JPS627450A - Bag breaker - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed Description of the Invention] [Field of Industrial Application] The present invention relates to a bag-breaking machine, and more specifically, a bag-breaking machine that tears garbage bags and the like thrown into it by a weight that swings within a rotating drum. It's about machines.

This is used in the field of processing equipment that removes garbage from plastic bags and the like containing garbage before crushing the garbage, and aims to recycle household garbage that has been packed in bags and collected.

[Prior art]

In order to process household waste, etc., it may be necessary to reduce its volume by applying a crusher. Unlike food waste, such garbage is slightly larger, and moreover, the collection bags often contain reusable items. Recently, in response to requests for the reuse and recycling of waste products, empty bottles and cans are being collected from plastic bags and other garbage bags. For this reason, workers manually tear open the bag with a knife or the like to remove the garbage, and then sort out what can be used from among the garbage.

Since the work of tearing such bags is not easy, it is desired to mechanize the process, and for example, a bag-breaking device for separately collected garbage is proposed in Japanese Patent Application Laid-open No. 147161/1983.

In this case, a large number of protruding blades are attached to the inner surface of a rotating drum that is slightly inclined in the axial direction, and a dam plate that swings in the rotational direction of the drum is supported within the drum.

According to this, the thrown plastic bags are moved in the rotational direction of the drum by the protruding blades, and when they come into contact with the dam plate, they try to stop their movement, so the moving protruding blades do not tear the plastic bags. It will be done. Since the drum is slightly inclined toward the discharge port, the broken up garbage naturally moves and is discharged together with the torn plastic bags.

However, according to such bag-breaking devices, the dam plates are arranged in the axial direction of the drum, so the plastic bags moving in the circumferential direction must be held down by the dam plates many times before they can be broken sufficiently. . Moreover, since the dam plate does not have a cross-sectional shape that extends along the circumferential direction of the rotating drum, the time that the plastic bag is caught between the dam plate and the protruding blades on the inner surface of the rotating drum is shortened, and the bag does not pass through the dam plate. If the bag is moved by crawling, the bag is no longer broken, and the bag is often not crushed enough by the dam plate.

Therefore, there arise problems such as it takes time to tear the bags and a large number of unbroken plastic bags remain in the drum.

[Purpose of the invention]

The present invention has been made in view of the above-mentioned problems, and its purpose is to increase the time of pressing and crushing in the drum in order to avoid tearing plastic bags, etc., and to speed up the process with an extremely simple structure. To provide a bag tearing machine capable of easily and efficiently tearing bags.

[Structure of the invention]

The features of the bag tearing machine of the present invention will be explained with reference to FIG.
A protruding blade 9 is provided inside the rotating drum 2 for moving the bag to be broken 8 in the circumferential direction and breaking the bag, and a weight 1 has a cross-sectional shape that widens along the circumferential direction of the rotating drum 2.
1 is that the rotary drum 2 is swingably supported around a support shaft 10 extending vertically 1ffi.

In the second invention, in addition to the above-described configuration, as shown in FIG. They are installed so that they face each other.

〔Example〕

Hereinafter, the present invention will be explained in detail based on examples thereof.

Figure 2 is an overall sectional view of the bag tearing machine, showing the front and rear rollers IA and I.
The rotating drum 2 rotatably supported at B is closed at its front and rear by a front wall 4 and a rear wall 5, which are erected and fixed to a base 3. Each wall 4.5 has an inlet 4a and an outlet 5a.
is opened, and chutes 4b and 5b are attached. The rotating drum 2 is rotated in the circumferential direction by a driving means (not shown) horizontally or in a downwardly inclined state toward the discharge port 5a, and a spiral blade 6 is attached to the inner circumference thereof. This is provided with a large number of protruding blades 9 for moving the bag to be broken, such as a plastic bag 8 containing garbage 7, in the circumferential direction and breaking the bag, and the interval between adjacent blades 6. It is narrower on the side and wider on the outlet side. In the illustrated example, there are two spirals near a weight 11, which will be described later, so that a plastic bag 8 or the like that will not be torn can be placed on the blade 6.

Incidentally, the garbage 7 that has been broken and taken out and the damaged plastic bag fit into the spiral groove 6a formed between the adjacent blades 6, so that they do not interfere with the breaking of the next plastic bag 8. At the same time, as the rotary drum 2 rotates, they are sequentially moved toward the discharge port 5a.

