JPH10165832A - Bag tearing device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To surely tear trash bags in which empty cans or the like are collected. SOLUTION: In this device, a bag tearing chamber 4 for tearing trash bags is arranged under a feeding hopper 1 into which trash bags wherein empty cans or the like are collected are fed, and in the bag tearing chamber 4, a rotary blade 5 having a lot of blade bodies 7 provided projectingly on the outer peripheral surface of a rotary drum 6 is arranged. And a trash bag path 8 for about concentrically circularly passing trash bags along the semiperipheral surface of the rotary blade 5 is formed, and in the trash bag path 8, plural oscillating blades 9 for pressing and energizing trash bags at prescribed pressure toward the rotary blade 5 are provided projectingly along the path. In this way, trash bags fed into the bag breaking chamber 4 are pushed into the narrow trash bag path 8 by the rotary blade 5, and while they are caught in the oscillating blade 9 one by one, they fall down to a discharge part, and during that time, they are torn by the rotary blades 5 and the oscillating blade 9.

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 for cutting a garbage bag from which empty cans and the like are collected.

[0002]

2. Description of the Related Art In recent years, empty cans of soft drinks and the like have been brought into a sorting plant from a vending machine, a store, and a household in a garbage bag such as vinyl, and separated and collected so that they can be reused at the sorting plant. It has become.

[0003] In a sorting plant, a garbage bag brought in is cut by a bag breaking device to separate the garbage bag from the empty cans and the like.
The bag breaking device is disclosed in Japanese Patent Application Laid-Open No. 6-255705.
As shown in the publication, a rotary having blades protruding radially is disposed in a bag-breaking chamber below the input hopper, and a rotatable rotor is provided.
While scraping the garbage bag with the tally blade, it scrapes out the garbage bag to the hopper outlet, and presses and biases the movable plate having the blade body near the hopper outlet to form a narrow outlet passage for the garbage bag, and passes through the passage. There is one in which a trash bag is cut between a rotary blade and a movable plate.

[0004]

However, in the above-described conventional bag-breaking apparatus, the bag is broken by a blade that is pressed and urged on one side of the narrow passage of the outlet of the hopper and on the side opposite to the rotary blade. Therefore, if a garbage bag slips through this portion, the garbage bag is sent to the next step without being broken. If the garbage bags proceed to the next step without being broken, the sorting process will be hindered.

[0005] In view of the above, it is an object of the present invention to provide a bag breaking device capable of reliably breaking a garbage bag from which empty cans and the like have been collected.

[0006]

In order to solve the above-mentioned problems, the present invention provides a bag-breaking chamber for breaking a garbage bag below a charging hopper into which a garbage bag having collected empty cans or the like is charged. In the bag-breaking chamber, a rotary blade having a number of blades protruding from the outer peripheral surface of the rotary drum is provided, and a garbage bag is passed substantially concentrically along a half-peripheral surface of the rotary blade. Form a passage,
In the trash bag passage, a plurality of swinging blades that press and urge at a predetermined pressure toward the rotary blade are provided so as to protrude at predetermined intervals along the passage,
The oscillating blade is configured to retreat when a pressure equal to or higher than a predetermined pressure is applied.

[0007]

According to the bag breaking device of the present invention, the garbage bag dropped from the charging hopper into the bag breaking chamber is caught by the rotary blade having a blade body projecting from the outer peripheral surface of the rotary drum. To the trash bag passage formed along the outer peripheral surface of the garbage bag. The trash bag guided to the trash bag passage descends down the trash bag passage while being cut by the rotating blades and the plurality of swinging blades one after another. At this time, when an abnormal pressure exceeding a predetermined pressure is applied to the oscillating blade, the oscillating blade retreats to avoid breakage of the device and to smoothly lower the trash bag. In this way, a dust bag passage is formed to pass the dust bag substantially concentrically along the half-peripheral surface of the rotary blade, and a rocking blade for cutting the dust bag is provided along the passage on the side opposite to the rotary blade of the passage. Since a plurality of bases are protruded at predetermined intervals, even if the garbage bag slides through the preceding swing blade, it can be reliably cleaved by being caught by any of the later swing blades.

[0008]

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

In the drawing, reference numeral 1 denotes a charging hopper for charging a garbage bag in which empty cans or the like are packed in a bag of vinyl or the like. The charging hopper 2 is provided at an upper portion, and the payout port 3 is provided at a lower portion. A bag-breaking chamber 4 for breaking garbage bags is disposed below the payout port 3 of the input hopper 1, and a rotary blade 5 for cutting garbage bags is provided in the bag-breaking chamber 4.
Is arranged.

The rotary blade 5 has a plurality of blades 7 each of which has a pointed tip on the outer peripheral surface of a rotary drum 6 rotated by a motor (not shown), radially and along the axis of the rotary drum 6 at appropriate intervals. Have been established.

A narrow garbage bag passage 8 is formed in the bag-breaking chamber 4 so as to pass the garbage bag substantially concentrically along the half circumferential surface of the rotary blade 5. It is guided to the side of the use passage 8 and is lowered along the passage.

