JPS6164349A - 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 thrown garbage bags, etc., by a weighted bag-breaking blade that swings within a rotating drum. Regarding the bag breaking machine. This is used in the field of processing equipment that removes trash from plastic bags or cardboard boxes containing trash before crushing it, and aims to recycle bagged and collected household garbage and other resources.

[Prior art]

In order to dispose of household waste, it may be necessary to reduce its volume by crushing it. Unlike food waste, such garbage is slightly larger, and moreover, the collection bags often contain reusable items. Therefore, recently,
In response to requests for the reuse and recycling of waste products, empty bottles and cans are being collected from garbage bags such as plastic bags and cardboard boxes. Therefore, workers manually tear open the bags to remove the garbage and sort out what is usable 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 having a bag-breaking shape at the lower end is supported so as to swing in the rotational direction of 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, the movement of the plastic bags, etc., is attempted to be stopped. is about to be torn apart.

Since the drum is slightly slanted toward the discharge port, the garbage inside moves naturally and is discharged together with the torn plastic bag. In addition, if a hard object that does not break even if the bag touches the dam plate comes, the dam plate will rotate in the direction of rotation of the drum, and care is taken to prevent damage to the dam plate and its breakable shape. ing.

However, with such bag-breaking devices, empty bottles removed from torn plastic bags often hit the protruding blades repeatedly before reaching the outlet, making it impossible to reuse them. There's a problem. In addition, although the dam plate is equipped with multiple bag-breaking molds, they are arranged in the axial direction of the drum, so the plastic bags moving in the circumferential direction have to hit the dam plate many times. Otherwise, it may not break sufficiently.

Therefore, there are problems in that it takes time to break the bags and that a large number of garbage bags accumulate in the drum.

[Purpose of the invention]

The present invention was created in view of the above-mentioned problems, and its purpose is to tear plastic bags, cardboard boxes, etc. very easily and quickly, and even if there are easily breakable empty bottles etc. among the garbage taken out. , can be ejected without damage,
Another object of the present invention is to provide a bag tearing machine that can prevent large garbage from accumulating after bag tearing if necessary.

[Structure of the invention]

The features of the bag tearing machine of the present invention will be explained with reference to FIGS. 1 and 2. A spiral blade 6 having protruding pawls 9 is attached to the inner periphery of the rotating drum 2. A support shaft 10 passing through the rotating drum 2 is installed further downward, and a weight 12 having a plurality of bag-breaking blades 11 mounted in the circumferential direction of the arcuate outer circumferential surface is swingably supported on this support shaft. That's true.

In addition to the configuration of the invention described above, the second invention includes a plurality of protrusions 16 on the front surface of the weight 12A that generate crushing force with the spiral blade 6 by rotation of the weight. The crushing part 15 having the following characteristics is formed.

In addition to the configuration of the first invention, the third invention provides a structure in which, in addition to the configuration of the first invention, as shown in FIG.
A guide portion 19 is formed that slopes downward toward a direction a (see FIG. 1).

〔Example〕

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

Figure 1 is an overall sectional view of the bag tearing machine, with 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 shoes 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 ds spiral blade 6 is attached to the inner circumference thereof. This is provided with a large number of protruding claws 9 for moving a plastic bag 8 containing garbage 7 in the rotational direction, and the spacing between adjacent blades 6.6 is narrow on the input port side and narrow on the discharge port side. It's getting wider. In the illustrated example, there are two spiral spirals near a weight 12, which will be described later, so that an unbroken plastic bag 8 or the like can rest 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.

As shown in FIG. 2, a support shaft 10 is installed in the rotary drum 2 and extends through the rotary drum 2 below the central axis 2a. A weight 12 to which a plurality of bag-breaking blades 11 are attached is swingably supported.

