JPH101122A - Bag removing machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a bag removing machine inexpensive, small in size and capable of removing bag pieces broken in advance out of refuse and disposing of a large volume of the bag pieces. SOLUTION: This bag removing machine comprises an endless conveyor 1 having a number of bag collecting plates 7 mounted to a transfer face thereof, a hopper 11 which is provided on an inlet side of a frame 2 accommodating therein the endless conveyor 1 and into which a mixture of broken bag pieces with refuse is charged, a discharge port 26 for refuse and inlet port for collected bag pieces, both being provided at the outlet of the endless conveyor 1, a number of curved hook-shaped or hook-shaped slant catchers 24 being hangingly supported by a support member 22 provided above the vicinity of the outlet of the endless conveyor 1 and having a restoring force of returning to an original position, respectively, and a large number of press bars 29 being hangingly supported by a support member 27 provided above the outlet of the endless conveyor 1 and having a restoring force of returning to an original position, respectively. When a bag is transferred in an incompletely broken state, an outer cover of the bag is caught by the curved hook-shaped or hook-shaped slant catchers 24, and the contents in the bag are completely taken out by the bag collecting plates 7. Then, a bag piece out of which the contents are completely taken is pressed against the transfer face of the endless conveyor 1 by the press bars 29, and the collection of the bag pieces is efficiently performed by the bag collecting plates 7.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION The present invention relates to combustible refuse and recyclable refuse, such as plastic bags, collected in a waste disposal site as household refuse, or plastic bags.
The present invention relates to a bag removing machine that separates and removes bag pieces previously broken by a bag breaking machine when separating and collecting aluminum cans, steel cans, plastic bottles and the like (hereinafter referred to as refuse).

[0002]

2. Description of the Related Art Waste discharged from ordinary households may be separated into combustible waste and recyclable waste (including non-burnable waste) or mixed waste. In both cases, household waste is generally vinyl. Collected as bags.
Therefore, at the waste disposal site, take out the stored waste from the plastic bags and separate it into combustible waste, recyclable waste, and incombustible waste, collect the recyclable waste, incinerate the combustible waste, and incinerate the residue into non-combustible waste. And used for landfill.

[0003] Conventionally, in the operation of taking out stored garbage from a vinyl bag, the vinyl bag has been manually broken and taken out. However, the contents of the vinyl bag are not limited to empty cans and bottles, but may also contain filthy or sharply shaped, extremely dangerous ones. In addition to safety issues such as the generation of foul odors and fouling due to the decay of liquids, this is a work that exceeds the limit of human patience from the viewpoint of hygiene, and recently a bag breaking machine that mechanically breaks bags was introduced. Local governments are increasing.

As a device for breaking a vinyl bag containing garbage, several roller conveyors suspended by a chain are arranged above a conveyor on the lower surface on which the garbage bag is placed and moved. A device that is provided with hooks for hooking bags and that changes the traveling speed of several roller conveyors and the conveyor on the lower surface to twist and break garbage bags sandwiched between upper and lower conveyors ( Japanese Patent Publication No. Sho 62-21578), a plurality of plate-like moving blades which are provided with a garbage bag receiving plate having a plurality of rows of slits arranged side by side, and which move inside each slit while projecting from the upper surface of the receiving plate. While shifting the body at required intervals for each row,
A plurality of movable blades are disposed with a phase that forms a receding angle with respect to the traveling direction, and one end of each of the movable blades is rotatably supported above the plurality of movable blades at a required interval through which the movable blades can pass. And a plurality of moving blades and the rotating blade break a garbage bag on the upper surface of the receiving plate, and receive a tip of the moving blade. There has been proposed an apparatus configured to be immersed from the upper surface to the lower surface of the plate (Japanese Patent Laid-Open No. Hei 6-170269).

