JP3843351B2 - Bag breaker - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a bag breaker disposed above a transport path of a transport means for transporting a waste container and tears the waste container, and more specifically, for example, a PET bottle collected in a bag, Useful plastics such as plastic trays, empty cans such as aluminum cans and steel cans, and useful waste such as empty bottles are removed from the bags for collection and reused. It relates to bag machines.
[0002]
[Prior art]
In recent years, the recycling of useful waste plastics, empty cans, empty bottles, etc. has been promoted. For this reason, these useful wastes are collected separately in bags, and waste storage bags are made into useful waste treatment facilities. It is brought in, where useful waste is taken out of the bag and sorted into useful waste plastics, aluminum cans, steel cans and empty bottles, and each is collected. And in order to take out useful waste from a bag efficiently, the bag breaking apparatus which tears a bag automatically is used.
[0003]
2. Description of the Related Art Conventionally, as a bag-breaking device, a device in which various bag-breaking machines are arranged above a conveying unit that conveys a waste container is known. Examples of bag breakers used in this bag breaker include caterpillar bag breakers, hook-type bag breakers, and shear-type bag breakers described in the “Guidelines for Waste Treatment Facility Structure Guidelines” supervised by the Ministry of Health and Welfare There is a rotary bag breaking machine described in Japanese Patent No. 2842395.
[0004]
The caterpillar type bag breaking machine includes a caterpillar to which a spike for breaking a bag is attached, and a variable speed driving device for driving the caterpillar.
[0005]
The hook-type bag breaking machine is composed of two sets of claws arranged at intervals in the transport direction and a drive device that swings these claws in different directions.
[0006]
The shear type bag breaking machine is composed of two sets of rotary blades arranged at intervals in the transport direction and a drive device that rotates these rotary blades in different directions.
[0007]
The rotary bag breaking machine includes a frame that can move up and down, a plurality of rotary cutters that are rotatably supported by the frame at intervals in the width direction of the transport path, and a drive device that rotates these rotary cutters. Is.
[0008]
[Problems to be solved by the invention]
However, in the conventional bag breaker, in any case, the structure becomes complicated and its weight becomes relatively large, making it difficult to adjust the initial height of the conveying means relative to the conveying path, and the existing conveying device. There is a problem that additional installation is difficult. Further, since a driving device for generating the bag breaking force is required, there is a problem that the cost is increased. Moreover, in the conventional bag breaking machine, the bag breaking rate (ratio of bags to be broken among all the resource garbage containing bags to be transported) is about 60 to 70%. For the purpose of increasing, it is conceivable that two or more bag breakers are arranged side by side along the transport path of the transport means, but in this case, the above-described problems become more prominent.
[0009]
An object of the present invention is to provide a bag breaker that solves the above problems, has a simple structure, can be reduced in weight, and is low in cost.
[0010]
[Means for Solving the Problems and Effects of the Invention]
A bag-breaking machine according to the present invention is a bag-breaking machine that is disposed above a conveying path of a conveying means that conveys a waste-containing bag and breaks the waste-containing bag, and has a plurality of cutters with blade edges facing downward, A cutter row is formed by connecting adjacent ones arranged side by side in the conveyance direction of the conveyance means so as to swing around a horizontal axis perpendicular to the conveyance path of the conveyance means. One end is attached to a frame provided above the conveying path of the conveying means so as to swing around a horizontal axis perpendicular to the conveying path of the conveying means, and a linear support member is attached to the other end of the cutter row. