JP2002186872A - Bag tearing apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent a rubbish bag after tearing or rubbish from winding round an edge tool. SOLUTION: A bag tearing apparatus is equipped with a pair of bag tearing screws 4a and 4b, which have spiral screw blades 5a and 5b provided to the outer peripheries thereof, provided to the inner lower part of a charging hopper 2, which is formed so as to become gradually narrow toward a lower discharge port, in a freely rotatable manner and a drive means for cyclically rotating a pair of the bag trearing screws 4a and 4b forwardly and reversely in mutually opposite directions. A discharge window 13, of which the opening area is adjustable, is provided to the side wall of the charging hopper 2 and, if necessary, a rubbish bag after tearing or rubbish can be also discharged from the discharge window 13.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a bag-breaking apparatus used for breaking garbage bags containing garbage discharged from ordinary households or other suitable places, for example, in garbage disposal sites. .

[0002]

2. Description of the Related Art Most of garbage discharged from general households and other appropriate places is stored in a garbage bag made of synthetic resin such as vinyl and discarded. It is separated into combustible waste, resource waste, and non-burnable waste. In order to separate the garbage stored in the garbage bag into combustible garbage, resource garbage, non-combustible garbage, etc., it is necessary to break the garbage bag and take out the garbage from the garbage bag.

[0003] By the way, since it is not easy to break a garbage bag containing garbage, a bag breaking device which is mechanized is used.

[0004] The conventional bag breaking device has a plurality of blades on its outer periphery at a lower portion in a charging hopper which is gradually narrowed toward a lower discharge port, and the opposite side moves downward from above. A pair of rotating drum-type blades are arranged in parallel with a gap enough to compress the garbage bag containing the garbage, and the garbage bag put in the input hopper passes between the pair of drum-type blades. It is configured to break the bag.

[0005]

By the way, in the above-described bag breaking device, the garbage bag and the refuse after the bag break are wrapped around the cutting tool, and the wrapping bag and the refuse after the wrapping bag break the cutting tool. There is a problem that bag characteristics are inhibited.

SUMMARY OF THE INVENTION The present invention has been made in view of the above-described problems, and has as its object to provide a bag-breaking device capable of preventing a garbage bag or dust from being wound around a blade.

[0007]

According to the present invention, in order to achieve the above object, the present invention is provided rotatably at a lower portion in a charging hopper formed gradually narrower toward a lower outlet.
A pair of bag breaking screws, which are provided in parallel at predetermined intervals and have a helical screw blade on the outer periphery, and driving means for periodically rotating the pair of bag breaking screws in forward and reverse directions in mutually opposite directions are provided. It is characterized by having done.

[0008] Further, a discharge window whose opening area is adjustable is provided on a side wall of the charging hopper, so that the garbage bag and the refuse after the bag breaking can be discharged from the discharge window as needed. I do.

[0009]

DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to FIGS.

FIG. 1 is a plan view of a bag breaking device according to an embodiment of the present invention, and FIGS. 2 and 3 are a front view and a side view of the same.

1 to 3, reference numeral 1 denotes a frame frame, and 2 denotes a loading hopper provided integrally with the frame 1. The front and rear walls of the hopper are inclined in an inverted C-shape so that a lower discharge frame is formed. It is formed narrower toward the exit. Reference numeral 3 denotes a discharge chute provided continuously at the lower discharge port of the input hopper 2, and its left and right walls are inclined in an inverted C shape so as to be narrower toward the lower discharge port.

Reference numerals 4a and 4b denote a pair of bag breaking screws rotatably provided at a lower portion in the loading hopper 2, and are disposed in parallel with a gap enough to compress the garbage bags containing the garbage, and are disposed in the center in the longitudinal direction. Screw blades 5a and 5b formed in a reverse rotation with respect to the part are provided on the outer periphery. The two bag breaking screws 4a and 4b are connected to each other by gears 6a and 6b having the same number of teeth meshing with each other on the outside of the loading hopper 2, and are rotated in opposite directions by the gears 6a and 6b.

Reference numeral 7 denotes a sprocket provided at one end of one of the bag breaking screws 4a. Reference numeral 8 denotes a sprocket provided on a rotating shaft of a reversible rotary motor 9 provided on the gantry frame 1.
Numeral 0 denotes a chain which is endlessly wrapped between the two sprockets 7 and 8, and transmits the rotational force of the motor 9 to the bag breaking screw 4a via the sprocket 7, the chain 10 and the sprocket 8, thereby causing the bag breaking screws 4a and 4b to rotate. They can be rotated in opposite directions. The motor 9 rotates forward and backward periodically, and according to the forward and reverse rotations, the bag breaking screw 4a,
4b can be rotated forward and backward periodically. In this case, the rotation time of the forward rotation (rotation in the direction in which the opposing side moves from upper to lower) is set longer than the rotation time of the reverse rotation (rotation in the direction in which the opposing side moves from upper to lower). Specifically, the forward rotation is 15 seconds, and the reverse rotation is 10 seconds.

