JPH10273113A - Bag opener - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a bag opener which can easily and quickly perform opening operation of bags. SOLUTION: A first suction mechanism 20 for sucking a side of a back A is moved to a predetermined position by a first moving mechanism 30 to suck the other side of the bag A by a second suction mechanism 30, and at the same time a second suction mechanism 40 is moved by a second moving mechanism 50 to have the bag A opened. Then an opening of the bag A is held by a holding mechanism 60 in an opening shape in which an arbitrary article to be received can be put in, thereby allowing the bag A to be opened automatically.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a bag opening device for storing a cartridge containing a sealant used as a construction material in a bag for packaging.

[0002]

2. Description of the Related Art In general, a sealant used as a construction material is filled in a special cartridge during manufacturing,
It is stored in a packaging bag and shipped. In this case, the bag has an opening at one end, and an operator manually inserts the cartridge while holding the opening of the bag in an open state.

[0003]

However, in the prior art, the bag has to be opened manually, and the bag is closed in a plane, so that, for example, an operator breathes into the opening of the bag. Extremely troublesome opening work, such as inserting a cartridge after blowing the bag to inflate the bag, required a considerable reduction in productivity.

SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and an object of the present invention is to provide a bag opening device capable of easily and quickly opening a bag.

[0005]

According to a first aspect of the present invention, there is provided a bag body opening device, comprising: a first suction means for sucking one side of a bag body having an opening at one end; ,
A first moving unit that moves the first suction unit that has sucked the bag to a predetermined position, a second suction unit that suctions the other side surface of the bag that has been moved to the predetermined position by the first moving unit, A second moving means for moving at least one of the first and second suction means in a predetermined direction while adsorbing the bag to open the bag, and an opening of the bag opened by the second moving means Holding means for holding the portion in a predetermined shape into which arbitrary storage items can be inserted. Thus, the first suction means, which has sucked one side of the bag, is moved to the predetermined position by the first moving means, and the other side of the bag which has moved to the predetermined position is sucked by the second suction means. The first and second suction means are moved by the second moving means to open the bag body, and the opening of the bag body is held by the holding means in an open state of a predetermined shape into which arbitrary storage items can be put. Therefore, the opening operation of the bag body is automatically performed.

According to a second aspect of the present invention, in the bag opening device according to the first aspect, air discharging means for discharging air into the bag held in the open state by the holding means is provided. Thereby, in addition to the effect of the first aspect, the bag is expanded by the air discharged into the inside of the bag.

According to a third aspect of the present invention, in the bag opening device according to the first or second aspect, when the holding means is inserted into the opening of the bag, the plurality of movable members press against the inner peripheral surface of the bag. It is constituted by. Accordingly, in addition to the function of the first or second aspect, each movable member of the holding means is pressed against the inner peripheral surface of the bag body, so that the bag body is held in an open state of a predetermined shape.

[0008]

1 to 10 show an embodiment of the present invention. FIG. 1 is a front view of a bag opening device, and FIG.
FIG. 3 is a plan view of the holding mechanism, FIG. 3 is a partial cross-sectional side view in the direction of arrows XX in FIG. 2, and FIGS.

In this bag opening device, a frame 1 serving as an apparatus main body, a storage case 10 for storing a bag A whose one end can be opened, and a first side for adsorbing one side surface of the bag A in the storage case 10 are provided. The suction mechanism 20, a first moving mechanism 30 that moves the first suction mechanism 20 that has suctioned the bag A to a predetermined position, and a second suction that suctions the other side of the bag A that has been moved by the first moving mechanism 30 A mechanism 40, a second moving mechanism 50 for moving the second suction mechanism 40 in a predetermined direction, a holding mechanism 60 for holding the opening of the bag body A in a substantially circular opening state, and a bag body held in the opening state Air nozzle 70 for discharging air into A
And a receiving case 80 for receiving the bag A dropped into the holding mechanism 60 after an arbitrary storage B is thrown therein.

The storage case 10 is formed in a box shape with an open upper surface, and stores therein a bag A which is closed in a planar shape.