[0005] Further, the present applicants have invented a pair of belt conveyors having a large number of non-slip plates provided on a conveying surface, inwardly inclining each other, and facing each other in an inverted C-shaped cross section with a gap therebetween. An endless chain in which the upward blades are arranged in a line with the rotation direction facing the rotation direction, facing the lower side of the belt conveyor such that the upward blades protrude from the gap, and on the entry side of the machine frame that houses the belt conveyor. The hopper that puts in the garbage bag has a discharge port for the garbage after the bag is broken on the outlet side, and the garbage bag moves toward the center of the belt conveyor and moves at a speed higher than the rotation speed of the belt conveyor. Developed a bag breaking machine that cuts a bag with a blade plate.
-274877.

[0006]

SUMMARY OF THE INVENTION The above Japanese Patent Publication No. Sho 62-21
The conventional bag breaking device disclosed in Japanese Patent Application Laid-Open No. 578-578 and JP-A-6-170269 and the bag breaking machine described in Japanese Patent Application No. 7-274877 only break a garbage bag. Since the bag pieces are transported together with the garbage, there is a disadvantage that a bag removing device for collecting and removing the broken bag pieces is required before collecting cans, bottles, plastic bottles, and the like. I have. In addition, it is difficult for these bag breaking machines to break the garbage bags to completely remove the garbage from the bag pieces, and the garbage may remain in the broken bag pieces. There is a need for a bag removing device capable of completely removing waste from the bag pieces. Therefore, many municipalities that have already introduced bag-breaking devices often desire the appearance of a small-sized, inexpensive bag-removing device capable of large-capacity processing.

SUMMARY OF THE INVENTION An object of the present invention is to solve the above-mentioned drawbacks of the prior art, to remove bag pieces previously broken by a bag breaking machine from garbage and to pass through without stopping even if large foreign matter is mixed. It is an object of the present invention to provide a small, inexpensive bag removing machine capable of large-capacity processing.

[0008]

According to a first aspect of the present invention, there is provided a bag removing machine provided with an endless conveyor having a large number of bag collecting plates mounted on a conveying surface and an input side of a machine frame accommodating the endless conveyor. A hopper for introducing broken bag pieces and waste, an outlet for waste after removal provided at the end of the endless conveyor, an inlet for bag collection pieces, and a support member above the endless conveyor outlet. It consists of a number of curved crochet or crochet-shaped inclined catchers having a restoring force to the original position supported, and a number of holding rods having a restoring force to the original position suspended on the support member above the endless conveyor outlet, The envelope of the bag that is transported as it is incompletely broken is captured by a curved crochet or crochet-shaped inclined catcher, and the waste is completely escaped by the bag collecting plate.
The bag pieces from which the waste has escaped are pressed against the conveying surface of the endless conveyor with a holding rod, so that the bag pieces are efficiently collected by the bag collecting plate.

According to a second aspect of the present invention, there is provided a bag removing machine according to the first aspect of the present invention, wherein a transport surface of an endless conveyor located below a hopper for introducing broken bags and refuse is provided. A rubber-lined strip with a multi-row upper surface with the rear end fixed is laid between the bag collecting plates to prevent bag pieces and garbage from being transported excessively forward by the endless conveyor, and a hopper. This prevents the bottles from being damaged when they are put into the container.

[0010]

BEST MODE FOR CARRYING OUT THE INVENTION As an endless conveyor in the present invention, a steel slat conveyor, a steel apron conveyor, and a rubber or resin belt conveyor can be used. However, in the belt conveyor, a glass plate or the like may be mixed in the garbage, which may damage the belt, and it is difficult to attach the bag collecting plate. Further, since the steel apron conveyor is continuously attached with a flat apron by overlapping both ends of the bottom plate adjacent to each other between the two chains with an appropriate gap, the equipment cost is high. Since the steel slat conveyor is provided with steel plate slats in the attachment of the two-row chain, the cost is low and the bag collecting plate can be easily attached to the steel slats. However, in the steel slat conveyor, since a gap is formed between the slat plates in a portion wound around the sprocket, there is a concern that fine foreign matter, for example, a small piece of glass, may enter the inside of the slat conveyor from the gap. Tests have confirmed that such a phenomenon does not actually occur. The reason is that the endless conveyor runs at a considerable speed,
This is because such foreign matter flies forward due to inertial force at the unloading portion, and foreign matter that has entered the gap between the slat plates is also shaken off by centrifugal force. Therefore, it is advisable to use a steel slat conveyor as the endless conveyor.

