JPH07237624A - Bag tearing machine - Google Patents

Abstract

PURPOSE:To tear a trash bag with high pressure water immediately before the bag is interposed between a rotating blade and a fixed blade so as to prevent contained bottles from being interposed between the rotating blade and the fixed blade by providing a high pressure water ejection nozzle which can eject water in a reverse direction to a rotating direction of the rotating drum to the trash bag which has reached on the rotating blade. CONSTITUTION:A rotating blade 4 which rotates together with a rotating drum 1 is made into a shape having an obtuse angle so that it has only an effect for collecting empty trash bags 6. The trash bag 6 put from a chute 2 is torn without breaking bottles and cans by high water pressure ejected from a water jet 5 before a fixed blade 3 attached to a lower part on a side of the chute 2, and at the same time the trash bag 6 is fed upward with a torn part hooked by a rotating blade 4 on an internal periphery of the rotating drum 1. The empty trash bag 6 fed upward is hooked by a scraper 7 and discharged to a carry-out conveyer 11 by air from an air nozzle 8, so that the bottles and cans are fed backward through the rotating drum 1 and discharged to a discharging chute 10.

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 used in the so-called pre-treatment stage of so-called garbage bags containing garbage in vinyl bags.

[0002]

2. Description of the Related Art As described above, a bag-breaking machine is used to dispose of dust in a garbage bag, but first, the conventional bag-breaking machine uses only solid machine blades. Since it was difficult to break the bag, the damage rate of bottles contained in the garbage was high.

[0003]

The above conventional bag breaking machine has the following problems to be solved.

That is, since the conventional bag breaking machine breaks the bag with a mechanically solid blade, there is a problem that the blade hits the bottles and causes damage. If bottles are damaged during the bag breaking process, a troublesome secondary problem will occur. It is not preferable that the cans and the like also break.

An object of the present invention is to provide a trash bag breaking machine in which bottles and the like are not damaged.

[0006]

The present invention is intended to provide a bag breaking machine as described in (1) to (3) below, as a means for solving the above problems.

(1). A chute fixed for throwing garbage bags, a rotating drum that encloses at least the lower part of the chute and rotates around a substantially horizontal axis, and the inner circumference lower side maintains a required gap with the lower part of the chute, and the lower part of the chute The fixed blade fixed with the blade facing in the opposite direction to the rotating direction of the rotary drum, the rotary blade provided inside the rotary drum so as to be able to pass the vicinity of the fixed blade, and the fixed blade came on the rotary blade. A bag breaking machine, comprising: a high-pressure water jet nozzle provided so as to be able to jet water in a direction opposite to the rotation direction of a rotary drum with respect to a dust bag.

(2). A chute fixed for throwing garbage bags, a rotating drum that encloses at least the lower part of the chute and rotates around a substantially horizontal axis, and the inner circumference lower side maintains a required gap with the lower part of the chute, and the lower part of the chute The fixed blade fixed with the blade facing in the opposite direction to the rotation direction of the rotating drum, and the fixed blade is provided inside the rotating drum so that it can pass near the fixed blade and the external force is avoided according to the required external force received by the blade. A bag breaking machine, comprising a rotary blade movably provided in a direction.

(3). The bag breaking machine according to (1) above, wherein the rotary blade is provided so as to be movable in a direction of avoiding an external force according to a required external force received by the blade.

[0010]

Since the present invention is constructed as described above, it has the following actions.

(1). In the configuration of (1) above, at least the lower part of the chute fixed for throwing in the dust bag is enclosed and rotated about a horizontal axis, and the inner peripheral lower side maintains a required gap with the lower part of the chute. A rotary drum, a fixed blade fixed to the lower part of the chute with the blade in the opposite direction to the rotation direction of the rotary drum, and a rotary blade provided inside the rotary drum so as to be able to pass near the fixed blade, Since a high-pressure water jet nozzle is provided that is capable of jetting water in the direction opposite to the direction of rotation of the rotary drum with respect to the dust bag that arrives on the rotary blade, the dust bag thrown in from the chute is inside the rotary drum. When it slides down into the required gap between the lower side of the circumference and the lower part of the chute and reaches the rotary blade, high pressure water can be jetted from the high pressure water jet nozzle.

