JPS6233559A - Bag bursting machine - 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] [Industrial Application Field] The present invention relates to a bag breaking machine, and more specifically, to a process for removing garbage from collected plastic bags and the like before crushing the garbage and recycling the garbage. The present invention relates to a bag tearing machine that is used in the field of equipment and is configured to tear garbage bags and the like that are thrown into it by means of a weight that swings within a rotating drum.

[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. Therefore,
Workers use a knife or other tool to manually tear open the bags and remove the garbage, and then 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 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 moves within the rotating drum 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. In addition, the protruding blades attached to the inner surface of the rotating drum wear out during repeated bag-breaking operations, resulting in problems such as a limited service life and requiring a great deal of effort for repair and maintenance. be.

[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 break plastic bags, etc., thereby creating an extremely simple structure. To provide a bag tearing machine capable of quickly and efficiently tearing bags, and also capable of regenerating or replenishing the joints 111 with protrusions of protruding blades that are consumed in the bag tearing operation.

[Structure of the invention]

The characteristics of the bag tearing machine of the present invention will be explained with reference to the reference numerals cited in FIG. A weight 15 having a wide cross-sectional shape is swingably supported around a support shaft 1G passing vertically through the rotating drum 2, and a plurality of fractures are formed along the circumferential direction of the outer peripheral surface 15a of the weight 15. A bag blade 17 is mounted to face the inner circumferential surface of the rotating drum 2, and the blade 6 is provided with a guide body 10 in the radial direction of the rotating drum 2. A protruding blade 9 that can advance from 2b is inserted.

[For production]

The plastic bag 8 put into the rotating drum 2 is
As the blade rotates, it is moved in the circumferential direction so as to be caught by a large number of protruding blades 9 protruding from the inner circumferential surface 6a of the blade. Due to the plastic bag 8 inserted between the swingable weight 15 and the blade 6, the weight 15 also rotates about the support shaft 16 in the moving direction of the plastic bag 8. Weight 1
When the plastic bag 5 is swung back by its own weight, a large number of bag-breaking blades 17 mounted on a weight 15 having a widened cross-sectional shape tear the plastic bag 8. The torn plastic bag 8 and the weight 15 therein are moved toward the discharge port 5a and discharged from there to the outside of the machine. When the protruding blades 9 are worn through repeated bag-breaking work and the amount of protrusion from the inner peripheral surface 6a of the blade 6 decreases, each protruding blade 9 is pushed into the blade 6 from the outer peripheral surface 2b of the rotating drum 2. It is advanced into the provided guide body 10. When the protruding blade 9 protrudes a desired amount from the inner peripheral surface 6a of the blade 6, the protruding blade 9 is fixed.

It is repeatedly advanced until it becomes worn and unfit for use, thereby extending the service life of the bag tearing machine itself.

〔Example〕

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

Figure 1 is an overall vertical sectional view of the bag tearing machine, showing the front and rear rollers IA,
A rotary drum 2 rotatably supported by an IB 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 5.
a is opened, and chutes 4b and 5b are attached. The rotary 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, for example, connected in a circular ring shape is attached to the inner circumference of the rotary drum 2. .

This is provided with a large number of protruding blades 9 for moving a plastic bag 8 containing garbage 7 in the rotational direction, and the interval between adjacent blades 6.6 is narrow on the input port side and narrow on the discharge port side. It's getting wider.

The protruding blade 9 is a round metal rod with high wear resistance, which
As shown in FIG. 2, the blade 6 is inserted through a cylindrical guide body 10 fixed in the middle thereof. The guide body 10
As shown in FIG. 3, it is equal to the total height of the blade 6 and passes through the rotating drum 2 in the radial direction, and a fixed seat 11 as shown in FIG. It is attached. That is, the protruding blade 9 has a screw 12 carved in its back, and by tightening the screws 13 and 14 from the front and back of the fixing seat 11, the protruding blade 9 is fixed to the rotating drum 2, and the guide body 10 is fixed. The protrusion amount β of the protruding blade 9 from the inner end of the blade 6, that is, the inner circumferential surface 6a of the blade 6 can be selected.