In the present invention, bag removal is to separate and remove the bag from the refuse, as the name indicates, and the bag piece is pulled to the return side of the endless conveyor by the bag collecting plate. Garbage such as cans and bottles and bag pieces that have been broken in advance by the bag-breaking machine and escaped from the garbage bag are conveyed by an endless conveyor, and when they leave, the garbage flies forward by inertia and draws a parabola. Although it drops to the outlet, the bag piece does not move in the same way due to the large air resistance, and is entangled with the bag collecting plate and introduced to the return side. The reason is that the bag collecting plate provided on the endless conveyor naturally moves at the same speed as the endless conveyor speed during linear movement, but when it is wound around the sprocket, the bag collecting plate is When accelerated rapidly by the difference in radius to the tip of the bag and when returning to linear motion on the return side, the bag is now sharply decelerated by the difference in radius between the sprocket radius and the tip of the bag. . As a result, the bag pieces have a large air resistance, so that a condition arises in which the bag pieces are easily entangled with and separated from the bag collecting plate. In addition, the return side of the endless conveyor is operated with moderate mechanical vibration, so that the bag is easily released.

[0012] A small amount of cans, bottles, and the like may be wrapped in bag pieces in bag pieces and refuse that have been broken in advance by a bag breaking machine on an endless conveyor. As a countermeasure, it is necessary to capture only the bag pieces. In the present invention, a number of curved crochet or crochet-shaped inclined catchers having a restoring force to the original position are juxtaposed in the width direction near the outlet of the endless conveyor, and only bag pieces are captured. The curved crochet-shaped or crochet-shaped inclined catcher that has a restoring force to the original position has a very short crochet portion, so that the bag pieces do not stick to each other and grow, and even if the can is temporarily caught, the next It is easily pushed off when the material is transported.

According to the present invention, while the bag body that has not been completely broken by the bag breaking machine is captured by the crochet-shaped or crochet-shaped inclined catcher hook, refuse is pushed out to the bag collecting plate. The bag pieces cling to the bag collecting plate, and the garbage is separated from the endless conveyor by the inertia force when separated, and then collected at the return side of the endless conveyor. May be insufficient, which may lead to a decrease in bag collection rate. This phenomenon is not only due to the timing, but also because the material of the bag is light and non-sticky and the size of the bag piece is small and it is difficult to stick.
In the present invention, even if the bag is like this,
By arranging a large number of holding rods having a restoring force to the original position at the outlet end of the endless conveyor in the width direction so as to positively entangle the bag collecting plate, and pressing the bag pieces against the endless conveyor surface, The progress of the bag pieces is temporarily stopped, the bag pieces are entangled with the bag collecting plate, and bags can be efficiently collected on the return side of the endless conveyor. When it is necessary to reduce the throughput of the bag removing machine, the speed of the endless conveyor is reduced, but there is naturally a limit to the minimum speed at which bags can be collected. Even if the speed of the endless conveyor is reduced, for example, from 60 m / min to 30 m / min, it is possible to prevent the bag collection rate from decreasing.

The bag pieces and trash such as cans and bottles already broken by the bag-breaking machine, which are put into the hopper on the side of the endless conveyor, are in a loose state. Fall. For this reason, the endless conveyor conveys a large amount of loose objects all at once in a forward direction. If it is only a bag removing machine, there will be no inconvenience, but in the subsequent process, because a sorting conveyor is connected,
Excessive emissions cause overflow there. In order to avoid this, it is necessary to take measures to prevent a large difference in the carry-out amount from the hopper.