The first suction mechanism 20 includes a suction pad 21 connected to suction means (not shown) and a cylinder 22 connected to the suction pad 21. The cylinder 22 causes the suction pad 21 to reciprocate in a predetermined direction. It has become.

The first moving mechanism 30 includes a support plate 31 for supporting the cylinder 22 of the first suction mechanism 20 and a cylinder 32 connected to the support plate 31. The support plate 31 is connected to the support shaft 31a by the cylinder 32. It is designed to rotate around the center. That is, the first moving mechanism 30 causes the first suction mechanism 20 to rotate upward from a position where the suction pad 21 faces downward to a position where it faces sideways. Further, the cylinder 32 is rotatably connected to the support plate 31 and the frame 1 side, respectively, and the rotation of the cylinder 32 itself allows a positional shift of a connection point with the support plate 31.

The second suction mechanism 40 includes a suction pad 41 connected to suction means (not shown). The suction pad 41 is arranged to face the suction pad 21 of the first suction mechanism 20.

The second moving mechanism 50 includes a support plate 51 for supporting the second suction mechanism 40 and a cylinder 52 connected to the support plate 51.
0 is moved in a direction of moving forward and backward with respect to the first suction mechanism 20.

The holding mechanism 60 includes a plurality of movable plates 61 arranged in a circumferential direction with respect to each other, and a substrate 6 supporting each movable plate 61.
2, a cylinder 63 connected to the substrate 62, and a substrate 62
And a locking plate 64 arranged below the lock plate. Each movable plate 6
Numerals 1 are rotatably supported by support plates 62a of the substrate 62, respectively, and are urged in a direction in which one ends approach each other by a spring 61a wound around a rotation shaft. FIG.
As shown in (a), one end of each movable plate 61 is inserted into a through hole 62b provided in the center of the substrate 62, and the other end of each movable plate 61 has a locking roller 61b located outside the substrate 62. Is installed. The cylinder 63 is fixed to the frame 1 and moves the substrate 62 in the vertical direction. The locking plate 64 has a notch 64a through which the substrate 62 can be inserted in the vertical direction, and is fixed to the frame 1 via a plurality of columns 64b. That is, in the holding mechanism 60, when the substrate 62 is lowered by the cylinder 63 and the notch 64a of the locking plate 64 is inserted, the locking roller 61b of each movable plate 61 is locked as shown in FIG. Each movable plate 61 rotates in the opening direction of the bag A by contacting the plate 64. An insertion port 1 a provided in the frame 1 is disposed above the holding mechanism 60, and the stored items B inserted into the insertion port 1 a fall between the movable plates 61.

One end of the air nozzle 70 is connected to an air supply source (not shown), and the other end is arranged to face downward from above the holding mechanism 60.

The receiving case 80 is installed obliquely below the holding mechanism 60 and has two open upper surfaces. Also,
In the receiving case 80, a sensor 81 for detecting the received bag A is provided.

In the bag opening device constructed as described above, the suction pad 21 of the first suction mechanism 20 descends into the housing case 10 as shown in FIG. As shown in FIG. 6, the first suction mechanism 2
The bag A that has been sucked to the first
It moves to a position facing the suction pad 41 of the suction mechanism 40. Next, as shown in FIG. 6, after the suction pad 41 of the second suction mechanism 40 is moved to one side by the second moving mechanism 50 to be sucked on the other side of the bag A, the suction pad 41 is moved to the other side. As a result, as shown in FIG. 7, both side surfaces of the bag A are drawn toward the suction pads 21 and 41, and the upper end of the bag A is opened. Subsequently, the substrate 62 of the holding mechanism 60 is lowered, and each movable plate 61 is inserted into the opening of the bag A, and the locking roller 61b of each movable plate 61 comes into contact with the locking plate 64, and each movable plate 61 is moved. The plate 61 rotates outward, and the opening of the bag body A is held in a substantially circular shape by each movable plate 61. that time,
As shown in FIG. 8, air is discharged from the air nozzle 70 toward the inside of the bag body A, and the bag body A expands. Then, when the storage item B is inserted into the insertion port 1a, the storage item B is stored in the bag body A held in the open state by the holding mechanism 60, and the suction of the suction mechanisms 20, 40 is released to release the movable plate. 6
Closing the bag 1 causes the bag A containing the stored items B to fall into the receiving case 80 as shown in FIG. In the receiving case 80, the presence or absence of the bag A is detected by the sensor 81, and when it is detected that the bag A is removed from the receiving case 80, the above-described series of operations is repeated.

