JPH025142B2 - - Google Patents

Description

[Detailed Description of the Invention] A. Purpose of the Invention (1) Industrial Field of Application The present invention enables garbage storage bags collected from households to be mechanically torn in advance before garbage processing work. This invention relates to a bag-breaking device for garbage storage bags.

(2) Conventional technology For example, garbage and other waste generated from households is generally packed in bags such as plastic bags and disposed of because collection work is easy and hygienic. These bags of garbage are collected by a garbage collection vehicle, but conventionally, the collected bags of garbage are crushed together with the bag by a crusher.

(3) Problems to be solved by the invention However, when bagged garbage is immediately crushed by a crusher as in the past, metals, glass, plastics, etc. mixed in the garbage are also crushed. The subsequent work of sorting the garbage becomes extremely difficult, and the plastic bags that housed the garbage are also broken into pieces, making it difficult to sort them. Therefore, in order to avoid such difficulties, it is necessary to sort waste materials such as metal, glass, and plastic from the bagged garbage before crushing the garbage, and also to remove the plastic bags in which the garbage was stored. To do this, it is necessary to unpack the garbage storage bag, but in the past,
There was no device that could automatically and efficiently open garbage storage bags.

The present invention has been proposed in view of the above, and is a garbage storage bag with a simple structure that allows the garbage storage bag to be opened automatically and efficiently and hygienically within a rotating drum without requiring any manual labor. The purpose of the present invention is to provide a bag breaking device.

B. Structure of the Invention (1) Means for Solving the Problems In order to achieve the above object, the present invention rotatably mounts a hollow rotating drum equipped with an inlet and an outlet on a pedestal. A transfer blade is fixed to the inner circumferential wall of the drum to move the garbage storage bag carried into the drum from the carry-in port toward the carry-out port as the drum rotates, and on the inner edge of the transfer blade, The present invention is characterized in that a cutting blade for tearing the garbage storage bag is provided.

(2) Effect According to the above configuration, when the rotating drum rotates,
The cutting blade on the inner edge of the transfer blade can automatically tear the garbage storage bag, and the transfer blade automatically transports the garbage discharged from the garbage storage bag to the exit side while stirring it. can do.

(3) Embodiment An embodiment of the present invention will be described below with reference to the drawings. A hollow cylindrical rotary drum 1 is mounted on a pedestal 2 and has an inlet 3 at the rear end and an outlet 4 at the front end. It is supported so that it can be tilted forward and rotated. A ring-shaped driven gear 5 is attached to the rear outer periphery of the rotating drum 1, and a driving gear 6 rotatably supported on the frame 2 is meshed with the driven gear 5. Drive motor M on pedestal 2
linked to. A guide ring 7 is attached to the front outer periphery of the rotating drum 1, and the guide ring 7 is supported on a roller 8 rotatably supported on the pedestal 2. Therefore, when the drive motor M is driven, the rotating drum 1 is forced to rotate on the pedestal 2. The loading port 3 of the rotary drum 1 is covered by a rear lid 12 provided with an input chute 9 and an air inlet 10, and this rear lid 12 is supported on a pedestal 2 via a support frame 13. , an air blowing amount adjusting plate 11 is provided at the air blowing port 10.

Behind the rotating drum 1, there is a carry-in conveyor 1.
4 is arranged, and the unloading end 1 of this loading conveyor 14
5 faces above the input port 16 of the input chute 9, and the garbage storage bag A conveyed on the input conveyor 14 is automatically input into the input chute 9. Above the loading conveyor 14 is the conveyor cover 1
covered by 7.

Further, the output port 4 of the rotary drum 1 is covered by a sorting case 18 supported by a pedestal 2, and this sorting case 18 has a garbage receiving part 19 and a metal receiving part 20 extending downward into two branches. , an air exhaust tube 21 extends obliquely upward, and the lower ends of the garbage receiving section 19 and the metal receiving section 20 are open;
Immediately below them are unloading conveyors 22 and 23, respectively.
is installed. Further, a damper 24 is provided within the metal receiving portion 20. The air exhaust tube 21 is connected to a cyclone 25, and this cyclone 25 is connected to a blower 26. Also cyclone 2
A container 35 is provided below 5.

A fixed compression plate 27 having a circular arc shape is attached to the inner surface of the rear lid 12 eccentrically with respect to the center of rotation of the rotating drum 1. The gap with the surface gradually narrows in the direction of rotation of the rotating drum 1. In addition, a plurality of fixed blades 28 are provided on the arcuate convex surface of the fixed compression plate 27 on the rotating drum 1.
is fixed along the axial direction. On the other hand, a plurality of spiral carry-in blades 29 are fixed on the inner peripheral surface of the rear part of the rotary drum 1 at intervals in the circumferential direction, and these carry-in blades 29 face oppositely to the fixed blade 28. ing.

A plurality of spiral transfer blades 30 are installed at intervals in the circumferential direction on the inner circumferential wall of the central portion of the rotating drum 1, and serrated cutting edges 31 are integrally formed on the tip edges of these transfer blades 30. is formed.

Further, on the inner peripheral surface of the front portion of the rotating drum 1, a plurality of spiral delivery blades 33 are installed at intervals in the circumferential direction. A discharge chute 34 is provided on the inner surface of the upper part of the sorting case 18 and extends upward from the front inside the rotary drum 1.
The inlet of this discharge chute 34 faces the inner circumferential surface of the rotating drum 1, and the outlet thereof faces above the inlet of the metal receiving section 20.

On the outside of the front part of the rotating drum 1, there is a fixed magnet 32 in the shape of an arc along a part of the outer peripheral surface of the drum 1.
is provided, and the upper end of this fixed magnet 32 reaches the inlet of the discharge chute 34.

