JPS6243961Y2 - - Google Patents

Description

[Detailed description of the invention] This invention is a packaging machine that performs packaging using cylindrical original bags such as gusset-folded bags. This invention relates to a device that automatically connects original bags.

Conventionally, when joining original bags supplied to such a packaging machine, the line is temporarily stopped or the items to be packaged are placed in a bypass stocker, and the original bags are joined together during that time. It is true. However, performing such an operation every time it becomes necessary to join original bags together is complicated and reduces productivity. The present invention has been made in view of such problems, and aims to provide an original bag connecting device that can automatically connect original bags and supply them to a packaging machine without temporarily stopping the line. This is the purpose.

However, the object of the present invention is to provide a device for use in a packaging machine that performs packaging using rolls made of cylindrical raw bags, which are installed sequentially along the passage path of the raw bag rolls and raw bags. A device group consisting of a raw bag out sensor, a raw bag cutter, a suction plate for end stabilization, and a pair of upper and lower pasted suction plates; a loading table on which two pairs of the device group are arranged in parallel; It consists of a brake roll and a register sensor that are arranged in series with one of the two pairs of device groups by moving the table, and the first device group is arranged in series with the brake roll and register sensor. When supplying a roll of raw bags, the second device group suctions and holds the tip of the roll of other raw bags with an attached suction plate so that it opens vertically. When the bag breakage sensor issues a signal and the end stabilizing suction plate supports the end of the original bag, the loading table moves to overlap and connect the tip of another original bag to the end of the original bag, and also applies a brake. This is achieved by an original bag connecting device characterized in that the roll and register sensors are arranged in series with the second device group.

Embodiments of the present invention will be described below with reference to the accompanying drawings.

1 and 2 are a front view and a plan view showing an embodiment of the original bag connecting device according to the present invention. Reference numeral 1 denotes a roll made of a cylindrical original bag, which is supplied to a packaging machine (not shown) via a drape roll 12. In addition to the gusset fold shown in FIG. 3, this original bag can take various cylindrical shapes depending on the packaging required. Between the original bag roll 1 and the duller roll 12, along the passage path of the original bag roll 1, there are a raw bag cutter 18, a raw bag cutter 13, and a raw bag cutter 13.
An end stabilizing suction plate 6, a pasting suction plate 10, a brake roll 11, and a register mark sensor 17 are arranged in this order. original bag roll 1, original bag out sensor 18, original bag cutter 13,
A device group consisting of the end stabilizing suction plate 6 and the pasting suction plate 10 is installed on a loading table 19.
On top of the device group 9, in parallel with the device group described above, there is a device group paired with this device group, that is, a raw bag roll 2 and a raw bag out sensor 1.
8', a bag cutter 13', an end stabilizing suction plate 6', and a pasting suction plate 10'. In this embodiment, in order to easily cut the original bag, the original bag cutter 1 is used.
3 and 13' are provided with an original bag holding plate 14, a guide roller 15, and a cutter receiver 16. As shown in Fig. 4, the raw bag roll 2 has a notch 3 in the raw bag so that the tip of the raw bag opens upward and downward.
An adhesive tape 4 such as a metal tape is attached to the tip of this original bag, and the tip, which is open at the top and bottom, is held by suction by the upper and lower attachment suction plates 10'. At this time, it is desirable that the width of the end portion is slightly narrower than the width of the original bag 2, as shown in FIG.
Also, register mark sensor 1 is installed on the original bag roll.
The register marks 5 detected by the bag cutter 7 are attached at intervals of a predetermined pitch, and the original bag cutter and the register mark sensor are attached at a predetermined number of pitches (one pitch is the length of the original bag required for packaging). do)
placed at a distance. In Fig. 1, the original bag cutter 13 and the register mark sensor 17 are 3
They are placed at pitch intervals.