As described above, according to the bag opening device of the present embodiment, the first suction mechanism 20 that has suctioned one side of the bag A is moved to the predetermined position by the first moving mechanism 30, and the second suction mechanism is moved. The other side of the bag A is sucked by 30 and the second sucking mechanism 40 is moved by the second moving mechanism 50 to open the bag A, and the opening of the bag A is held by the holding mechanism 60 to remove the stored item B. The opening of the bag A can be automatically performed because the opening is held in a substantially circular opening state that can be inserted, and the storage B can be easily and quickly inserted into the bag A. . In addition, since the bag A is expanded by discharging air from the air nozzle 70 into the bag A held in the open state by the holding mechanism 60, the storage B can be more easily put into the bag A. It can be done reliably. Further, since the holding mechanism 60 is composed of a plurality of movable plates 61 which rotate in a direction of pressing against the inner peripheral surface of the bag A when inserted into the opening of the bag A, each movable plate 61
Thereby, the bag body A can be reliably held in the open state.

In the present invention, a plurality of bags A can be processed at the same time by providing a plurality of mechanisms shown in the above embodiment. In this case, for example, in the first moving mechanism 30, a plurality of support plates 31 supporting the first suction mechanism 20 are attached to a common support shaft 31a, and the cylinder 31
If each support plate 31 is configured to rotate integrally, the size of the entire apparatus can be reduced.

[0021]

As described above, according to the bag opening device of the first aspect, since the opening operation of the bag can be automatically performed, it is easy and quick to put the stored items into the bag. And productivity can be improved.

According to the bag opening device of the second aspect,
In addition to the effects of the first aspect, the bag held in the open state can be expanded, so that the stored items can be more reliably put into the bag.

According to the bag opening device of the third aspect,
In addition to the effects of the first and second aspects, the bag body can be reliably held in the open state, which is extremely advantageous in practical use.

[Brief description of the drawings]

FIG. 1 is a front view of a bag opening device showing an embodiment of the present invention.

FIG. 2 is a plan view of a holding mechanism of the bag opening device.

FIG. 3 is a partial cross-sectional side view taken along line XX in FIG. 2;

FIG. 4 is an explanatory view of the operation of the bag opening device.

FIG. 5 is an explanatory view of the operation of the bag opening device.

FIG. 6 is an explanatory view of the operation of the bag opening device.

FIG. 7 is an explanatory view of the operation of the bag opening device.

FIG. 8 is a diagram illustrating the operation of the bag opening device.

FIG. 9 is a diagram illustrating the operation of the bag opening device.

FIG. 10 is a diagram illustrating the operation of the bag opening device.

[Explanation of symbols]

20 ... first suction mechanism, 30 ... first moving mechanism, 40 ... second
Suction mechanism, 50: second moving mechanism, 60: holding mechanism, 61
... movable plate, 70 ... air nozzle, A ... bag body, B ... stored things.

Claims (3)

[Claims] A first adsorbing means for adsorbing one side surface of the bag having an opening at one end; a first moving means for moving the first adsorbing means adsorbing the bag to a predetermined position; A second suction means for sucking the other side surface of the bag moved to a predetermined position by the first moving means, and moving at least one of the first and second suction means in a predetermined direction while holding the bag. And a holding means for holding the opening of the bag body opened by the second moving means in a predetermined shape into which arbitrary storage items can be put. Bag opening device. 2. The bag opening device according to claim 1, further comprising an air discharging means for discharging air into the bag held in an open state by said holding means. 3. The bag opening according to claim 1, wherein said holding means is constituted by a plurality of movable members which are pressed against the inner peripheral surface of the bag when inserted into the opening of the bag. apparatus.