[0012] Then, immediately before being sandwiched between the fixed blade and the rotary blade capable of passing in the vicinity thereof, the garbage bag is broken with high-pressure water, so that the bottles in the garbage bag roll out. It is not pinched between the rotary blade and the fixed blade, and therefore is not damaged.

(2). In the configuration of the above (2), in the configuration including the chute, the rotary drum, and the fixed blade similar to those of the above (1), the rotary blade can move in the direction of avoiding the external force according to the required external force received by the blade. Since it is installed in the garbage bag, if there are bottles etc. in the garbage bag and it is sandwiched between the fixed blade and the rotary blade, the rotary blade moves in the direction of avoiding external force with a force that does not damage it. Bottles will not be damaged.

(3). In the configuration of (3) above, the rotary blade of the configuration of (1) above is provided so as to be movable in the direction of avoiding an external force in accordance with a required external force received by the blade, and therefore the dust crushed by high-pressure water In the unlikely event that bottles rolled out from the bag,
Even if it is sandwiched between the fixed blade and the rotary blade, the rotary blade moves in the direction of avoiding the external force by an external force that does not damage the bottles, so that the bottles can be completely prevented from being damaged.

[0015]

DESCRIPTION OF THE PREFERRED EMBODIMENTS First to third embodiments of the present invention will be described with reference to FIGS. The same components as those in the previous embodiment are designated by the same reference numerals, and the description thereof will be omitted unless necessary.

(First Embodiment) A first embodiment according to claim 1 will be described with reference to FIGS. 1 and 2.

FIG. 1 is a front view of a main part of the bag breaking machine according to this embodiment as seen in the axial direction of the rotary drum 1 (a view of FIG. 2 from the left), and FIG. 2 is a side sectional view of FIG. is there.

In both figures, 1 includes most of the lower side of the chute 2 and rotates around a substantially horizontal axis, and the lower side of the inner periphery of the chute 2 is a required gap from the lower part of the chute 2, that is, the dust bag 6 falls. A rotary drum 2 for keeping a gap necessary for breaking the bag by means of 2 is a chute fixed to the ground or the like by means not shown for throwing in the dust bag 6, and 3 is a lower part of the chute 2 with respect to a rotating direction of the rotary drum 1. , Fixed blades fixed with the blades facing in the opposite direction, 4 are rotary blades provided inside the rotary drum 1 so as to be able to pass near the fixed blades 3, and 5 are garbage bags 6 that have arrived on the rotary blades 4. On the other hand, a water jet provided in the lower part of the chute 2 so that water can be jetted in the direction opposite to the rotating direction of the rotary drum 1, and 6 is bottles and other debris enclosed.
A trash bag made of vinyl or the like, 7 a scraper for scraping the crushed empty trash bag 6 that has arrived on the rotary blade 4, 8 an air nozzle for blowing away the empty trash bag 6 scraped by the scraper 7, Reference numeral 9 is a drainage pipe for discharging water and other drain water ejected from the water jet 5, 10 is a discharge chute for discharging dust discharged from the dust bag 6, 11 is an empty dust bag 6 blown by the air nozzle 8. A carry-out conveyor 12 for discharging the air, and a cylindrical windbreak 12 provided so that the empty dust bag 6 caught on the rotary blade 4 and carried upward does not fall due to the aftermath of the jet flow from the air nozzle 8 in the middle. A guide that doubles as a guide.

To make the chute 2 easy to see, the double line indicating the plate thickness and the like is omitted as much as possible. However, in FIG. 1, the chute 2 has a thickness on the left and right sides. In FIG. 2, the dust bag 6 is surrounded by a flat plate, and the air bag 8 blows off (drops) the empty dust bag 6 on the lower side and the shaded portion where the dust bag 6 slides down from the right and the upper side.
The hatched portion indicating the boundary with the region is partitioned by each plate body, and the bottom portion (lower portion) is opened above the portion where the rotary blade 4 arrives (however, it is not limited to such a shape. ).

