuum members 1 and 1' are further moved in directions A and A' to separate them from each other to completely open the upper part of the bag E into a square shape. That is, the vacuum members 1, 1' and the chucks 6, 6' are separated outwardly so that the top of the bag is located outside the width of one side of the opening of the cardboard case 14, etc. Next, in the second step shown in FIGS. 4a and 4b, the bag E is placed on the core bar 1.
3 so that the core metal 13 is inserted into the bag E. Next, Figures 5a and 5b
In the third step shown in the figure, the bag E into which the core metal 13 has been inserted is placed in a rectangular cardboard case, etc.
4, vacuum members 1, 1' and chuck 6,
6' is positioned above bag E. Next, 6th a,
In the fourth step shown in Figure 6b, the vacuum member 1,
1' and the chucks 6, 6' downward, the chucks 6, 6' are positioned on the outer side of the cardboard case, etc. 14, and the bag E is folded over the top of the cardboard case, etc. 14. Next, in the fifth step shown in FIG. 7, the core bar 13 is taken out from the bag E. Next, after stopping the suction of air by the vacuum members 1, 1', the fluid cylinders 9, 9' are activated to retract the piston rods 10, 10' and position the other ends of the chucks 6, 6' upward. As a result, the upper part of the bag E is released from the grip between the chucks 6, 6' and the vacuum members 1, 1'. Then, after moving the vacuum members 1, 1' and the chucks 6, 6' upward, the vacuum members 1, 1' are brought closer together to the state shown in FIG. 3a.

The above process is one cycle of the process of hanging the bag E on the cardboard case 14, and this cycle is repeated to hang the bag.

In addition, in the above-mentioned embodiment, a case was explained in which the bag E is moved in the direction of the core metal 13 in the second step and the core metal 13 is inserted into the bag E.
In the present invention, on the contrary, the core metal 13 may be moved in the direction of the bag E and the core metal 13 may be inserted into the bag E, or the bag E and the core metal 13 may be moved simultaneously and the core metal 13 is inserted into the bag E. 13 may be inserted.

(Effects of the Invention) As explained above, according to the present invention, the work of hanging bags on cardboard cases etc. can be carried out by mechanical operation rather than by the manual labor of the worker, resulting in extremely high work efficiency. Good. In addition, even when the chuck is moved downward, there is no relative movement between the chuck and the bag, so the bag can be folded over the top of a cardboard case, etc., without damaging or tearing the bag. Can be done.

[Brief explanation of the drawing]

The attached drawings show an embodiment of the device for hanging bags on cardboard cases etc. according to the present invention, and FIG. 1 is a perspective view thereof, FIG. 2 is a sectional view taken along the line X-X in FIG. Figure 3a, Figure 3b, Figure 4a, Figure 4b
5a, 5b, 6a, 6b, and 7 are explanatory diagrams for explaining the process of hanging a bag on a cardboard case or the like. 1, 1'... vacuum member, 6, 6'... chuck,
13... Core metal, 14... Cardboard case, E...
…bag.

Claims (1)

[Scope of utility model registration request] A pair of vacuum members that can be moved toward and away from each other so as to suck the upper outer periphery of the bag-made bag and open the upper part of the bag in a rectangular shape; A pair of chucks are respectively attached to the vacuum members so as to sandwich them between the front faces of the vacuum members, and a core bar is inserted into the opened bag and inserted into a rectangular cardboard case or the like together with the bag. The vacuum member and the chuck are separated outwardly so that the top of the bag is located outside the width of one side of the opening of the cardboard case, etc. by holding the top of the bag between the front side of the vacuum member and the chuck. A device for hanging a bag on a cardboard case or the like, characterized in that the vacuum member and the chuck are moved downward after the bag is inserted into the cardboard case or the like with the metal core inserted into the bag.