JPH08238439A - Bag breaking apparatus - Google Patents

Abstract

PURPOSE: To facilitate the automation of bag breaking and bag removing by enabling the breakage of large bags of refuse bags used for recovering vacant cans, etc., and small bags contained in the large bags and making the separation of the refuse bags from vacant cans etc., certain. CONSTITUTION: The first bag breaking machine 18 for cutting large bags of refuse bags is installed in a conveyer 1 for transporting the refuge bags used for recovering vacant cans, etc. A slanted sorting conveyer 30 is placed on the discharge side of the conveyer 1, and the second bag breaking machine 43 for cutting small bags is installed in the sorting conveyer 30. A bag removing conveyer 48 is installed on the discharge side of the sorting conveyer 30. A bag cutting blade 40 is installed standingly on the transportation surface of the sorting conveyer 30, and an exhauster for separating the bags and a hooking tool 58 are attached to the bag removing conveyer 48.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a bag breaking device that cuts a waste bag that collects empty cans and the like, and more particularly to a bag breaking device that can separate the cut bag from the contents.

[0002]

2. Description of the Related Art In recent years, empty cans such as soft drinks have been collected and reused at sorting factories, and empty cans collected from vending machines, retail stores and homes are waste bags such as vinyl bags. The number of cases where they are packed in bags and brought to sorting plants has increased.

Then, the waste bags with empty cans sent to the sorting factory are sent by a belt conveyor to a bag-breaking device equipped with a bag-breaking blade, and the bag-breaking device cuts the dust bags into empty empty cans. The garbage bags are separated and empty cans are collected.

[0004]

However, there are many cases in which empty cans are directly inserted into the garbage bags to be collected. In some cases, the empty cans are once stored in small bags and then used as garbage bags for collection. Many cases are being thrown in, and in such a case, even if a large bag, which is a garbage bag for collection, is torn by some bag-breaking devices, it does not lead to the cutting of even small bags. In a case, a small bag with empty cans may come out from the bag breaking device, and there is room for developing a device for cutting the small bag as a bag breaking device.

Various attempts have been made to automate the separation of empty cans from bags. However, the shape of the waste bag is not stable due to the nature of the material, and the automation rate is low. In many cases, there is room for development in this respect as well.

In view of the above points, the present invention can cut not only a large bag which is a garbage bag for collection but also a small bag mixed therein, and further, the bag and the empty can can be automatically separated. An object is to provide a bag breaking device.

[0007]

SUMMARY OF THE INVENTION In order to achieve the above object, the present invention provides a bag breaking device according to claim 1, which is a conveyor for conveying a garbage bag in which empty cans are collected, and a conveyor for the conveyor. A first bag breaking machine that cuts a large bag disposed on the way, a sorting conveyor that faces the discharge side of the transfer conveyor and is inclined, and a bag that cuts a small bag that is placed on the way of the transportation of the sorting conveyor. It is characterized by being constituted by two bag breaking machines.

Further, the bag breaking apparatus according to a second aspect of the present invention is characterized in that a bag removing conveyor for bag separation is arranged facing the discharge portion of the sorting conveyor and inclined.

A bag breaking device according to a third aspect of the present invention is characterized in that the sorting conveyor is provided with a bag breaking blade.

Further, the bag breaking device according to the present invention is characterized in that a blower device for blowing the bag upward is disposed at the lower end portion of the bag removing conveyor.

A bag breaking device according to a fifth aspect of the present invention is characterized by including a hooking tool for hooking the bag on the bag removing conveyor and lifting the bag.