Further, the fixed blade 3 and the water jet 5 are constructed so that they can be finely adjusted in the axial direction of the rotary drum 1 so as to be in the optimum position with respect to the rotary blade 4 as shown by a double-headed arrow in FIG.

Next, the operation of the above configuration will be described. It has a hollow cylindrical shape and is slightly inclined toward the discharge chute 10 side, and is 1-10 rp
The rotary blade 4 which rotates together with the rotary drum 1 rotatable by m has an obtuse angle and has an effect of simply collecting the empty dust bag 6. That is, the effect of cutting through the dust bag 6 is not so expected. The dust bag 6 thrown in from the chute 2 is discharged by the high-pressure water jetted from the water jet 5 in front of the fixed blade 3 attached to the lower part of the side surface of the chute 2.
The bottles and cans are sacked without being damaged, and at the same time, the dust bag 6 is rotated (rotated) by the rotary blade 4 on the inner circumference of the rotary drum 1 and the broken portion is caught by the rotary blade 4 and sent to the upper portion. The empty dust bag 6 sent to the upper part is caught by the scraper 7 and discharged to the carry-out conveyor 11 by the air of the air nozzle 8, and the bottles and cans are sent to the rear inside the rotary drum 1 and discharged to the discharge chute 10. The high-pressure water of the water jet 5 is discharged from the drain pipe 9.

(Second Embodiment) A second embodiment according to claim 2 will be described with reference to FIGS.

FIG. 3 is a front view of the main part of the bag breaking machine according to this embodiment as seen in the axial direction of the rotary drum 1, and FIG. 4 is a side view of FIG.
FIG. 5 is an enlarged view near the rotary blade 4a in FIG.

In these figures, 4a is provided so that the blade protrudes inside the rotary drum 1 so that it can pass near the fixed blade 3, and the blade is large with the bottles 6a sandwiched between the fixed blade 3 and the like. When an external force is applied, the rotary blade 1 is provided so as to be prevented from rotating outward of the rotary drum 1 by the compression of the gas spring 15, and 6a is a bottle that has been sealed as dust in the dust bag 6, as shown in FIG. The garbage bag 6 itself is omitted. 13 is a blade base hingedly supported on the outer periphery of the rotary drum 1 to movably support the rotary blade 4a to the outside of the rotary drum 1, and 14 is connected to the blade base 13 at its tip and has a piston-like base end. A rod 15 that engages with the gas spring 15 and presses the blade base 13 so as to expand and contract, has a cylindrical shape and is rotatably connected at the base end to the rotary drum 1 side. It is a gas spring that is pressed through the blade stand 13 and the rod 14 and protrudes inside the rotary drum 1. Other configurations are the same as those of the first embodiment except that the water jet 5 and the rotary blade 4 are removed.

Next, the operation of the above configuration will be described.

When the dust bag 6 thrown into the chute 2 arrives on the rotary blade 4a and is torn between the rotary blade 4a and the fixed blade 3, if there are bottles 6a therein, they are fixed as shown in FIG. When sandwiched between the blade 3 and the rotary blade 4a, the rotary blade 4
The a receives a resisting force, that is, an external force together with the fixed blade 3.

Then, the rotary blade 4a pushes the gas spring 15 through the blade base 13 and the rod 14 with a force not to break the bottles 6a, and moves to the outside of the rotary drum 1.
Pass by while avoiding the external force from the bottles 6a. As a result, the bottles 6a are not damaged. The rotary blade 4
When passing a, the empty dust bag 6 is hooked and returned to its original position again by the restoring force of the gas spring 15, while going up, scraping the empty dust bag 6 with the scraper 7 as in the first embodiment. Taken. Since the gas spring 15 also serves as a damper, the bottles 6a are never crushed.

As described above, the gas spring 15 is used for avoiding the external force, but the gas spring is not limited to the gas spring, and a normal coil spring may be used, or a spring box may be provided on the outer circumference of the rotary drum 1 at the rotary blade 4a. Alternatively, the rotary blade 4a may be directly received by the compression spring.

Further, a pressurizing device or the like may be connected to the gas spring 15 so that the pressing force can be constantly adjusted via a controller.

(Third Embodiment) A third embodiment according to claim 3 will be described with reference to FIGS.