On the other hand, in the illustrated example, the blade 6 has two spirals near a weight 15, which will be described later, so that an unbroken plastic bag 8 or the like can rest on the blade 6. Note that the trash 7 that has been torn and taken out and the plastic bag that has been torn into the helical groove 6b formed between adjacent blades 6 fit into it, so that the tearing of the next plastic bag 8 is not hindered. In addition, as the rotary drum 2 rotates, they are sequentially moved toward the discharge port 5a.

As shown in FIG. 5, within such a rotating drum 2, a support shaft 16 is installed below the central axis 2a and extends vertically through the rotating drum 2. A weight 15 having a wide cross-sectional shape is swingably supported. A plurality of bag-breaking blades 17 are mounted along the circumferential direction of the outer circumferential surface 15a of the weight 15 so as to face the inner circumferential surface of the rotating drum 2, that is, the inner circumferential surface 6a of the blade 6. Note that the support shaft 16 also passes through the front wall 4 and the rear wall 5, not shown in FIG. The weight 15 fixed to this support shaft 16 may weigh as much as 1ffi in some cases. It is an iH product, and in the example shown in Fig. 6, it has an almost fan-shaped cross section), but in short, it has a plurality of bag tearing blades in the circumferential direction of the outer periphery that rotate so as to rub the top of the plastic bag 8 on the blade 6. 17 can be attached.

Since the support shaft 16 mentioned above is located below the central axis 2a of the rotating drum 2, when the plastic bag 8 is inserted between the weight 15 and the blade 6 and the weight 15 rotates together with the rotating drum 2, The distance between the weight 15 and the blade inner peripheral surface 6a is
It gradually opens as shown by the imaginary line in Figure 5. In other words, when the plastic bag 8 rises too high, the contact force with the weight 15 is weakened, so that the weight 15 is swung back forcefully by its own weight, and at this time, the plurality of bag-breaking blades 17 arranged in the circumferential direction are It acts to tear the top of the plastic bag 8.

Incidentally, if the bag-breaking blade 17 is also arranged in the axial direction of the weight 15 as shown in FIG. 1, one weight 15 can break a plurality of plastic bags 8 at once. moreover,
The shape may be a sharp one or a rectangular shape as shown in the figure. Further, it may be attached radially from the support shaft 16 of the weight 15, but if it is tilted in the rotation direction 2Δ of the rotating drum 2 as shown in FIG. It is convenient because there are no strings to get tangled.

The reason why the weight 12 is located to the left of the central axis 2a in FIG. 5 is because the input port 4a is opened to the right of the weight 12.

Next, the operation of the embodiment configured as described above will be explained.

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 blade 9 attached to the spiral blade 6. The weight 15 hangs swingably from the support shaft 16 regardless of the rotation of the rotary drum 2, so when the plastic bag 8 reaches there, it is connected to the bag-breaking blade 17 on the outer periphery of the weight 15 in a spiral shape. The weight 15 is sandwiched between the blades 6 and the contact force causes the weight 15 to move in the rotation direction 2A of the rotating drum 2.
Rotate to. As the plastic bag 8 moves to be further lifted by the protruding blade 9, the gap between the bag-breaking blade 17 and the spiral blade 6 becomes wider, the contact force weakens, and the weight 15 is suddenly and violently swung back due to its own weight. It will be done. the result,
A plurality of bag tearing blades 17 lined up on the outer circumferential surface scrape the top of the plastic bag 8 to tear it.

The garbage 7 is taken out from the torn plastic bag 8 and fits into the spiral groove 6b. Therefore, when the next plastic bag 8 reaches the weight 15, the same operation is repeated. The garbage 7 is moved along the spiral blade 6 toward the discharge port 5a. The width of the spiral groove 6b is narrowed around the weight 15 because it is necessary to place the plastic bag 8 thereon as described above, but it is widened near the discharge port 5a.
Transfer for evacuation occurs quickly. Please note that items that can be reused, such as fragile empty bottles and empty cans that can be scrapped, are
It is ejected with almost no damage as it only rubs 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 17 is installed obliquely (l:Q),
When the weight 15 is swung back, the strings tying the plastic bags 8 and the plastic bags themselves are prevented from becoming entangled, and the plastic bags 8 thrown in one after another can be broken.