The support shaft 10 also passes through the front wall 4 and the rear wall 5 shown in FIG.
Supported by 3B. The weight 12 fixed to this support shaft 10 is heavy, weighing hundreds of kilograms depending on the case, and has a substantially fan-shaped cross section in the example shown in FIG. It is sufficient that a plurality of bag tearing blades 11 are attached in the circumferential direction of the outer periphery that rotates so as to scrape the upper part of the bag. Note that since the support shaft 1° is located below the central axis 2a of the rotating drum 2, the plastic bag 8 is inserted between the weight 12 and the blade 6.
When the weight 12 rotates together with the rotating drum 2, the distance between the weight 12 and the blade inner end 6b gradually opens as shown by the imaginary line in FIG. In other words, when the plastic bag 8 rises too high, the contact force with the weight 12 is weakened, and as a result, the weight 12 is swung back forcefully by its own weight, and at this time, the plurality of bag-breaking blades 11 lined up in the circumferential direction are plastic bag 8
It acts by tearing the upper part of the Note that the bag-breaking blade 11 is the first
If the weights 12 are also arranged in the axial direction as shown in the figure, one weight 12 can tear a plurality of plastic bags 8 at once. Further, the shape may be a sharp one or a rectangular shape as shown in the figure. Further, they may be attached radially from the support shaft 1° of the weight 12, but if they are tilted in the rotation direction 2A of the rotating drum 2 as shown in the figure, plastic bags or strings may be attached when swinging back. It's convenient because it doesn't involve anything. By the way, the reason why the weight 12 is located to the left of the central axis 2a in Fig. 2 is because the input port 4 is located to the right.
This is because a is open.

According to the embodiment with such a configuration, the plastic bag 8 can be easily torn by the bag-breaking blade 11 in the following manner, and the removed garbage can be smoothly moved to the outlet without being damaged. I can do it.

When the plastic bags 8 containing the garbage 7 are sequentially inputted from the input port 4a, as the rotating drum 2 rotates, they are
It moves in the circumferential direction by a protruding pawl 9 attached to the spiral blade 6. Since the weight 12 hangs swingably from the support shaft 10 regardless of the rotation of the rotating drum 2,
When the plastic bag 8 reaches there, it is sandwiched between the bag-breaking blade 11 on the outer periphery of the weight 12 and the spiral blade 6.
The contact force causes the weight 12 to rotate in the rotation direction 2A of the rotary drum 2. As the plastic bag 8 moves to be further lifted by the protruding claw 9, when the gap between the bag tearing blade 11 and the spiral blade 6 becomes wider and the contact force weakens, the weight 12 is suddenly swung back by its own weight. . As a result, the plurality of bag tearing blades 11 lined up on the outer peripheral surface rub against the top of the plastic bag 8 and tear it.

Garbage 7 is taken out from the torn plastic bag 8, and they are 'l! ! 'I'm stuck in 1ai6a. Therefore, when the next plastic bag 8 reaches the weight 12, the same operation is repeated. The garbage 7 is moved along the spiral blade 6 toward the discharge port 5a. Around the weight 12, as mentioned above, it is necessary to place the plastic bag 8, so 'JJI'
Although the width of the IM groove 6a is narrow, it is widened at a portion near the discharge port 5a, so that movement for discharge can be performed 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 separately crushed by a crusher to reduce its volume, and if necessary, incinerated or otherwise disposed of.

As mentioned above, if the bag-breaking blade 11 is installed at an angle, the strings tying the plastic bag 8 and the plastic bag itself are prevented from becoming entangled when the weight 12 is swung back. The plastic bag 8 to be thrown in can be broken.

FIG. 4 is a sectional view of the weight 12A in the second invention, where the front side 14 of the weight 12A is attached to the above-mentioned bag-breaking blade 11, that is, the front side when the weight 12A is swung back. A crushing section 15 is formed on the side. here,
As the weight 12A rotates, the inner end 6b of the spiral blade 6
A plurality of protrusions 16 are attached to generate crushing force.

According to such a weight 12A, garbage can be taken out not only from the plastic bag 8, which is easy to tear, but also from a cardboard box, which is not easy to tear. That is, when a cardboard box (not shown) is inserted through the input port 4a, the spiral blade 6
When the weight 12A is moved to the weight 12A by the protruding claw 9 and comes into contact with the front surface of the weight 12A, the weight 12A starts rotating. At this time, since the distance between the crushing part 15 and the inner end 6b of the spiral blade 6 gradually narrows, the cardboard box is crushed by the protrusion 16. However, a certain amount of space is left in place to prevent the empty bottles stored there from being damaged. As a result, the cardboard box is deformed and then easily torn apart by swinging back the weight 12A. Therefore, if the crushing section 15 is provided, the cardboard box 1
7 can also be easily broken.