This embodiment corresponds to an example in which the rotary blade 4 of the first embodiment is replaced with the rotary blade 4a of the second embodiment. That is, instead of the rotary blade 4 shown in FIGS. 1 and 2, the rotary blade 4a, the blade base 13, the rod 14 and the gas spring 15 shown in FIGS.
The configuration to which is applied is the third embodiment.

In the case of the first embodiment, for example, when there are large-sized bottles, there is still a concern that the possibility of crushing is inevitable, but in the present embodiment, even such a slight possibility is rotated. There is an advantage that the possibility of crushing can be completely eliminated by the blade 4a escaping.

As described above, in the first and third embodiments, since the water jet 5 basically breaks the dust bag 6, the rotary blades 4 and 4a do not necessarily have to have so-called blades.
Unless it deviates from the purpose, crush organic matter, etc.
It suffices if it has the function of climbing upwards by hooking. That is, the rotary blade refers to such a wide range of blades.

As described above, according to the first and third embodiments,
The main body that breaks the dust bag 6 is the water jet 5, and since it is not necessary to use sharp blades for the rotary blades 4 and 4a, there is an advantage that bottles are not damaged.

According to the second and third embodiments, even if the rotary blade 4a presses bottles against the fixed blade 3,
Since the rotary blade 4a avoids the pressing force in the direction of decreasing (or not increasing) the pressing force, there is an advantage that the bottles are not damaged.

Further, for the same reason, according to the first to third embodiments, there is an advantage that the cans and the metal pieces are not broken or caught.

[0037]

Since the present invention is constructed as described above, it has the following effects.

That is, according to the first and third aspects of the present invention, since the trash bag 6 is ruptured mainly by water jet from the high-pressure water jet nozzle, the bottles can be collected without damage.

According to the second and third aspects of the present invention, even if bottles are caught between the fixed blade and the rotary blade, the rotary blade can avoid the external force according to the external force received by the blade. Since it moves in the direction, you can still collect bottles without damaging them.

[Brief description of drawings]

FIG. 1 is a front view of a bag breaking machine according to a first embodiment of the present invention,

FIG. 2 is a side sectional view of the first embodiment,

FIG. 3 is a front view of a bag breaking machine according to a second embodiment of the present invention,

FIG. 4 is a side sectional view of the second embodiment,

5 is an enlarged view of the vicinity of the rotary blade 4a in FIG.

[Explanation of symbols]

 1 Rotating Drum 2 Chute 3 Fixed Blade 4, 4a Rotating Blade 5 Water Jet 6 Garbage Bag 6a Bottles 9 Drain Pipe 13 Blade Stand 14 Rod 15 Gas Spring

Front page continued (72) Inventor Ken Yamanishi 12 Nishiki-cho, Naka-ku, Yokohama City Mitsubishi Heavy Industries, Ltd. Yokohama Research Laboratory

Claims (3)

[Claims] 1. A chute fixed for loading a garbage bag,
A rotating drum that encloses at least the lower part of the chute and rotates around a substantially horizontal axis, and the inner circumference lower side maintains a required gap with the lower part of the chute, and the lower part of the chute is opposite to the rotating direction of the rotating drum. The fixed blade fixed with the blade facing, the rotary blade installed inside the rotary drum so that it can pass near the fixed blade, and the direction of rotation of the rotary drum with respect to the dust bag arriving on the rotary blade. A bag breaking machine, comprising: a high-pressure water jet nozzle provided so that water can be jetted in a direction. 2. A chute fixed for loading a garbage bag,
A rotating drum that encloses at least the lower part of the chute and rotates around a substantially horizontal axis, and the inner circumference lower side maintains a required gap with the lower part of the chute, and the lower part of the chute is opposite to the rotating direction of the rotating drum. A fixed blade fixed with the blade facing, and a rotary blade provided inside the rotating drum so as to be able to pass near the fixed blade and movable in a direction to avoid an external force according to a required external force received by the blade. A bag breaking machine characterized by comprising: 3. The bag breaking machine according to claim 1, wherein the rotary blade is provided so as to be movable in a direction of avoiding an external force according to a required external force received by the blade.