In the embodiment shown in FIGS. 1 and 2, the original bag roll 1 is being fed to the packaging machine, and at this time the brake roll 11 is released. When the supply of the original bag roll 1 is completed and the original bag out sensor 18 detects the end of the original bag supply, the brake roll 11 is activated to reduce the speed of supply of the original bag 1 to the packaging machine. At this time, it is also possible to first detect a decrease in the number of original bags by the original bag reduction sensor 23 to ensure that the end of original bag supply is detected.
When the first register mark 5 is detected by the register mark sensor 17 after the brake roll 11 is actuated, the brake roll 11 moves the original bag 1
supply is stopped and the suction plate 6 for stabilizing the end is moved to the second
Move forward in the direction of the arrow in the figure. The end stabilizing suction plate 6 is connected to the parent-child cylinder 24, for example, so as to perform a two-step operation. Next, the original bag 1 is cut by the original bag cutter 13, and in order to stably maintain the posture of the cut end of the original bag, suction by the suction plate 6 for stabilizing the end is started. After the suction starts, the brake roll 11 is slightly released and the next register mark 5
The original bag 1 is advanced by a pitch until it is detected. When the next register mark 5 is detected by the register mark sensor 17, the supply of original bags is stopped by the brake roll 11 again. It is located slightly behind the tip of the original bag roll 2 held, and is held by suction by the end stabilizing suction plate 6. When the supply of original bags 1 is stopped again in this way, the loading table 19 moves, and the original bag roll 2, original bag out sensor 18',
A device group consisting of an original bag cutter 13', an end stabilizing suction plate 6', and a pasting suction plate 10' is arranged in series with the brake roll 11 and the register mark sensor 17. This movement of the loading table 19 is carried out by, for example, the cylinder 2.
This is done by 0. In FIG. 2, by moving the loading table 19, A→B, B→C
The device group is moved onto the line. However, in this case, the end stabilizing suction plate 6 moves forward by the slave cylinder in the opposite direction to the movement of the loading table 19 while sucking and holding the cut end of the original bag 1 . Therefore, loading table 19
Even with this movement, the end of the original bag 1 is held at the same position as before the loading table 19 was moved.
Therefore, as shown in FIGS. 5 and 6, after the loading table 19 is moved, the tip end of the original bag roll 2 is in a shape to sandwich the final end of the original bag 1 from above and below. Thereafter, the upper and lower adhesion suction plates that hold the tip of the original bag roll 2 are operated, and the original bag 1 and the original bag 2 are connected by the adhesive tape at the tip of the original bag roll 2. At this time, the end stabilizing suction plate that was holding the end of the original bag 1 retreats,
After the connection has been completed, the brake roll 11 is released and the packaging machine continues to be fed. In addition, when the connection part connected in this way is put on the packaging machine, the packaging bag 2 with adhesive tape is attached as shown in Figure 8.
1 and a packaging bag 22 with a slightly open side, which can be discharged out of the line at the rear of the packaging machine by a shift signal.

Since the present invention is configured as described above, when the supply of the original bag 1 is finished, the original bag 2 to be supplied next
The connection between the original bags 2 and 2 is automatically performed, and there is no need to perform the complicated work of joining the original bags together as in the past, and it is sufficient to simply attach the original bags 2 and set them on the suction plate. Therefore, these connections are automatically made alternately, which improves productivity and also leads to labor savings.

Although one embodiment of the present invention has been described in detail above, it will be obvious to those skilled in the art that various other embodiments can be implemented within the scope of the present invention.

[Brief explanation of the drawing]

Figures 1 and 2 are a front view and a plan view, respectively, showing one embodiment of the present invention, Figure 3 is an explanatory diagram showing a gusset fold that is compatible with the device of the present invention, and Figure 4 is an illustration of the connected source. Plan view of the tip of the bag,
FIGS. 5 to 7 are schematic perspective views showing the connection of the original bag in order, and FIG. 8 is a perspective view showing the connection portion formed as a packaging bag.

Claims (1)

[Scope of utility model registration request] A device used in a packaging machine that performs packaging using a roll made of cylindrical raw bags, which includes a raw bag cutter, a raw bag cutter, and a raw bag cutter installed sequentially along the raw bag roll and the raw bag passage path. A device group consisting of an end stabilizing suction plate and a pair of upper and lower pasting suction plates, a loading table for arranging two pairs of the device group in parallel, and a loading table for disposing the two pairs of devices in parallel; A brake roll and a register sensor are arranged in series with either one of the device groups, and when the first device group is located in series with the brake roll and the register sensor and supplies one original bag roll. Then, a second device group uses a pasted suction plate to suction and hold the tip of the other raw bag roll so that it opens up and down, and a raw bag out sensor in the first device group issues a signal to open the end of the other raw bag roll. When the stabilizing suction plate supports the end of the original bag, the loading table moves to overlap and connect the tip of another original bag to the end of the original bag, and also connects the brake roll and register sensor to the second device group. A raw bag connecting device characterized in that the original bag connecting device is arranged in series with the original bag connecting device.