Reference numeral 11 denotes a baffle plate having an inverted V-shaped cross section for sorting the garbage bags put into the charging hopper 2 and dropping them on the bag breaking screws 4a, 4b. The bag breaking screws 4a and 4b are provided orthogonally above the center in the direction.

Reference numeral 12 denotes a transport conveyor for transporting broken garbage bags and refuse, and is provided below the lower discharge port of the discharge chute 3.

Reference numeral 13 denotes discharge windows provided on the front and rear walls of the input hopper 2, respectively. Reference numeral 14 denotes an opening / closing plate for opening and closing the discharge window 13. The open / close plate is provided along slide rails 15 provided on the front and rear walls of the input hopper 2. The discharge window 13 can be adjusted by sliding vertically along the slide rails 15, 15.

Next, the operation of the bag breaking device thus constructed according to the present invention will be described.

First, when a garbage bag containing garbage is thrown into the loading hopper 2, the garbage bag is sorted by the baffle plate 11 and falls on the bag breaking screws 4a, 4b. At this time, the bag-breaking screws 4a and 4b are rotationally driven by the reversible rotating motor 9 so as to periodically repeat forward and reverse rotations. It is fed between the bag breaking screws 4a and 4b by the rotation drive of the bag screws 4a and 4b, and is broken by being compressed while being sandwiched by the screw blades 5a and 5b when passing between the bag breaking screws 4a and 4b. The bag is bagged, and the garbage contained is released separately. At this time, since the garbage bag containing the garbage is compressed and broken while being sandwiched by the screw blades 5a, 5b of the bag-breaking screws 4a, 4b, the bulky garbage such as a PET bottle housed in the garbage bag. Is crushed and reduced in volume. Garbage bags and garbage that are broken like this
The discharge chute 3 slides down, falls onto the conveyor 12, is placed on the conveyor 12, and is conveyed to a predetermined position such as a sorting position.

According to the bag-breaking device of the present invention, the bag-breaking screws 4a and 4b for breaking the bag are periodically rotated forward and backward, so that the bag-removed bags and the dust can be removed. Winding around 4a, 4b can be effectively prevented.
That is, when the bag-breaking screws 4a and 4b rotate forward or backward, the garbage bags and the refuse after the bag-breaking are removed.
Even when the bag is wound around 4b, the bag or garbage after the bag breaking, which is wound when the bag breaking screws 4a and 4b rotate in reverse or forward direction, automatically falls off from the bag breaking screws 4a and 4b, and the garbage after bag breaking. Bags and dust do not remain around the bag breaking screws 4a and 4b.

Further, according to the bag breaking device of the present invention, the discharge window 13 which can be opened and closed by the
Is provided, the garbage bag or refuse after the bag breakage can be directly dropped from the discharge window 13 to the transport conveyor 12 and discharged, if necessary. Therefore, since the bag can be broken while the opening area of the discharge window 13 is adjusted by the opening / closing plate 14 according to the amount of dust, the bag breaking operation of the dust bag can be favorably performed.

[0021]

As described above, according to the bag breaking device according to the present invention, the garbage bag and the refuse after the bag breaking are not wound around the bag breaking screw and remain. However, there is an effect that excellent bag breaking performance can be maintained for a long period of time without being hindered by a garbage bag or refuse after bag breaking.

Further, according to the bag breaking device of the present invention, since the bag can be broken while adjusting the discharge amount in accordance with the amount of the waste, the effect of improving the efficiency of the bag breaking operation of the waste bag can be improved. is there.

[Brief description of the drawings]

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

FIG. 2 is a front view of the bag breaking device according to one embodiment of the present invention.

FIG. 3 is a side view of the bag breaking device according to the embodiment of the present invention.

[Explanation of symbols]

 2 Input hopper 3 Discharge chute 4a, 4b Bag breaking screw 5a, 5b Screw blade 6a, 6b Gear 9 Motor (reversible rotation type) 11 Baffle plate 12 Conveyor 13 Discharge window 14 Opening / closing plate

Claims (2)

[Claims] 1. A pair of rotatably provided lower portions in a charging hopper formed gradually narrower toward a lower outlet, and provided in parallel with a predetermined interval, and having a spiral screw blade on the outer periphery. And a drive means for periodically rotating the pair of bag breaking screws forward and reverse in opposite directions. 2. A discharge window whose opening area can be adjusted is provided on a side wall of the input hopper, and a garbage bag or refuse after breaking the bag can be discharged from the discharge window as needed. The bag breaking device according to claim 1,