In any rotating drum 2, as shown in FIG. 1, a support shaft 10 is installed below the central axis 2a and extends through the rotating drum 2, and has a cross-sectional shape that extends along the circumferential direction of the rotating drum 2. A weight 11 having a weight 11 is supported so as to be swingable about its support shaft 10. The support shaft 10 also passes through the front wall 4 and f&wall 5 shown in FIG. 2, and both ends thereof are supported by bearings 12A and 12B provided on the base 3. The weight 11 fixed to the support shaft 10 is heavy, weighing many kilograms depending on the case, and the example shown in FIG. It may also have a polygonal shape. In any case,
The area for pressing and crushing the plastic bag 8 on the blade 6 against the protruding blade 9 is larger in the circumferential direction than the above-mentioned dam plate or the like. Note that if the support shaft 10 is located below the central axis 2a of the rotating drum 2 as in the illustrated example, the distance between the weight 11 and the blade 6 will gradually decrease, and the plastic bag 8 will be It's easier to get into. Also, weight 11
One side 11b is flat because when a hard object other than the plastic bag 8, such as a vacuum cleaner, comes over, the weight 11 swings and the side 11b facing downward and the spiral blade 6 are separated. The blades are sandwiched between the blades and passed through to prevent damage or deformation of the blades. Note that if the weight 11 extends long in the axial direction of the rotating drum 2 as shown in FIG. 2, one weight 11 can press down a plurality of plastic bags 8 at once and tear the bags. Incidentally, in Fig. 1, the reason why the weight 11 is located to the left of the central axis 2a is because the slot 4a for inserting plastic bags 8, etc.
This is because it is open.

According to the embodiment with such a configuration, the plastic bag 8 is easily torn with the protruding blade 9 in the following manner, and the removed garbage 7 is smoothly and without damage to the outlet 5a.
can be moved to.

When the plastic bags 8 containing the garbage 7 are sequentially inputted from the input port 4a, they are transported as the rotating drum rotates 20 times.
It is moved in the circumferential direction by a protruding blade 9 attached to the spiral blade 6. The weight 11 hangs swingably around the support shaft 10 regardless of the rotation of the rotating drum 2, so when the plastic bag 8 reaches there, the weight ill
The weight 11 is sandwiched between the outer circumferential surface 11a of the rotary drum 2 and the spiral blade 6, and the weight 11 slightly rotates in the rotation direction 2A of the rotary drum 2 due to the pressing force. Plastic bag 8 is its weight 1
1, the lower part of the plastic bag 8 is rubbed by the moving protruding blade 9, and the bag is torn.

The garbage 7 is taken out from the torn plastic bag 8 and fits into the spiral groove 6a. Therefore, when the next plastic bag 8 reaches the weight 11, the same operation is repeated, and the garbage 7 is moved along the spiral blade 6 toward the discharge port 5a. The width of the spiral groove 6a is narrowed around the weight 11 because it is necessary to place the plastic bag 8 thereon as described above, but it is widened near the discharge port 5a.
The removal of the drain is done quickly. Note that reusable items such as easily broken empty bottles and empty cans that become scraps are discharged with almost no damage other than rubbing against the arcuate inner surface of the rotating drum 2.

Other garbage is sent to a separate crusher to reduce its volume and, if necessary, is incinerated or otherwise disposed of.

FIG. 4 is a sectional view of the weight 11A according to the second invention, in which a plurality of bag-breaking blades 1 are provided along the circumferential direction of the outer circumferential surface 11a of the above-mentioned rotary drum 2, which has a cross-sectional shape that extends along the circumferential direction.
3 is mounted so as to face the inner circumferential surface of the rotating drum 2. In this example, the cross-sectional shape of the weight 11A is approximately fan-shaped, but in short, the plastic bag 8 inside the rotating drum 2
It is sufficient that a plurality of bag-breaking blades 13 arranged in the circumferential direction are attached so as to move so as to rub the bag. In addition, if the plastic bag 8 is inserted between the weight 11A and the drum inner peripheral surface 2b,
When the weight 11A rotates together with the rotating drum 2, the weight 11A
The distance between A and the inner circumferential surface 2b of the drum becomes thicker (opens) as shown by the imaginary line in FIG. Therefore, the weight 11A begins to be swung back by its own weight, and at this time, the plurality of bag tearing blades 13 arranged in the circumferential direction act to tear the upper part of the plastic bag 8. If the weight 11A is also arranged in the axial direction as shown in Fig. 6, one weight 11A can tear a plurality of plastic bags 8 at once. A rectangular shape as shown in FIG. 4 may be used.