Due to repeated bag-breaking work, the protruding blade 9 is worn out and the blade 6 is damaged.
The amount of protrusion from the inner circumferential surface 6a is reduced. , Naso 1-13
．． 14 is loosened, and each protruding blade 9 is pushed from the outer circumferential surface 2b of the rotating drum 2 to advance into the guide 1 body 10 provided on the blade 6. When the protruding blade 9 protrudes from the inner peripheral surface 6a of the blade 6 by a desired amount, the actuators 13, 14 are tightened from both sides of the fixing seat 11 to fix the protruding blade 9. Such operations are repeated until it is worn and almost worn out, and is also replaced with a new prong blade.

In the above-mentioned embodiment, the blades connected in a circular ring shape are spiral, but the blades may also be circular blades in which a large number of ring-shaped plates are arranged in the axial direction. In that case,
The rotating drum may be installed at an angle to facilitate the discharge of dust. In addition, the guide body attached to the blade is not limited to a cylindrical shape, and may be any shape as long as it can guide the protruding blade and support its fall, so its shape is not limited. Therefore, the protruding blade that can move along the guide body can also be selected from various types in addition to those with a round cross section. Further, the position of attachment of the guide body to the blade is different from that described above, and the guide body may be integrated with the side surface of the blade by welding or the like. In the above-described structure, the degree of contact between the blades with the dust moving toward the discharge port is reduced, and wear and tear on the guide body itself and interference with the movement of the dust are reduced.

〔Effect of the invention〕

As can be seen from the detailed description of the embodiments above, the present invention includes a circular ring of blades attached to the inner periphery of a rotating drum,
A weight with a cross-sectional shape extending along the circumferential direction of the drum is swingably supported on a support shaft, and a plurality of bag-breaking blades are attached along the circumferential direction of the outer circumferential surface of the weight. A guide body is provided in the radial direction of the rotating drum, and a protruding blade that can advance from the outer circumferential surface of the rotating drum is inserted into the guide body, so that plastic bags and the like can be broken extremely easily and quickly, and the removed garbage can be easily and quickly destroyed. Even if there is a fragile empty bottle inside, it can be removed without damaging it. Furthermore, the protruding amount of the protruding blades consumed during the bag-breaking operation can be easily adjusted to regenerate or replenish them, thereby making it possible to divide the service life of the bag-breaking machine into sections.

[Brief explanation of drawings]

Fig. 1 is a longitudinal sectional view of the bag tearing machine according to the present invention, Fig. 2 is a sectional view of the guide body and protruding blade attached to the blade, Fig. 3 is a sectional view of the blade including the guide body, and Fig. 4 is a sectional view of the blade including the guide body. A perspective view of the fixing pressure that fixes the protruding blade, Figure 5 is V-V in Figure 1.
A line sectional view, FIG. 6 is a sectional view of one embodiment of the weight. 21. One rotation drum, 2b-outer circumferential surface, 6--blade, 9--projection blade, 10--guide body, 15-weight, 1
5a--outer peripheral surface, 16-support shaft, 17-bag-breaking blade. Patent applicant Kyokuto Kaihatsu Kogyo Co., Ltd. Agent Patent attorney Katsutoshi Yoshiso (one idiot) Figure 2 Figure 4 Figure 5 Figure 6 Figure 5a

Claims (1)

[Claims] (1) A circular ring of blades is attached to the inner circumference of the rotating drum, and a weight having a cross-sectional shape that spreads along the circumferential direction of the rotating drum is centered around a support shaft that runs vertically through the rotating drum. A plurality of bag-breaking blades are mounted along the circumferential direction of the outer circumferential surface of the weight so as to face the inner circumferential surface of the rotating drum, and the blades have a plurality of bag-breaking blades that are attached to the weight in a radial direction of the rotating drum. A bag tearing machine characterized in that a guide body is provided, and a protruding blade that can advance from the outer peripheral surface of a rotating drum is inserted through the guide body.