JPH09290809A - Bag-breaking device for packaging bag - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enable to separate a content and the broken bag even when packaging bags are continuously fed one after another, and improve the efficiency of the bag breaking work by providing a carrying conveyor to carry broken bags, between a content housing tray and a bag breaking unit. SOLUTION: When a packaging bag P being filled with a content W is charged from the charging port 2 of a bag breaking machine, the packaging bag P is fed to a bag breaking unit 4 following a guide plate 2A and a receiving plate 2B. The packaging bag P which drops on a pair of rotating rolls 3 of the bag breaking unit 4, is crushed while being pinched by the pair of the rotating rolls 3, and a weak spot of the bag P breaks, and the content W is squeezed out. The squeezed content W drops further from a gap of a net belt 11B, and is recovered in a content housing tray 10. Also, the broken bag PC drops on the carrying-out conveyor 11 by the rotate-driving of the rotating rolls 3, and is carried by this carrying out conveyor 11, and drops from the carrying out end to a bag receiving member 13, and is recovered.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a bag breaking machine for continuously separating the contents contained in a bag.

[0002]

2. Description of the Related Art As a structure of a conventional bag breaking machine, as shown in, for example, Japanese Utility Model Publication No. 4-51142, a gutter member provided at an inner lower end of a box-shaped member and an upper part of the gutter member are provided. And a fixed plate having a plurality of through holes.
Of the movable plate having a plurality of needle-like protrusions capable of entering the respective through holes of the plate, a reciprocating drive means for moving the movable plate up and down with respect to the fixed plate, and a box-shaped structure. A bag-breaking machine has been proposed which separates the bag-filled material and the bag-breaking bag, which is provided at a side portion and has a bag loading / unloading opening.

In this case, for example, after placing the packaging bag on the fixed plate, the reciprocating drive means is operated to move the movable plate.
The bag is broken by penetrating the bag by the needle-shaped protrusions by lowering the bag, and the movable plate is lowered to press the bag to squeeze the contents inside the bag to the outside of the bag to break the bag. After the separated bag and the contents are separated, the movable plate is raised to take out the broken bag manually.

[0004]

By the way, as the structure of the above-mentioned bag breaking machine, a movable plate is mounted on the fixed plate.
The bag is ruptured by reciprocally driving the bag up and down,
It is necessary to perform a repetitive operation of supplying a new packaging bag after removing the bag, which causes a problem that the efficiency of the packaging bag breaking operation tends to be lowered.

Therefore, the present invention has been made in view of the above-mentioned problems, and even if the packaging bags to be broken are continuously supplied one after another, the contents are separated into the broken bags. It is an object of the present invention to provide a bag-breaking device for a packaging bag, which is capable of increasing the bag-breaking work efficiency by adopting a structure that allows the bag to be broken.

[0006]

In order to achieve the above-mentioned object, the present invention achieves the above-mentioned object. In the main body of the bag breaking machine, there is a loading port for loading a packaging bag filled with the contents, and the packaging loaded through this loading port. A bag breaking portion having a pair of rotating rolls for pressing and breaking the bag, a contents receiving tray for receiving the contents below the bag breaking portion, the contents receiving tray and the bag breaking portion. An endless carry-out conveyor that conveys a bag that has been broken is provided between the bags. Further, in the above-mentioned carrying-out conveyor, there is provided a bag-breaking apparatus for packaging bags, which is constituted by a net conveyor composed of a sprocket and a net-like net belt hung on a pulley. Also, in the bag-breaking device for a packaging bag, a shielding portion for preventing the contents from jumping up is provided at a part of the input port when the bag is broken. Further, there is provided a bag-breaking device for a packaging bag, which is provided between the bag-breaking portion and the final unloading end with a pressure contact roller for pressing and transporting the broken bag. Further, in the bag-breaking device for a packaging bag, which is located on the downstream side of the bag-breaking portion, a peeling plate is installed along the longitudinal direction of the outer peripheral surfaces of the pair of rotary rolls.

