JPS606037Y2 - Resin bag stacking and transfer device - Google Patents

Description

[Detailed description of the invention] Industrial field of application The present invention is a bag-making machine that is manufactured and sequentially sent out, for example, at the bottom of a bag-making machine that transports raw material intermittently and performs welding and cutting during the intermittent stops. The present invention relates to a resin bag stacking and transporting device that stacks a set number of plastic bags and then transports them rearward.

Structure of conventional example and its problems Conventionally, as shown in FIG.
1 and stacked on the belt 22 of the conveyor, and with the predetermined number of bags stacked, the tips of the groups of 20 resin bags are pressed by the presser 23 above the stopper 21, and then the stopper 21 is raised. It has been proposed to transport it backwards by moving a conveyor.

According to such a conventional format, the resin bag 2 that has been sent out
When the sheets 0 are stacked in contact with the stopper 21 arranged in a vertical position, the tips thereof curl up as they move upward, and even if they are held down with the presser 23 in this state,
Since the curled up tip is simply pressed against the elasticity of the resin bag 20, it will return to its original state due to the elastic repulsive force as the presser 23 rises.

Therefore, even though the presser 23 is applied, the resin bag group cannot be flattened.

In addition, in the conventional method in which the tips of the 20 groups of resin bags are pressed with a presser at the top of the stopper 21, only the tips are pressed, and at this time air moves to the center, and the stacked resin bags are There is a risk of it shifting (sliding).

Purpose of the invention The present invention proposes a resin bag stacking and transporting device that can solve the above-mentioned problems.

Structure of the Invention In order to achieve the above object, the resin bag stacking and transferring device of the present invention is provided with a conveyor for receiving resin bags that can be driven intermittently at the bottom of a bag making machine that intermittently sends out resin bags. A stopper is provided above the starting end of the bag, and the stopper is inclined so that the lower end is on the lower side, and is movable up and down while maintaining the inclination position, and below the stopper is a presser that is movable up and down on the central part of the group of resin bags fed out at a predetermined pitch. has been established.

Embodiment and Function An embodiment of the present invention will be described below with reference to FIGS. 1 to 5.

In FIG. 1, an intermittent delivery roll 1 and a cutting device 2, which are the rear part of the bag making machine, are shown.

Reference numeral 3 denotes a conveyor installed at the lower end of the cutting device 2, which has a pair of front and rear wheels 4, 5, a belt 6 stretched between the two wheels 4, 5, and an intermittent drive linked to the lower wheel shaft 7. It consists of a device (not shown), etc.

Reference numeral 8 denotes a stopper provided above the starting end of the conveyor 3, which is inclined so that its lower end is on the lower side, and its inclination angle α is, for example, 80 degrees to 85 degrees.

Further, this stopper 8 can be freely raised and lowered in the above-mentioned inclined position between the resin bag receiving position where it contacts the stacked resin bags 9 and the non-receiving position where it escapes upward. This is possible with rotary solenoids.

A presser 10 is disposed below the stopper 8 and is movable up and down against the central portion of the group of 9 resin bags fed out by one pinch.
Its lifting and lowering is performed by cylinders, rotary solenoids, etc.

FIG. 1 shows a state in which resin bags 9 manufactured by the bag making machine and intermittently delivered are received.

That is, the stopper 8 is in a receiving position where its lower end is in contact with the stacked resin bags 9 stacked and transferred in the previous step, and the presser 10 is in an elevated non-operating position.

During such a stacking operation, the stopper 8 is inclined as shown by the solid line in FIG. 5, so that the resin bags 9 are stacked without their tips being rolled up.

In response to a signal that sends out a predetermined number of resin bags, for example, one piece of resin bag, the stopper 8 is activated as shown in the phantom lines in FIGS. 2 and 5.
is lifted up in a tilted position.

Thereafter, the conveyor 3 is moved by a predetermined pitch as shown in FIG.

Then, as shown in FIG. 4, the stopper 8 descends and comes into contact with the upper surface of the stacked resin bag 9' to receive the next resin bag 9.

Immediately after that, the presser 10 descends and presses the central part of the nine groups of stacked resin bags that have been moved by a predetermined pitch to remove air in the middle and flatten them.

The pressing by the presser 10 may be continued until the next motion, that is, the stopper 8 starts to rise, or may be removed midway.

Effects of the invention As stated above, according to the invention, the resin bags that are intermittently sent out from the bag-making machine are caught by a stopper that is inclined so that the bottom end is facing down, so that the end of the bag is curled up. They can be stacked in an orderly manner without any problems, and subsequent handling can be carried out easily and reliably.

In addition, since the center of the stacked resin bags fed out at a predetermined pitch is pressed by a presser below the stopper, the air inside can be discharged uniformly toward the edges around the entire circumference, and the center can be kept in close contact with each other during movement. It is possible to prevent misalignment from occurring.

[Brief explanation of drawings]

Figures 1 to 5 show an embodiment of the present invention, Figures 1 to 4 are side views showing the operating state, Figure 5 is a side view of the main parts in Figure 1, and Figure 6. FIG. 2 is a side view of main parts of a conventional example. 1... Intermittent feed roll, 2... Cutting device, 3... Conveyor, 4, 5...
Wheel body, 6...belt, 7...wheel shaft,
8...stopper, 9...stacked resin bags, 10...presser.

Claims (1)

[Scope of utility model registration request] A conveyor for receiving resin bags that can be driven intermittently is provided at the bottom of the bag-making machine that intermittently sends out resin bags, and the conveyor is tilted above the starting end of the conveyor so that the bottom end is at the bottom, and the conveyor is raised and lowered while maintaining the tilted position. A resin bag stacking and transferring device characterized in that a freely movable stopper is provided, and a presser is provided below the stopper that can be raised and lowered against the central portion of a group of resin bags fed out at a predetermined pitch.