[0012]

In the bag breaking device according to claim 1 of the present invention,
A large bag, which is a garbage bag in which empty cans are collected by a transport conveyor, is sent to the first bag breaking machine, and the large bag and the small bag containing the empty cans in the large bag are cut by the first bag breaking machine. When the large bags and the small bags inside the large bags were torn through the first bag breaking machine and were discharged from the conveyor to the sorting conveyor, the sorting conveyor was inclined and was torn by the sorting conveyor. When a large bag or a small bag is lifted, empty cans or the like of the contents roll out from the bags and fall below the sorting conveyor by its own weight, and the bag is lifted upward as it is. At this time, if the first pouch breaking machine cannot cut the pouch into small bags, the second pouch breaking machine disposed in the middle of the conveyance of the sorting conveyor further cuts the pouches to discharge the contents. By dropping the bag downward and transporting the bag upward, it is possible to separate empty cans and the like from the bag.

Further, in the bag breaking device according to claim 2,
When sorting with a sorting conveyor, if some of the contents such as empty cans and bags are conveyed together and conveyed upward, the bag removing conveyor facing the sorting conveyor ensures that the bags are separated from the empty cans, etc. It is possible.

Further, in the bag breaking device according to claim 3,
The bag on the sorting conveyor is further cut by a bag breaking blade, and the bag is hooked on the bag breaking blade and conveyed upward so that empty cans and the like can be easily separated downward and the bags can be easily separated upward.

Further, in the bag breaking device according to claim 4,
The bags ejected from the sorting conveyor are blown off toward the upper side of the bag removing conveyor by the air blown from the air blower so that empty cans and the like can be reliably separated from the bags.

Further, in the bag breaking device according to claim 5,
The bag discharged from the sorting conveyor is lifted above the bag removing conveyor by a hook so that the empty can and the like can be reliably separated from the bag.

[0017]

Embodiments of the present invention will be described below with reference to the drawings.

Reference numeral 1 is a conveyor for conveying a garbage bag in which empty cans and the like are collected. A conveyor sprocket 4 is supported at one end of a conveyor frame 3 supported by legs 2 slightly inclined and a tail side is provided at the other end. Attach the sprocket 5 to the shafts 6 and 7, respectively, on the left and right sides at a predetermined interval,
The shaft body 6 of the drive side sprocket 4 is rotatably mounted on a bearing 8 and the shaft body 7 of the tail side sprocket 5 is rotatably mounted by a take-up unit 9.

A chain 10 is wound around each of the pair of drive side sprocket 4 and tail side sprocket 5, and a drive motor 11 is provided on the drive side of the conveyor frame 3.
The sprocket 12 and the sprocket 13 attached to the shaft 6 are connected by a chain 14 to drive the motor 11
The rotation of the chain 10 causes the chain 10 to rotate.

A plurality of connecting members 15 are arranged between the pair of right and left chains 10 along the rotation direction of the chain 10 at predetermined intervals, and the connecting members 15 have small pieces in the connecting direction of the connecting members. A plurality of support pieces 16 made of plate material are erected at predetermined intervals. The support piece 16 forms a carrying surface for supporting the dust bag from below when the carrying conveyor 1 carries the dust bag.

Reference numeral 17 designates a trash bag storage hopper disposed on the conveyor 1 for temporarily storing the trash bags to be crushed and opening the lower part of the hopper to the conveyor surface of the conveyor 1 to convey it. The garbage bags can be pulled out one by one with the driving of.

Reference numeral 18 denotes a first bag-breaking machine disposed on a support plate 19, and a plurality of circular blades 20 each having a protruding bag-breaking blade for cutting a dust bag on its circumference are provided on a shaft body 21. The support plate 1 is arranged at intervals, and both ends of the shaft 21 are supported by bearings 22.
The circular blade 20 is attached to the conveyor 9 so as to be rotatable, and the bag-breaking blade of the circular blade 20 faces the conveying surface of the conveyor 1.

Then, the sprocket 23 attached to the shaft 21 and the sprocket 25 of the drive motor 24 arranged on the support plate 19 are connected by a chain 26 so that the circular blade 20 is rotated by the drive of the drive motor 23. I have to.