[0015] In the present invention, a band plate is laid between the bag collecting plates of the endless conveyor in the hopper, and the rear end is fixed to cover the conveying surface. In this way, by covering the conveying surface of the endless conveyor in the hopper with the band plate, bag pieces and trash fall on the band plate and do not contact the conveying surface of the endless conveyor, and the bag collecting plate is not contacted. Only those pushed by will move forward.
As a result, it has been confirmed by an experiment that the phenomenon that the bag pieces and the garbage are sent to the front at a stretch is avoided, and the transport amount hardly changes with time. In addition, when a steel plate is used for the strip and rubber lining is applied to the upper surface, even when using an endless conveyor made of steel, it is possible to minimize the cracking of the bottle when thrown into the hopper. Become.

[0016]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The details of a shredding bag machine of the present invention will be described below with reference to FIGS. FIG. 1 is a schematic overall side view of a bag removing machine of the present invention using a steel slat conveyor as an endless conveyor, with a part cut away, FIG. 2 is an enlarged sectional view of an impeller unit and an upper slat conveyor of FIG. 4 is a front view of the outlet side of the bag removing machine of the present invention, FIG.
Is an enlarged side view of the curved crochet-shaped inclined catcher and the holding rod on the exit side of the endless conveyor, and FIG. It is an enlarged side view of an inclination catcher and a holding bar.

In FIG. 1 to FIG. 4, reference numeral 1 denotes an endless conveyor consisting of a steel slat conveyor horizontally set on a machine frame 2, and an attachment of two chains 4, 4 wound around sprockets 3a, 3a at both ends. A slat 6 made of a steel plate is provided between the endless conveyor 1 and the endless conveyor 1.
A bag collecting plate 7 is planted on the slat 6 at predetermined intervals in the width direction of the slat 6. Outgoing sprocket 3 of endless conveyor 1
If the chain 10 is hung between the b and the sprocket 9 of the motor 8 with a variable speed reducer, and the motor 8 with a variable speed reducer is driven, the endless conveyor 1 is configured to run.

Reference numeral 11 denotes a hopper provided at the upper portion on the entry side of the endless conveyor 1 for storing bag pieces and refuse which have already been broken and thrown in. The lower portion of the hopper 11 rotates opposite to the shelf for preventing hanging. The impellers 12, 12 are incorporated in parallel to the running direction of the endless conveyor 1, and each impeller 12,
A chain 17 is hung between a sprocket 14 of a rotary shaft 13 of 12 and a sprocket 16 of an electric motor 15 with a variable speed reducer,
If the motor 15 with a variable speed reducer is driven, the impellers 12, 1
2 rotates and cuts out the broken garbage and bag pieces in the hopper 11 onto the endless conveyor 1 and controls the rotation speed of the impellers 12 and 12 by the electric motor 15 with a variable speed reducer to remove the garbage and bag pieces. It is configured so that the amount cut out on the endless conveyor 1 can be controlled.

The end of the hopper 11 on the side of the endless conveyor 1 is provided with a slat 6 of the endless conveyor 1.
A drop prevention plate 19 having a slit 18 at the position of the bag collecting plate 7 planted in the endless conveyor 1 is hung down to near the surface of the endless conveyor 1. A fall prevention plate 20 is vertically provided on the machine frame 2 on both sides of the endless conveyor 1 in the traveling direction of the machine frame 2, and the fall prevention plate 20 is provided with a sliding plate 21 that contacts the surface of the endless conveyor 1. 1 is configured to prevent trash and bag pieces from falling from both sides in the traveling direction.

Further, in the vicinity of the exit of the endless conveyor 1, a large number of curved members are provided with restoring forces to the original position by individual torsion coil springs 23 on a support member 22 provided between the machine frames 2 above the endless conveyor 1. The crochet-shaped inclined catcher 24 is suspended, and the hook 25 of the curved crochet-shaped inclined catcher 24 captures the bag put in the hopper 11 without breaking the bag, and the bag collecting plate 7 completely breaks the bag piece. To escape the contents. Garbage such as cans, bottles and plastic bottles can be stored on the endless conveyor 1
It jumps forward due to the inertial force at the time of departure, and falls into the outlet 26 in a parabola. However, since the airbag has a large air resistance, the airbag does not move in the same manner, and is entangled with the airbag 7 and introduced into the return side.