Moreover, it may be attached to the support shaft 10 of the weight 11A in the shape of a counter, but as shown in the figure, the rotating drum 2
It is convenient to tilt it in the direction of rotation 2A so that plastic bags, strings, etc. do not get tangled when swinging back.

According to such an example, the plastic bag 8 is sandwiched between the bag tearing blade 13 on the outer circumferential surface 11a of the weight 11A and the drum inner circumferential surface 2b, and the plastic bag 8 is crushed by the pressing force and crushed. , the weight 11A rotates in the rotation direction 2A of the rotating drum 2. The plastic bag 8 moves along the circumferential direction so as to be lifted by the protruding blade 9, and at the same time, the distance between the bag-breaking blade 13 of the weight 11A, which swings in the same direction, and the drum inner circumferential surface 2b becomes wider. When the pressing force of the plastic bag 8 weakens, the weight 11A is suddenly swung back by its own weight. As a result, the plurality of bag tearing blades 13 lined up on the outer circumferential surface scrape the top of the plastic bag 8 and tear it.

In the former of the two embodiments described above, a spiral blade was provided on the inner circumferential surface of the rotating drum, but if the spiral blade is not provided, the protruding blade described above may be attached directly to the inner circumferential surface of the drum. . The shape of the protruding blade may be, for example, a sharp cone, or a continuous protrusion extending approximately in the longitudinal direction of the rotating drum. Note that if the above-mentioned spiral blade for moving the garbage is not provided, the garbage can be smoothly discharged by installing the rotating drum so as to be inclined in the axial direction.

〔Effect of the invention〕

As can be seen from the detailed description of the embodiments above, the present invention has a protruding blade provided inside a rotating drum, and a weight having a cross-sectional shape that extends along the circumferential direction of the rotating drum is swingably supported. As a result, it takes a long time for the weight to press the plastic bag located between the protruding blade and the protruding blade, which facilitates bag tearing by the protruding blade that moves with the rotation of the drum. As a result, plastic bags and the like can be torn extremely easily and quickly.

In the second invention, a plurality of bag tearing blades are attached along the circumferential direction of the outer peripheral surface of the weight so as to face the inner peripheral surface of the rotating drum, so that the swinging of the bag tearing blades can cause the bag tearing blades to Bags and the like can be torn extremely easily, reliably and quickly.

[Brief explanation of the drawing]

Fig. 1 is a cross-sectional view of the bag tearing machine according to the present invention, Fig. 2 is a longitudinal sectional view thereof, Fig. 3 is a side view of the weight, and Fig. 4 is a side view of the weight according to a different invention. The figure is an explanatory diagram of the operation of a weight having a bag-breaking force, and FIG. 6 is a longitudinal sectional view of the main part. 2. Rotating drum, 8-・Destroyed bag (plastic bag), 9.
- Projection blade, 10 - Support shaft, 11.11A - Weight, 1l
a-outer peripheral surface, 13-bag-breaking blade; Patent applicant Kyokuto Kaihatsu Kogyo Co., Ltd. Agent Patent attorney Katsutoshi Yoshiso (one idiot) Figure 6

Claims (2)

[Claims] (1) A protruding blade for moving the bag to be broken in the circumferential direction and breaking the bag is provided inside the rotating drum, and a weight having a cross-sectional shape that widens along the circumferential direction of the rotating drum is attached to the rotating drum. A bag tearing machine characterized by being swingably supported around a support shaft passing longitudinally through a rotating drum. (2) A protruding blade for moving the bag to be broken in the circumferential direction and breaking the bag is provided inside the rotating drum, and a weight having a cross-sectional shape that expands along the circumferential direction of the rotating drum is attached to the rotating drum. The rotary drum is swingably supported around a support shaft passing longitudinally through the rotary drum, and a plurality of bag-breaking blades are arranged along the circumferential direction of the outer circumferential surface of the weight so as to face the inner circumferential surface of the rotary drum. A bag-breaking machine characterized by being equipped with a bag-breaking machine.