[0007]

BEST MODE FOR CARRYING OUT THE INVENTION According to this bag breaking device for a packing bag,
When the packaging bag filled with the contents is put into the input port of the main body of the bag breaking machine, the packaging bag is supplied to the bag breaking portion having a pair of rotating rolls, and the packaging bag is sandwiched between the rotating rolls. When the bag is sent, the contents are squeezed out while the weak parts of the bag are broken, and the broken bag falls from the bag breaking section and is placed on an endless carry-out conveyor. The bag is sent out. At the same time, apart from the bag that has been broken, the contents pass through the carry-out conveyor and are collected in the content-accommodating tray arranged below the carry-out conveyor. In addition, even if the contents jump up when the packaging bag is broken, the contents can be prevented by providing a shielding part for preventing the contents from jumping up at a part of the insertion port located above the pair of rotating rolls. The contents can be collected in the receiving tray, and the inside of the bag broken by providing a pressure contact roller for pressing and conveying the broken bag between the bag breaking portion and the final unloading end. The contents remaining in the can be further squeezed out, and further, a peeling plate is installed along the longitudinal direction of the outer peripheral surfaces of the pair of rotary rolls located downstream of the bag breaking portion. By doing so, it is possible to peel off the broken bag adhered to the rotary roll by the peeling plate, whereby the bag is placed on the endless carry-out conveyor and the bag is sent out from the carry-out conveyor. .

[0008]

Embodiments of the present invention will be described below with reference to the accompanying drawings. 1 to 5 show a first embodiment of the present invention, in which an input port 2 for inputting a packaging bag P filled with contents W is provided above a main body 1 of a bag breaking machine formed in a substantially frame shape. The input ports 2 are guide plates 2A which are provided on the left and right upper inner surface portions of the bag breaking machine main body 1 so as to be inclined downward.
And a receiving plate 2B located between the pair of left and right guide plates 2A and having a high center and a low right and left inclination, and a side plate 2C on the upper inner surface portion of the bag breaking machine body 1 in the front-rear direction. A bag breaking portion 4 having a pair of rotating rolls 3 is provided below the charging port 2.

The pair of rotating rolls 3 are assembled to the rotating shaft 5 in the bag breaking unit 4, and the rotating shaft 5 is provided in the frame-shaped bag breaking machine body 1. It is rotatably supported by bearings 6, and gears 7 having the same number of teeth are meshed with one end of each rotary shaft 5 on the outside of the bag-breaking machine body 1. A motor 8 is connected to the outside of the main body 1 through a reduction gear unit, and the rotation of each rotation roller 3 is driven at the same speed by driving the motor 8. In this embodiment, the surface of the rotary roll 3 is provided with fine irregularities 3A formed by knurling.

A peeling plate 9 is installed along the longitudinal direction of the lower outer surface of each rotating roll 3, and the peeling plate 9 is fixedly attached to the bag breaking machine body 1.

A contents storage tray 10 for receiving the contents W is disposed below the bag breaking portion 4, and is located between the contents storage tray 10 and the bag breaking portion 4. An endless carry-out conveyor 11 that conveys the bag PC that has been ruptured is provided.

Further, in this embodiment, a net conveyor is used as the endless carry-out conveyor 11, and a plurality of sprockets 11A mounted laterally in the left and right direction, and an endless spanned between these sprockets 11A. Drive belt 12 is connected to the support shaft of the sprocket 11A through a reduction gear unit or the like.

As the net belt 11B of the net conveyor, as shown in FIG. 4, a wire mesh net belt constructed so that a mesh can be formed linearly in the width direction, or a zigzag shape as shown in FIG. The content W is formed by a wire mesh net belt woven in, or a mesh net belt (not shown) made of synthetic resin so that the content W can easily fall onto the content storage tray 10.

Below the final unloading end position of the unloading conveyor 11, the bag receiving member 1 for receiving the broken bag PC.
3 are arranged.