Further, at the outlet of the endless conveyor 1, there are provided a large number of retainers provided with a restoring force to the original position by individual torsion coil springs 28 on a support member 27 provided between the machine frames 2 above the endless conveyor 1. The rod 29 is vertically installed so as to contact the slat 6 near the vertical of the sprocket 3 a of the endless conveyor 1, and a bag piece which does not stick to the bag collecting plate 7 is temporarily pressed against the slat 6 surface of the endless conveyor 1. The bag pieces are stopped and entangled with the bag collecting plate 7, and the endless conveyor 1 is efficiently used.
It is configured to collect bags on the return side of.

On the endless conveyor 1 below the hopper 11, a band plate 30 having a rear end fixed to the machine frame 2 and having a rubber lining on its surface is laid between the bag collecting plates 7. Transfer surface of the endless conveyor 1
By covering with 0, even if the broken bag pieces and the refuse are thrown into the hopper 11 at the same time, they fall on the strip 30 together, and do not come into contact with the conveying surface of the endless conveyor 1. Both the bag pieces and the refuse are pushed by the bag collecting plate 7 and move forward, so that the phenomenon that the bag pieces and the refuse are sent to the front at a stretch can be avoided. The rubber lining on the surface of the plate 30 suppresses cracking of the bottle to be charged.

In place of the curved crochet-shaped inclined catcher 24, as shown in FIG. 5, a support member 31 provided between the machine frames 2 above the endless conveyor 1 is restored to its original position by individual torsion coil springs 32. It has been confirmed that the same operation and effect as the curved crochet-shaped inclined catcher 24 can be obtained even when a large number of crochet-shaped inclined catchers 33 to which a force is applied are vertically provided.

By removing the bag pieces from the mixture of the bag pieces, such as cans, bottles, and plastics, which are collected, broken by the bag breaking machine, and put into the hopper 11 by the above-described structure. Drives the motor 9 with a variable speed reducer to drive the endless conveyor 1 at a predetermined speed, and then drives the motor 16 with a variable speed reducer to drive the impellers 12, 1
2 is rotated to drop garbage such as cans, bottles, plastics and the like and bag pieces from between the impellers 12, 12 onto the endless conveyor 1. Garbage such as bag pieces, cans, bottles, plastics, etc., which have fallen onto the endless conveyor 1 fall onto the band plate 30, are pushed by the bag collecting plate 7 moving between the band plates 30, and sequentially onto the endless conveyor 1. It is cut out and transported.

Bags which are cut out and conveyed on the endless conveyor 1 and which are not broken into bags such as bags, cans, bottles, plastics, etc. In the case where the bag is included, the bag or the bag piece is captured by the hook portion 25 of the curved crochet-shaped inclined catcher 24, and the bag collecting plate 7 completely breaks the bag body or the bag piece to escape the refuse. Garbage such as cans, bottles, and plastic bottles are then unloaded from the endless conveyor 1, fly forward by inertial force, drop into the discharge port 26 in a parabola. On the other hand, the bag pieces do not perform the same movement because of high air resistance, and when the endless conveyor 1 is wound around the sprocket 3a,
The bag collecting plate 7 is introduced to the return side while sticking to the bag collecting plate 7 which is rapidly accelerated by a difference in radius between the sprocket 3a and the tip of the bag collecting plate 7.

Further, at the outlet of the endless conveyor 1, a large number of pressing rods 29 provided with a restoring force to the original position by the individual torsion coil springs 28 are attached to the nearly vertical slats 6 of the sprocket 3a of the endless conveyor 1. Since the bag pieces are suspended so as to be in contact with each other, the bag pieces that do not stick to the bag collecting plate 7 are pressed against the slat 6 surface of the endless conveyor 1 by the pressing rod 29, and the progress is temporarily stopped. And is efficiently introduced to the return side of the endless conveyor 1.