Next, the operation of the embodiment described above will be explained. When the drive motor M is now driven, the rotary drum 1 is rotated clockwise in FIGS. 2 to 4. Also,
The plurality of garbage storage bags A conveyed by the carry-in conveyor 14 are dropped one after another into the input chute 9 from the carry-out end 15. Then, the garbage storage bag A thrown into the rotating drum 1 from the feeding chute 9 is
The rear inner peripheral wall of the drum 1 and the fixed compression plate 27
It is guided through a tapered passage formed between them, and is gradually compressed between them and transferred to the center of the rotating drum 1. During that time, the garbage storage bag A is primarily torn apart by the carry-in blade 29 on the rear inner peripheral surface of the rotary drum 1 and the fixed blade 28 provided on the fixed compression plate 27. According to this primary bag tearing, even if the garbage storage bag A is not completely torn, it will have cuts and scratches here and there, and will be easily caught by the cutting blade 31 during the secondary bag tearing described below.

The primary torn garbage storage bag A reaches the center of the rotating drum 1, where it is hooked onto the cutting blade 31 provided on the inner edge of the transfer blade 30, and is lifted upward to the rotating drum 1. At this time, the garbage storage bag A is subjected to secondary tearing by the cutting blade 31, and the garbage in the bag A is discharged into the rotating drum 1. The above action is repeated in the center of the rotating drum 1, and the garbage discharged from the garbage storage bag A at this time is transferred to the transfer blade 30.
The dust is transferred to the front part of the drum 1 while being stirred by the drum, and in particular, the stirring action can effectively loosen the dust, making it easier to separate and sort metal objects from the dust as described below. can.

The garbage that has reached the front part of the rotary drum 1 is transferred to the outlet 4 of the rotary drum 1 by the carry-out blade 33.

By the way, since the metal objects mixed in the garbage have already been disconnected from the garbage due to the agitation action of the transfer blade 30 on the garbage as described above, they are moved to the inner circumferential wall of the rotating drum 1 by the fixed magnet 32. It is easily drawn and the unloading blade 3
3 lifts it above the rotating drum 1. The lifted metal object reaches above the rotating drum 1, is no longer pulled by the fixed magnet 32, is dropped onto the discharge chute 34, is guided by the chute 34, and is accommodated in the metal receiving section 20. . On the other hand, garbage at the front of the rotating drum 1 is accommodated in a garbage receiving section 19. and metal receiving part 20
The metal objects accommodated in the garbage receiving section 19 are damped by the damper 24 and fall onto the carry-out conveyor 23 to be carried out, and the garbage accommodated in the garbage receiving section 19 falls onto the other carry-out conveyor 22 and is carried out.

Also, while the rotary drum 1 is being driven to rotate, the blower 2
6 drives the rotating drum 1 from the air inlet 10.
Air is blown into the rotary drum 1, and this air flow assists in transporting the dust inside the rotating drum 1, and also guides light materials such as paper and vinyl and dust inside the drum 1 from the air exhaust tube 21 to the cyclone 25. Here, they are stored in a container 35 below the cyclone 25.

C. Effects of the Invention As described above, according to the present invention, the hollow rotating drum 1 is provided with the loading port 3 and the loading port 4 on the pedestal 2.
is rotatably mounted on the inner circumferential wall of the rotating drum 1, and the garbage storage bag A carried into the drum 1 from the carrying-in port 3 is transferred toward the carrying-out port 4 as the drum 1 rotates. A cutting blade 31 for tearing the garbage storage bag A is provided on the inner edge of the transfer blade 30, so that when the rotary drum 1 rotates, the garbage storage bag A is separated from the inner edge of the transfer blade 30. It can be torn by the cutting blade 31, and the garbage discharged from the garbage storage bag A due to the tearing can be conveyed to the outlet 4 side while being stirred by the transfer blade 30. To automatically break bag A without crushing the stored garbage therein, and to effectively loosen the garbage discharged from bag A after the bag breaking process inside the rotating drum 1. is possible,
This can greatly contribute to improving the efficiency of the subsequent work of separating and sorting metal objects from the garbage. Moreover, the transfer blade 30 with the cutting blade 31 is fixedly installed on the inner circumferential wall of the rotary drum 1 and is used both as a bag-breaking means and as a means for agitating and conveying the trash after bag-breaking. This does not significantly reduce the capacity of the drum 1 or unnecessarily complicate the internal structure of the drum 1, thereby ensuring a wide effective capacity of the rotating drum 1 and contributing to the simplification of its structure. It is possible.

[Brief explanation of drawings]

Fig. 1 is a longitudinal sectional side view of the main part of the device of the present invention, Fig. 2 is a sectional view taken along the line of Fig. 1, and Fig. 3 is a sectional view taken from Fig. 1.
The line sectional view, FIG. 4 is a line sectional view taken from FIG. 1. A... Garbage storage bag, 1... Rotating drum, 2... Frame,
3... Carrying inlet, 4... Carrying out outlet, 30... Transfer blade,
31...Cutting blade.

Claims (1)

[Claims] 1 A hollow rotary drum 1 equipped with a carry-in port 3 and a carry-out port 4 is rotatably mounted on a pedestal 2, and the inner peripheral wall of the rotary drum 1 is provided with a hollow drum 1 that is loaded into the drum 1 through the carry-in port 3. Place the garbage storage bag A into the drum 1.
A transfer blade 30 is fixedly installed to transfer toward the outlet 4 as the garbage storage bag A rotates, and a cutting blade 31 for tearing the garbage storage bag A is attached to the inner edge of the transfer blade 30.
A bag-breaking device for garbage storage bags, which is equipped with: