JP2804892B2 - Bag breaking machine - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a bag breaking machine for breaking a bag for storing solids such as bottles.

[0002]

2. Description of the Related Art Waste discharged from ordinary households is
It is divided into combustibles and non-combustibles, and each is stored in a bag and discharged. At the time of collection and disposal, combustibles can then be dumped in an incinerator and incinerated, but non-combustibles, for example, bottles and cans are mixed, and resources such as bottles are collected. Reuse may be desired. In this case, when using a normal bag-breaking device that simply rotates the cutting blade, a bag or the like is wound around the cutting blade or the rotating body, making continuous operation difficult, and the cutting blade may be damaged by stored solid matter. Therefore, a method is usually adopted in which the bag body is manually broken and the reusable material is taken out.

[0003]

However, this bag breaking method is time-consuming, inefficient and unsanitary. In view of the above, an object of the present invention is to provide a bag breaking machine that automatically breaks a bag.

[0004]

To achieve the above object, a bag breaking machine according to the present invention comprises a rotating cutting blade, a presser plate located opposite to the cutting blade, and a slanted upper part of the cutting blade. A guide plate is provided, the cutting blade comprises a number of cutting blades in the axial direction, and a guide plate provided between the cutting blades, and the guide plate has an arc-shaped portion provided with a central portion concentric with the shaft. The cutting blade protrudes from the guide plate at the arc-shaped portion of the guide plate, the holding plate is urged toward the cutting blade by an elastic machine, and the tip is held at a predetermined interval with the cutting blade. , The supplied bag body is broken by the rotation of the cutting blade, and the holding plate is retracted against the elastic machine by the bag body broken by the rotation of the cutting blade to discharge the bag body downward. Is the gist.

[0005]

[Operation] The supplied bag is broken by the rotating cutting blade, and the bag is supported between the guide plate and the holding plate, and the holding plate is elastically supported. Accordingly, the bag is retracted by the rotating force of the cutting blade against the press, and is discharged downward with the rotation.

[0006]

DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 relates to an embodiment of the present invention, in which a bag-breaking machine 1 is provided with a rotating cutting blade 2, a pressing plate 3 located opposite to the cutting blade 2, and a slanted upper part of the cutting blade. And a guide plate 4. The cutting blade 2 is provided with a mounting plate 6 at an interval on the support shaft 5, and the cutting blade 7 is radially mounted on the mounting plate 6. 8
Denotes a bearing for supporting the support shaft 5, and 9 denotes a driving sprocket wheel. The wheel 9 is connected to an appropriate driving means (not shown).

The cutting blade 2 has a guide plate 10 for covering the same. The guide plate 10 has a central portion formed in a U-shaped cross section by an arc-shaped portion located concentrically with the support shaft 5 and a linear portion extending at both ends thereof in parallel. . The cutting blade 7 has a length protruding from the arc-shaped portion of the guide plate 10, and the guide plate 10 has a plurality of strip-shaped unit guide plates 10 each having a width inserted between the cutting blades.
a and an auxiliary unit guide plate 10b inserted between the frame F and the cutting edge 7 at the end. Also,
It is preferable that the interval between the unit guide plates 10 a is slightly wider than the thickness of the cutting blade 2.

The holding plate 3 includes a fixed plate 11 vertically mounted on the frame F, a movable inclined plate 13 whose upper part is supported by pins 12, and a free end of the movable inclined plate 13 connected to the cutting blade 2.
Bullet 14 and fixed plate 11, movable inclined plate 1
3 and an elastic plate 15 such as a rubber plate covering the front surface. The ammunition machine 14 mainly includes an elevating shaft 17 attached to the movable inclined plate 13 via a connecting plate 16 and a spring 18 for urging the elevating shaft 17 downward. The transition position to the cutting blade 2 side is held at a position which is appropriately spaced from the tip of the cutting blade 7.

The guide plate 4 is provided to be inclined above the cutting blade 2, and preferably has an elastic member 20 such as a rubber plate on its surface.
Is installed. In the drawing, reference numeral 30 denotes a discharge conveyor laid below the cutting blade 2.

The cutting edge 7 of the cutting blade 7 is formed in an arc shape as shown in FIG.

In the above configuration, the bag W to be processed is discarded on the guide plate 4. As a result, the bag W slides on the guide plate, falls, and is cut by the rotating cutting blade 7 of the cutting blade 2. At this time, a solid such as a bottle or a can is stored in the bag body W. Therefore, when the cutting blade 7 projects a large amount from the guide plate 10, the cutting blade 7 hits this solid.
The bag body W rotates the movable inclined plate 13 of the holding plate 3 against the elastic machine 17 and discharges the bag body W onto the discharge conveyor 20 below. That is, the cutting blade 7 is not damaged by solid matter such as a bottle.

Although the illustrated example shows a structure in which the protruding amount of the cutting blade 7 from the guide plate 10 is large, the protruding amount of the cutting blade 7 from the guide plate 10 may be small, and the protruding amount is the same as that of the bag. What is necessary is just to select suitably according to a shape property.

[0013]

As described above, according to the present invention, the supplied bag body is guided by the guide plate, is sandwiched between the movable inclined plate of the holding plate and the cutting blade, is cut by the rotating cutting blade 7, and is cut. With the rotation of 7, the movable inclined plate is pushed out and discharged downward. Therefore, the cutting blade is not likely to be damaged by a solid material such as a bottle, and the bag breaking process can be performed quickly and hygienically. When an elastic plate such as a rubber plate is stretched over the guide plate and the holding plate, the bottles in the bag to be put in are prevented from being damaged, and the broken pieces are prevented from scattering from the broken bag. can do. Further, since the tip of the cutting blade has an arc shape, the cut bag does not become entangled with the cutting edge. Furthermore, since the gap between the cutting blade and the guide plate has been made small,
There is an effect that continuous operation can be performed without a cut bag or the like entering.

[Brief description of the drawings]

FIG. 1 is an overall longitudinal sectional view of a bag breaking machine of the present invention.

FIG. 2 is a longitudinal sectional view taken along line XX in FIG.

FIG. 3 is a left side view in FIG.

FIG. 4 is an enlarged view of a cutting blade.

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 bag-breaking machine 2 cutting blade 3 holding plate 4 guide plate 7 cutting blade 10 guide plate 14 bullet machine 19 cutting edge W bag

Claims (4)

(57) [Claims] 1. A cutting blade which comprises: a rotating cutting blade; a pressing plate positioned opposite to the cutting blade; and a guide plate provided to be inclined above the cutting blade. A guide plate disposed between the cutting blades, wherein the guide plate has a U-shaped cross section in which a central portion is formed in an arc-shaped portion provided concentrically with the shaft, and the cutting blade has a guide in an arc-shaped portion of the guide plate. The presser plate protrudes from the plate, the presser plate is urged toward the cutting blade side by an elastic machine, and the tip is held at a predetermined interval with the cutting blade. A bag breaking machine characterized in that the holding plate is retracted against the ram by the bag body broken by the rotation of the blade and the bag body is discharged downward. 2. The bag breaking machine according to claim 1, wherein an elastic plate is stretched on the holding plate and the guide plate. 3. The bag breaking machine according to claim 1, wherein the cutting edge of the cutting blade has an arc shape. 4. The bag breaking machine according to claim 1, wherein the length of the cutting blade protruding from the guide plate is adjustable.