FIG. 5 is a cross-sectional view of the weight 12B in the third invention, in which the rear surface 18 has a triangular cross section and a discharge port 5 from the input port 4a.
The guide portion 1 whose back surface 19a is sloped downward toward a
9 was formed.

According to this, even if a relatively large piece of garbage may accumulate on the rear surface of the weight 12B, it can be moved toward the discharge port 5a. That is, among the garbage taken out from the plastic bag, there are items such as cans and vacuum cleaners that do not fit into the spiral groove 6a.

Ordinary garbage is moved by a spiral blade 6, but such garbage is still moved by a weight 12B.
It stays at the rear of the plastic bag 8 and prevents the next plastic bag 8 from being torn.

However, because of the guide portion 19, the vacuum cleaner or the like is moved by its own weight toward the outlet 5a along the slope of the back surface 19a. When they reach the wide helical groove of the helical blade 6, they are moved by the helical blade 6 and discharged from the outlet 5a in the same manner as described above.

〔Effect of the invention〕

As can be seen from the detailed description of the embodiments above, the present invention is characterized in that a spiral blade having protruding claws is attached to the inner periphery of a horizontally installed rotating drum, and is installed below the central axis of the rotating drum. A weight with a plurality of bag-breaking blades attached to the circumferential direction of the circular arc-shaped outer circumferential surface is swingably supported on the support shaft, so it can tear plastic bags extremely easily and quickly, and can also tear the removed garbage. Even if there is a fragile empty bottle inside, it can be removed without causing damage.

In the second invention, in addition to the effects of the above-described invention, a crushing portion having a plurality of protrusions that generates crushing force with a spiral blade by rotation of the weight is formed on the front surface of the weight. This makes it possible to quickly tear down not only plastic bags but also cardboard boxes. Furthermore, in the third aspect of the invention, since the guide portion is formed on the rear surface of the weight and slopes downward from the input port to the discharge port, it is possible to prevent large garbage from accumulating after the bag is broken. It is possible to sustain the breakage of plastic bags and the like that are sequentially thrown in.

[Brief explanation of the drawing]

FIG. 1 is a longitudinal sectional view of the bag tearing machine according to the present invention, FIG. 2 is a sectional view taken along the line ■-■ in FIG. 1, FIG. 3 is a sectional view of the weight according to the first invention, and FIG. FIG. 5 is a cross-sectional view of the weight according to the second invention, and FIG. 5 is a cross-sectional view of the weight according to the third invention. 2-rotating drum, 2a...-center shaft, 4a-inlet, 5
a-Exhaust port, 6-! l spiral blade, 7--dust, 8-
Plastic bag, 9-Protruding claw, 10...-Support shaft, 11-Bag tearing blade, 12.12A, 12B--Weight 15-Crushing part, 1
6-Protrusion, 19-Guide portion.

Claims (3)

[Claims] (1) A spiral blade having protruding claws is attached to the inner periphery of the rotating drum, and a support shaft passing through the rotating drum is installed below the central axis of the rotating drum. A bag tearing machine characterized in that a weight having a plurality of bag tearing blades attached in the circumferential direction is swingably supported. (2) A spiral blade having protruding claws is attached to the inner periphery of the rotating drum, a support shaft passing through the rotating drum is installed below the central axis of the rotating drum, and a circular arc-shaped outer peripheral surface is attached to the support shaft. A crusher in which a weight having a plurality of bag-breaking blades attached in the circumferential direction is swingably supported, and has a plurality of protrusions on the front surface of the weight that generate crushing force with the spiral blades as the weight rotates. A bag tearing machine characterized in that a part is formed. (3) A spiral blade having protruding claws is attached to the inner periphery of the rotating drum, a support shaft passing through the rotating drum is installed below the central axis of the rotating drum, and a circular arc-shaped outer peripheral surface is attached to the support shaft. A weight with a plurality of bag-breaking blades attached in the circumferential direction is swingably supported, and a guide portion is formed on the rear surface of the weight, sloping downward from the input port to the discharge port. Bag breaking machine.