Accordingly, the bag pieces conveyed by the endless conveyor 1 are entangled with the bag collecting plate 7 and separated from garbage such as cans, bottles, plastic bottles, etc., and introduced into the return side of the endless conveyor 1. When the endless conveyor 1 returns to the linear motion on the return side, the bag pieces introduced into the return side of the endless conveyor 1 are sharply changed due to the difference in radius between the sprocket 3a and the tip of the bag collection board 7 this time. The endless conveyor 1 is operated with moderate mechanical vibration, and the bag is easily released. Therefore, the bag is collected on the return side of the endless conveyor 1. It is separated from the plate 7 and separated.

[0028]

According to the bag removing machine of the first aspect of the present invention, when the broken bag pieces conveyed by the endless conveyor and the trash such as cans, bottles and plastic bottles are wound around the sprocket, Garbage such as bottles and plastic bottles are unloaded and fly forward due to inertial force, draw a parabola and fall to the discharge port, and the bag pieces are rapidly accelerated by the difference in radius between the sprocket radius and the tip of the bag collecting plate. It is entangled with the bag and is separated and introduced to the return side, and separated from trash such as cans, bottles, and plastic bottles.

The bag removing machine according to the second aspect of the present invention is characterized in that a transport surface of an endless conveyor located below a hopper into which refuse such as cans, bottles, plastic bottles, and the like is thrown is provided. A rubber-lined strip is laid on the upper surface of the multi-row with the rear end fixed, so cans, bottles, loose items, etc. that have already been broken and escaped fall onto the endless conveyor and are transported excessively forward. To prevent
Bottles can be prevented from being damaged when they are put into the hopper.

[Brief description of the drawings]

FIG. 1 is a schematic overall side view, partially cut away, of a bag removing machine of the present invention using a steel slat conveyor as an endless conveyor.

FIG. 2 is an enlarged sectional view of an impeller unit and an upper slat conveyor of FIG.

FIG. 3 is a front view of the outlet side of the bag removing machine of the present invention.

FIG. 4 is an enlarged side view of a curved crochet-shaped inclined catcher and a holding bar on the exit side of an endless conveyor.

FIG. 5 is an enlarged side view of a crochet-shaped inclined catcher and a holding bar on the exit side of an endless conveyor in a case where a crochet-shaped inclined catcher is disposed in place of a curved crochet-shaped inclined catcher.

[Description of Signs] 1 Endless conveyor 2 Machine frame 3a, 3b, 9, 14, 16 Sprocket 4, 10, 17 Chain 5 Attachment 6 Slat 7 Bag collecting plate 8, 15 Electric motor with variable reducer 11 Hopper 12 Impeller 13 Rotation Shaft 18 Slit 19, 20 Fall prevention plate 21 Sliding plate 22, 27, 31 Support member 23, 28, 32 Torsion coil spring 24 Curved crochet-shaped inclined catcher 25 Key portion 26 Discharge port 29 Presser bar 30 Strip 33 Crochet-shaped inclined catcher

Claims (2)

[Claims] 1. An endless conveyor having a plurality of bag collecting plates mounted on a conveying surface, and a hopper provided on an input side of a machine frame accommodating the endless conveyor, for charging a mixture of broken bag pieces and refuse. , A number of curved crochet or crochet shapes having a restoring force to the original position hung on an upper support member near the endless conveyor outlet, and an outlet for waste and an inlet for bag collection pieces provided at the outlet of the endless conveyor Includes an inclined catcher and a number of holding rods having a restoring force to the original position suspended from the support member above the endless conveyor outlet, and when the bag is transported with the bag incompletely broken,
The envelope of the bag is captured by a curved crochet or crochet-shaped inclined catcher, the contents are completely escaped by the bag collecting plate, and the bag pieces whose contents have been completely escaped are pressed against the endless conveyor transport surface with the holding rod. A bag removing machine characterized in that bag collection by a bag collecting plate is efficiently performed. 2. A transfer surface of an endless conveyor located below a hopper for charging broken bag pieces and refuse,
A rubber-lined band plate on the upper surface of the multi-row with the rear end fixed is laid between the bag collecting plates to prevent garbage from being transported excessively forward, The bag removing machine according to claim 1, wherein damage to bottles is suppressed.