Further, one end of the support plate 19 is pivotally attached to a frame 27 disposed on the conveyor frame 3 and the other end is suspended by a cylinder 28 suspended from the upper portion of the frame 27. The gap between the circular blade 20 and the transfer surface of the transfer conveyor 1 can be adjusted while being supported.

Further, the circular blades 20 are attached to the shaft body 21 in an eccentric state so that when the circular blades 20 are rotated, the bag-breaking blades bite into the bag while giving an impact to the bag.

A discharge chute 29 for guiding the discharge of the dust bag is arranged on the driving side of the transfer conveyor 1, and a sorting conveyor 30 is arranged so as to face the discharge chute 29 with a predetermined inclination. There is.

A drive side sprocket 31 is attached to the upper end of the inclined sorting conveyor 30 and a pair of left and right tail side sprockets 32 are attached to the shaft bodies 33 and 34, respectively, and the shaft bodies 33 and 34 are attached to the frame 35. Bearing 36,
It is rotatably attached via a shaft 37.

A chain 38 is attached to each of the pair of left and right drive side sprockets 31 and tail side sprockets 32.
And the connecting member 3 between the left and right chains 38.
9 are arranged along the rotation direction of the chain 38 at predetermined intervals, and a large number of sharp blade-breaking blades 40 for slicing or pulling up a dust bag are erected on the connecting member 39 at predetermined intervals. ing.

Further, the drive-side shaft body 33 is connected to a drive motor 41 with a speed reducer, and the drive motor 41 drives the bag breaking blade 40 to move upward from below on the conveying surface side. I have to. Further, the lower portion of the frame 35 is suspended by the cylinder 42, and the tail portion of the frame 35 is moved up and down by the expansion and contraction operation of the cylinder 42.
The inclination angle of the sorting conveyor 30 can be appropriately changed depending on the size of the garbage bag to be sorted and the type of contents.

Reference numeral 43 designates a second bag breaking machine which is arranged so as to face the conveying surface of the sorting conveyor 30 and has a support body 44 on which a sharp bag breaking blade 45 is attached toward the conveying surface. is there. This support 44 is used for the frame 3 of the sorting conveyor 30.
5, one end portion of which is swingably attached to a frame body 46 standing upright, and the other end portion of which is suspended by a cylinder 47.
The distance between the bag breaking blade 45 and the conveying surface can be adjusted by the expansion / contraction operation of 7.

Further, on the discharge side of the sorting conveyor 30, a bag removing conveyor 48 for separating empty cans and garbage bags is arranged with an inclination angle substantially similar to that of the sorting conveyor 30.

The bag removing conveyor 48 has a structure substantially similar to that of the sorting conveyor 30. A driving side sprocket 50 is provided at the upper end of the frame 49, and a pair of tail side sprockets 51 is provided at the lower end thereof in pairs. Shaft 52,
The shafts 52 and 53 are rotatably attached to the frame 49 via bearings 54 and 55.

A chain 56 is attached to each of the pair of left and right drive side sprockets 50 and tail side sprockets 51.
And the connecting material 5 between the left and right chains 56.
A large number of 7 are arranged at a predetermined interval along the rotation direction of the chain 56, and a plurality of bar-shaped hooks 58 for pulling up the dust bag are provided upright on the connecting member 57 at a predetermined interval.

Further, the drive-side shaft body 52 is connected to a drive motor 59 with a speed reducer so that the hook 58 can be moved upward from the lower side on the conveying surface side by driving the drive motor 59. I have to. Further, the frame 49
The lower part of the
The tail portion of the frame 49 is moved up and down by the expansion and contraction operation of the frame 49 so that the inclination angle of the bag removing conveyor 48 can be appropriately changed depending on the size of the dust bag to be separated and the type of contents.

Reference numeral 61 denotes an air blower for injecting air to the dust bag, which comprises a blower 62 for generating compressed air, an air outlet pipe 63 for injecting air, and an injection nozzle 64 for injecting air. The pipe 63 branches in the middle and is arranged from the lower end portion on the conveying surface side of the bag removing conveyor 48 and the slightly upper end portion on the rear surface side. And each air outlet pipe 6
The jet nozzle 64 is arranged at the tip of the nozzle 3 toward the upper side of the bag removing conveyor 48.

Reference numeral 65 denotes a collecting conveyor for empty cans and the like arranged below the sorting conveyor 30 and the bag removing conveyor 48, and the sorting conveyor 30 and the bag removing conveyor 4 are provided above it.
Collection chutes 66, 67, 68 for discharging and guiding empty cans and the like discharged from 8 are provided. Further, 69 is a bag collecting space for collecting the dust bag finally discharged from the bag removing conveyor 48.

In the present embodiment, the description of the cover body which is arranged on the side of each conveyor to prevent the fall of the conveyed product is omitted, but a predetermined cover body is attached to the frame of each conveyor as needed. And good.

Therefore, in the case of separating and collecting empty cans and the like from the garbage bags collected by the bag breaking apparatus of the present invention, the drive motor 11 of the conveyor belt 1 is driven to rotate the chain 10 and dispose it on the chain 10. The conveying surface formed by the support piece 16 is moved, and the driving motor 24 of the first bag breaking machine 18 is driven to rotate the circular blade 20.

Next, the collected trash bag is stored in the storage hopper 17
When the sheet is loaded into the storage hopper 17, the support piece 16 forming the transport surface of the transport conveyor 1 sequentially pulls out the garbage bags loaded in the storage hopper 17 from the lower opening of the storage hopper 17 and arranges the first bag breaking machine in the front. Send to 18.

In the first bag breaking machine 18, the circular blade 20 is eccentrically rotating, and when the dust bag passes below the circular blade 20, the bag breaking blade of the circular blade 20 gives an impact to the dust bag. While biting into it, I cut the bag.

At this time, if the trash bag is a large bag, there are empty cans that are mixed in the empty cans that are directly loaded and stored in the small bags. Then, when passing through the first bag-breaking machine 18, the small bag together with the large bag is cut into pieces so that empty cans and the like as the contents can flow out from these bags, and the cut garbage bags and empty cans are in front of each other. It is discharged to the sorting conveyor 30.

The sorting conveyor 30 is inclined with a considerable inclination, and empty cans and the like flowing out from the discharged bags are rolled down along the sorting conveyor 30 to collect the chute 6.
It is collected in the collection conveyor 65 via 6. Further, the bag is hooked on the bag breaking blade 40 provided upright on the transfer surface and transferred upward.

Here, the first bag breaking machine 18 may convey the sachets or the like to the sorting conveyor 30 without being sufficiently cut, and in the sorting conveyor, these unbroken bags and insufficiently cut bags are Is further torn by the bag breaking blade 40 while rising on the conveying surface, and the sorting conveyor 3
It is pushed between the bag-breaking blade 45 of the second bag-breaking machine 43 and the bag-breaking blade 40 of the sorting conveyor 30 which are arranged in the middle of the transport surface of No. 0, and the bag is further torn to allow the contents to flow out and flow out. The empty cans and the like are dropped below the sorting conveyor 30. And for garbage bags, the next bag removing conveyor 48
I am sending it to.

The dust bag sent to the bag removing conveyor 48 is blown upward by the air jetted by the jet nozzle 64, and the hooking tool 5 arranged on the transport surface is also used.
It is lifted up by 8 and collected in the bag collecting space 69 in front of the upper end.

At this time, when the dust bag discharged from the upper end portion tries to wrap around the back surface of the bag removing conveyor 48, it is surely blown off toward the bag collecting space 69 by the air jetted from the lower jet nozzle. It will be recovered. In addition, an empty can that is carried along with the garbage bag on the bag removing conveyor 48 without being completely dropped by the sorting conveyor 30 is separated from the empty can by the blowing air or the hook 58.
The empty cans fall along the bag removing conveyor 48 and are collected by the collecting conveyor 65 via the collecting chute 67. Further, when the empty cans also pass through the bag removing conveyor 48, they are designed to drop to a recovery chute 68 below the upper end of the bag removing conveyor 48, and are collected by the recovery conveyor 65 via the recovery chute 68. Of.