In the packaging bag crushing apparatus of the first embodiment having the above structure, when the packaging bag P filled with the contents W is loaded from the loading port 2 of the bag crushing machine body 1, the packaging bag P is loaded. The packaging bag P, which is supplied to the bag breaking unit 4 following the guide plate 2A and the receiving plate 2B of the mouth 2 and has fallen onto the pair of rotating rolls 3 of the bag breaking unit 4, has each rotating roll 3 inside. As it rotates toward one side, it is fed while being sandwiched between the pair of rotary rolls 3, and the packaging bag P sandwiched by the rotary rolls 3 is pressed and crushed to be crushed. The contents W are squeezed out while the weak points of P are broken, and the squeezed contents W fall further downward from the gap of the net belt 11B composed of the net conveyor, and are arranged below the carry-out conveyor 11. The collected contents are stored in the receiving tray 10.

The bag PC that has been crushed is the rotating roll 3 described above.
Is driven to drop onto the endless carry-out conveyor 11 from the position of the bag breaking section 4, and the bag PC placed on the carry-out conveyor 11 is sent by the carry-out operation of the conveyor 11 and sent from the carry-out end of the carry-out conveyor 11 to the bag. It falls on the receiving member 13 and is collected.

Therefore, in the present invention, even if the packaging bags P filled with the contents W are supplied one after another, it is possible to separate the broken bag PC and the contents W while separating them, so that the packaging bag P is broken. Good bag work efficiency.

Further, the packaging bag P which is loaded from the loading port 2 of the bag breaking machine and sandwiched between the pair of rotary rolls 3 of the bag breaking portion 4 is pressed and crushed to be crushed, and the weak portion of the bag P is crushed. Since the contents W are squeezed out while being broken, even if the contents W scatter and jump up when the packaging bag P is broken.
The receiving plate 2B, which is a part of the insertion port 2 located above the pair of rotating rolls 3, is also provided as a shielding portion for preventing the contents W from jumping up. The plate 2B can prevent the contents W from scattering to the outside, and the contents storage tray 1
It can be recovered into zero.

Further, by attaching and fixing the peeling plate 9 to the bag breaking machine body 1 along the longitudinal direction of the lower outer surface of each rotary roll 3 located on the downstream side of the bag breaking unit 4, , The sacked bag PC adhered to the rotary roll 3 can be peeled off by the peeling plate 9, whereby the sacked bag PC is broken.
Can be supplied onto the carry-out conveyor 11.

FIG. 6 shows a second embodiment of the present invention. In this embodiment, two endless carry-out conveyors 1 are provided.
1 is partially overlapped in the vertical direction, and a pair of pressure contact rollers 14 is provided at the first carrying-out end position of the carrying-out conveyor 11.

Therefore, in the second embodiment, the rotary roll is
While the contents W in the bag PC are squeezed out while being sacked by the rule 3, the contents W remaining in the bag PC are paired with the pressure contact rollers provided at the carry-out end position of the first carry-out conveyor 11. By pushing it out with 14, it is possible to almost eliminate the residual content in the bag PC, and thereby the bag P that has been broken
The C and the contents W can be separated well.

In the above-described embodiment, a fine concavo-convex portion 3A is formed on the surface of the pair of rotary rolls 3 by knurling, and when the packaging bag P is pressed, the concavo-convex portion 3A wraps the rotary roll 3 in the packaging. Although the bag P is closely adhered and is hard to be attached, a number of fine holes are formed on the surface of the packaging bag P when the packaging bag P is pressure-contacted by making the tip of the uneven portion 3A sharp. Therefore, the contents W in the packaging bag P can be easily squeezed out, and the pair of pressure contact rollers 14 may be installed on the lower side of the bag breaking portion 4, and the insertion port 2 The shape, the length and the number of the conveyors 11 and the shape of the net belt 11B may be appropriately set, and a pulley or the like may be used instead of the sprocket 11A for transmitting and driving the carry-out conveyor 11.

