JPS6222850B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) This invention relates to a bag tearing machine for household garbage bags and the like.

(Prior Art) Conventionally, a bag tearing device has been provided with a moving chain between an inlet and an outlet, and needle bars are rotatably attached to this moving chain at regular intervals. Some bags are weighted and have a bandsaw (saw) installed at the inlet to divide the bags into upper and lower halves (for example, Utility Model Publication No. 50-33409).

Then, a needle bar is used to pierce a bag filled with powder or granular materials, and a band saw is used to divide the bag into two halves, each half being suspended from the needle bar before being sent out. It is something.

(Problem to be solved by the invention) However, such a bag-breaking device can be used to cut bags filled with cement, grain, etc., but cannot be used to break garbage bags that come out of the home. . The so-called garbage that is generally discarded from households includes metal pieces, bottles, plastics, wood, and other vegetable and fruit scraps, and there are many items that are difficult to cut, such as metal pieces. This is because it is

Therefore, the purpose of this invention is to make it possible to quickly mechanically break a large amount of garbage bags in the process of tearing apart garbage bags as a step before sorting waste, thereby increasing work efficiency. This paper aims to propose a bag-breaking machine.

(Means for Solving the Problems) A feature of the present invention is that a plurality of chain belts 5 arranged in parallel are provided with a plurality of movable blades 6 protruding from each other, and a plurality of movable blades 6 are provided between the chain belts. In the gap,
A support body 9 is provided, a fixed blade 10 is provided which can tilt in the direction of movement of the chain belt against the spring force of a spring 13, and a scraper 14 is engaged with the rear turn of the chain belt. It's in a certain place.

(Function) Therefore, the loaded bag falls onto the rotating chain belt 5, the bag is carried by the movable blade 6, and the bag is immediately moved to the fixed blade 10.
As the bag moves, the bag is torn by the movable blade and the fixed blade, and the waste inside the bag begins to fall.

In the bag-breaking action described above, the bag is completely broken by the movable blade 6 and the fixed blade 10 by the time the bag is sent to the end, and all the waste inside the bag is dropped.

Further, the bag itself is carried to the end while being stuck on the movable blade 6, but at this point, the bag stuck on the movable blade 6 is scraped out by the action of the scraper 14 and conveyed on another belt conveyor.

Furthermore, when a bag is torn, for example, metal pieces and bottles are mixed in with the waste, and when these wastes collide with the fixed blade 10 during movement, the fixed blade tilts significantly against the spring force of the spring 13. Prevents fixed blade damage.

(Embodiments) Hereinafter, embodiments of the bag tearing machine of the present invention shown in the drawings will be described in detail.

In Figures 1 and 2, front and rear sprocket 1
..., 2... are supported by driving shafts 3, 4 at a constant interval, and a chain belt 5... is wound around each sprocket, and this chain belt is arranged as shown in the third figure. are arranged in parallel with each other. As shown in the second figure, a plurality of sharp-pointed movable blades 6 are fixed to each chain belt 5 facing outward at regular intervals, and
This movable blade has a shape slightly inclined in the direction of movement. Connecting rods 7 and 8 are attached to the inside of each chain belt 5 in parallel with the drive shafts 3 and 4, and the connecting rods are supported in parallel with this chain belt within the gap between each chain belt 5. Rod 9... is attached. On each of the support rods 9, sharp fixed blades 10 projecting upward through the chain belt at regular intervals are rotatably supported by pins 11. Each fixed blade 10... is prevented from rotating forward (to the left in FIG. 2) by a stopper 12 protruding from the support rod 9... in front thereof, and its direction is parallel to the movable blade 6... In addition to keeping the
A tension spring 13 is stretched between the lower end of the fixed blade 10 and the support rod 9 to bring the fixed blade into elastic contact with the stopper 12. As a result, the fixed blade 10 can be rotated forward only in the advancing direction of the chain belt 5 against the spring force of the spring 13. The tip of the fixed blade 10 is the movable blade 6.
It is desirable that the height be the same as or slightly longer as shown in the second figure. A scraper 14 is installed close to the upper surface of the chain belt that is wrapped around the rear sprocket 2.
As shown in the figure, a groove 15 through which the movable blade 6 passes is cut out. Further, below the chain belt 5, first and second
As shown in the figure, an inclined wall plate 16 for receiving falling waste is provided, and a belt conveyor 19 moving in a direction perpendicular to the chain belt is provided at the bottom of the inclined wall plate 16. Note that 20 is a waste storage bag input hopper placed above the chain belt 5 at the starting end;
As shown in the figure, the lower end input port 21 is provided with a revolving door 22 for opening and closing the input port. this door 2
2 rotates around a shaft 23 and closes the input port 21 with its curved upper half. A spring force is applied to the door 21 by a spring 24 so as to keep it open at all times.