A plurality of oscillating blades 9 for cutting the garbage bag are provided at appropriate intervals on the outer peripheral side of the trash bag passage 8 along the passage, and are also provided at appropriate intervals in the axial direction. I have. The oscillating blade 9 pivotally mounts a oscillating plate 11 having a blade body 10 on a shaft body 12 so as to be swingable, and pivotally mounts a piston rod 14 of a cylinder 13 fixed to a wall surface of the bag breaking chamber 4. The piston rod 14 is always extended at a predetermined pressure to cause the blade body 10 to protrude into the trash bag passage 8, and the trash bag descending in the trash bag passage 8 is hooked and cut. I can do it. Further, if a load more than a predetermined value is applied to the swing blade 9, the load appropriately reduces the piston rod 14 and retreats the swing blade 9, thereby avoiding damage and clogging of the device. In addition, the oscillating blade 9 is provided with the piston rod 1 when an abnormal load exceeding a predetermined level is applied.
4 can be forcibly reduced.

At the payout port 3 of the input hopper 1, there is disposed a scraper 15 for receiving the dust bag and removing the dust bag entangled with the rotary blade 5. The scraper 15 is a blade of the rotary blade 5. The portion through which 7 passes is cut out to prevent contact.

A discharge port 16 for discharging torn garbage bags and empty cans of the contents thereof is provided at a lower portion of the bag breaking chamber 4, and an inspection port 18 having an opening / closing lid 17 is provided at a side portion. .

In order to break a garbage bag from which empty cans and the like have been collected, a motor is driven to rotate the rotary blade 5 of the bag breaking chamber 4, and air is supplied to the cylinder 13 to cause the piston rod to break. 14 to extend the oscillating blade 9 into the trash bag passage 8.
Protrude inside.

When a garbage bag is thrown into the hopper 1, the garbage bag falls to the payout port 3 of the hopper 1, is caught by the rotating rotary blade 5, and is guided to the trash bag passage 8 side. The trash bag guided to the trash bag passage 8 is
It is cut off while descending in the trash bag passage 8 while being sandwiched between the oscillating blade 9 and the oscillating blade 9. Since a plurality of oscillating blades 9 for hooking the garbage bag are arranged along the trash bag passage 8, even if the garbage bag slips through the preceding oscillating blade 9, any one of the oscillating blades 9 in the subsequent stage. It is cleaved and cleaved.

When a load exceeding a predetermined level is applied to the oscillating blade 9, the load appropriately reduces the piston rod 14 and retreats the oscillating blade 9, thereby avoiding damage and clogging of the apparatus, and reducing the amount of dust. And discharged from the discharge port 16. Further, the trash bag caught on the rotary blade 5 is removed by the scraper 15.

As described above, the trash bag is pushed into the narrow trash bag passage 8 formed along the half circumferential surface of the rotary blade 5 by the rotary blade 5 and proceeds to the discharge portion while being sequentially caught by the swing blade 9. Therefore, if an appropriate number of oscillating blades 9 are arranged along the passage, the dust bag is caught by any one of the oscillating blades 9 and reliably torn.

[0019]

As described above, in the bag breaking apparatus of the present invention, a bag breaking chamber for breaking the garbage bags is disposed below the input hopper into which the garbage bags from which the empty cans and the like are collected are placed. A garbage bag passage in which a rotating blade having a number of blades projecting from an outer peripheral surface of a rotating drum is disposed in the bag breaking chamber, and a garbage bag is passed substantially concentrically along a half circumferential surface of the rotating blade. The trash bag passage is provided with a plurality of swinging blades that press and urge at a predetermined pressure toward the rotary blade at predetermined intervals along the passage, and the swinging blade has a pressure equal to or higher than a predetermined pressure. When the garbage bag passes through the garbage bag passage in the bag-breaking chamber, the garbage bag slides back and forth between the rotary blade and the oscillating blade. The oscillating blade can be securely cleaved by being caught.

[Brief description of the drawings]

FIG. 1 is a longitudinal sectional front view of a bag breaking device of the present invention.

[Description of sign]

DESCRIPTION OF SYMBOLS 1 ... Input hopper 4 ... Bag breaking room 5 ... Rotary blade 6 ... Rotary drum 7 ... Blade body 8 ... Dust bag passage 9 ... Swing blade 10 ... Blade body 11 ... Swing plate 12 ... Shaft 13 ... Cylinder

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[Procedure amendment]

[Submission date] December 10, 1996

[Procedure amendment 1]

[Document name to be amended] Drawing

[Correction target item name] Fig. 1

[Correction method] Change

[Correction contents]

FIG.

Claims (1)

[Claims] 1. A bag-breaking chamber for breaking a garbage bag is disposed below a charging hopper for charging a garbage bag from which empty cans and the like have been collected. In addition to providing a rotary blade having a protruding body, a trash bag passage for passing the trash bag substantially concentrically along a half circumferential surface of the rotary blade is formed. A plurality of oscillating blades that press and urge with a predetermined pressure toward the base are protruded at predetermined intervals along the path, and the oscillating blades are configured to retreat when a pressure equal to or higher than a predetermined pressure is applied. Bag breaking device.