Thus, the empty cans and the garbage bags are automatically separated, and the collected empty cans are reused.

[0047]

As described above, in the bag breaking device according to the first aspect of the present invention, the carrying conveyor 1 for carrying the dust bag.
And a first bag breaking machine 18 which cuts a large bag which is a garbage bag,
Sorting conveyor 30 facing the discharge side of the conveyor 1.
And the second bag breaking machine 43 which cuts the small bag arranged in the middle of the conveyance of the sorting conveyor, so that not only the large bag which is a garbage bag but also the small bag inside the large bag can be surely cut and empty cans and the like can be collected. The bag and the bag can be reliably separated.

Further, in the bag breaking apparatus according to the second aspect of the present invention, since the bag removing conveyor 48 is arranged so as to face the discharge portion of the sorting conveyor 30, the empty cans and the like bags are reliably separated. It will be possible to further promote automation of these separations.

Further, in the bag-breaking device according to the third aspect of the present invention, since a large number of bag-breaking blades 40 are provided upright on the conveying surface of the sorting conveyor 30, the trash bag is more reliably cut and cut. It becomes possible to easily carry out the trash bag and more reliably separate the empty can and the trash bag.

Further, in the bag breaking apparatus according to the fourth aspect of the present invention, since the blower device 61 for blowing the bag upward is arranged at the lower end portion of the bag removing conveyor 48, the bag removing conveyor 48.
It will be possible to more reliably separate the garbage bag at.

Further, in the bag breaking apparatus according to the fifth aspect of the invention, since the carrying surface of the bag removing conveyor 48 is provided with a large number of hooks 58, the garbage bag can be more reliably separated in the bag removing conveyor 48. You will be able to do it.

[Brief description of drawings]

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

FIG. 2 is a view as viewed in the direction of arrows AA in FIG. 1;

FIG. 3 is a view as seen in the direction of arrows B-B in FIG.

FIG. 4 is a sectional view taken along the line CC of FIG.

FIG. 5 is a view as seen in the direction of arrows D-D in FIG.

FIG. 6 is a view taken along the line EE in FIG. 1 with a part thereof omitted.

[Description of sign]

DESCRIPTION OF SYMBOLS 1 ... Conveyor 18 ... 1st bag breaking machine 30 ... Sorting conveyor 40 ... Bag breaking blade 43 ... 2nd bag breaking machine 48 ... Bag removing conveyor 58 ... Hooking tool 61 ... Blower

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[Procedure amendment]

[Submission date] March 17, 1995

[Procedure Amendment 1]

[Document name to be corrected] Drawing

[Correction target item name] All drawings

[Correction method] Change

[Correction content]

FIG.

[Figure 4]

[Fig. 2]

[Figure 3]

[Figure 5]

[Figure 6]

Claims (5)

[Claims] 1. A transport conveyor for transporting a garbage bag in which empty cans and the like are collected, a first bag breaking machine for cutting a large bag disposed in the middle of transport of the transport conveyor, and a discharge side of the transport conveyor. And a second bag-breaking machine that cuts the pouches disposed in the middle of conveyance of the sorting conveyor and is inclined. 2. The bag breaking device according to claim 1, further comprising a bag removing conveyor for bag separation, which is facing the discharge portion of the sorting conveyor and is inclined. 3. The bag breaking device according to claim 1, wherein a large number of bag breaking blades are provided upright on the conveying surface of the sorting conveyor. 4. The bag breaking device according to claim 2, wherein a blower for blowing the bag upward is provided at a lower end portion of the bag removing conveyor. 5. The bag breaking device according to claim 2, 3 or 4, further comprising a plurality of hooking devices for hooking and lifting the bag on a conveying surface of the bag removing conveyor.