Next, the operation of the bag tearing machine of the present invention constructed as described above will be described.

The bags thrown in from the charging hopper 20 fall onto a rotating chain belt 5, and are carried by being thrust into a moving blade 6. The bag immediately hits the fixed blade 10, and as the bag moves, the bag is torn by the moving blade and the fixed blade, and the waste inside the bag begins to fall. Further, when a large amount of bags are loaded into the hopper 20, the majority of the revolving door 22 also rotates against the spring force of the spring 24 as the bags are transferred, so that the revolving door closes the input port 21. . And when all the bags are transferred by chain belt 5,
This revolving door 22 is returned to its original position by a spring 24.

In the bag-breaking action described above, the bag is completely broken by the movable blade 6 and the fixed blade 10 by the time the bag is sent to the end, and all the waste inside the bag is dropped. The waste that has fallen through the chain belt 5 is caught by the wall plate 16, collected on the belt conveyor 17, and sent to the next waste separation process. Further, the bag itself is carried to the end while being stuck in the movable blade 6, but at this point, the bag stuck in the movable blade 6 is scraped out by the action of the scraper 14 and conveyed on another belt conveyor 19. In addition to plastic bags, the waste also includes strings, paper, etc., which pass between the chain belts 5 and get caught by the movable blade 6, but these are not allowed to fall into the scraper 14 in the same way as plastic bags. The waste is collected and sent to a belt conveyor 17.

Furthermore, when a bag is torn, for example, metal pieces and bottles are mixed in with the waste, and when these wastes hit the fixed blade 10 during movement, the fixed blade tilts significantly against the spring force of the tension spring 13. to prevent damage to the fixed blade. In particular, bottles and the like can be crushed when they collide with the fixed blade 10. Further, when a large amount of waste falls onto the chain belt 5 at once, the fixed blade 10 is tilted greatly to protect it from damage.

(Effects of the Invention) As described above, according to the bag breaking machine of the present invention, a bag containing waste can be automatically broken by the movable blade and the fixed blade, and the waste inside the bag can be destroyed. It can be dropped efficiently and quickly, improving work. In addition, even if a piece of metal hits the fixed blade, the fixed blade tilts against the spring force, preventing damage to the fixed blade.Furthermore, bottles and the like can be crushed into small pieces. The effect is truly great.

[Brief explanation of the drawing]

Fig. 1 is an overall external view of the bag tearing machine of the present invention, Fig. 2 is an enlarged side view of the main parts, Fig. 3 is a sectional view taken along the line in Fig. 2, and Fig. 4 is a front view of the scraper. . 1, 2... Sprocket, 5... Chain belt,
6...Movable blade, 9...Support rod, 10...Fixed blade, 13...
Spring, 14...Scraper.

Claims (1)

[Claims] 1. A plurality of chain belts 5 arranged in parallel, a plurality of movable blades 6 protruding from the chain belts, and a blade provided in a gap between the chain belts. a support 9; a fixed blade 1 provided on the support and capable of tilting in the direction of movement of the chain belt against spring force;
0; and a scraper 14 that engages with the rear turn of the chain belt.