[0023]

According to the present invention, the bag breaking machine body has a loading port for loading a packaging bag filled with contents, and the packaging bag loaded through the loading port is pressed to break the bag. A bag-breaking portion having a pair of rotating rolls, a content-receiving tray below the bag-breaking portion for receiving the content, and a bag broken between the content-receiving tray and the bag-breaking portion. An endless carry-out conveyor that conveys the packaging bag is provided to configure the bag-breaking device for the packaging bag, and the broken bag is dropped from the bag-breaking part and placed on the endless carry-out conveyor. The bag is sent out from the bag, and at the same time, apart from the bag that has been ruptured, the contents can pass through the carry-out conveyor and be collected in the content-accommodating tray arranged below the carry-out conveyor. As the carry-out conveyor, a sprocket or pulley is used. By configuring the multiplying passed mesh net conveyor consisting of a net belt, it squeezed the contents further tends to fall downward from the gap of the discharge conveyor formed of the net conveyor,
The contents can be satisfactorily collected in the contents storage tray arranged below the carry-out conveyor, and a shielding part for preventing the contents from jumping up is provided at a part of the input port when the bag is broken. Even if the contents are scattered and jumped up when the packaging bag is broken, a receiving plate that is a part of the insertion port located above the pair of rotating rolls is provided as a shielding part for preventing the contents from jumping up. By this, the receiving plate which also serves as the shielding portion can prevent the contents from scattering to the outside, and the pressure contact for pressure-transferring the bag that has been broken between the bag-breaking part and the final carry-out end. By providing the rollers, it is possible to further squeeze out the contents remaining in the bag that has been ruptured, and further to be located on the downstream side of the crushed bag portion, the outer peripheral surfaces of the pair of rotating rollers. Installation of peeling plate along the longitudinal direction of By doing so, it is possible to peel off the broken bag attached to the rotary roll with the peeling plate, and even if the packaging bags filled with the contents are successively supplied, the bag is broken. Since the bag and the contents can be collected while being separated from each other, there is an effect that the work efficiency of breaking the packaging bag can be improved.

[Brief description of drawings]

FIG. 1 is a sectional view of a main part showing the entire structure of a first embodiment of the present invention.

FIG. 2 is a cross-sectional view showing a main part of the above-described embodiment as viewed from the lateral direction.

FIG. 3 is a plan view showing a main part of the embodiment.

FIG. 4 is a partial plan view showing a main part of a net conveyor applied to the carry-out conveyor according to the embodiment.

FIG. 5 is a partial plan view showing a main part of an embodiment example of a net conveyor applied to the carry-out conveyor of the above embodiment.

FIG. 6 shows a second embodiment of the present invention, and is a schematic diagram mainly showing a carry-out conveyor and a pressure contact roller, which are main parts thereof.

[Explanation of symbols]

 P packaging bag PC crushed bag W contents 1 bag crusher body 2 input port 2B receiving plate 3 rotating roll 3A uneven part 4 crushing part 5 rotating shaft 8 motor 9 peeling plate 10 content storage tray 11 Carry-out Conveyor 11A Sprocket 11B Net Belt 12 Drive Motor 13 Bag Receiving Member 14 Pressure Contact Roller

Claims (5)

[Claims] 1. A bag breaking machine main body has a loading port for loading a packaging bag filled with contents, and a pair of rotating rolls for pressing the packaging bag loaded through the loading port to break the bag. A bag-breaking portion, a contents-accommodating tray for receiving the contents below the bag-breaking portion, and an endless shape for conveying the bag that has been broken between the contents-accommodating tray and the bag-breaking portion. A bag breaking device for packaging bags, which is provided with a carry-out conveyor. 2. The bag breaking apparatus for a packaging bag according to claim 1, wherein the carry-out conveyor is a net conveyor composed of a sprocket and a net-like net belt hung on a pulley. 3. The bag breaking device for a packaging bag according to claim 1, wherein a shield portion for preventing the contents from jumping up is provided at a part of the inlet when the bag is broken. . 4. The package according to claim 1, further comprising a pressure contact roller for pressing and conveying the broken bag between the bag breaking portion and the final unloading end. Bag breaking device. 5. The peeling plate is installed on the downstream side of the bag breaking section along the longitudinal direction of the outer peripheral surfaces of the pair of rotary rolls. A bag breaking device for the packaging bag described.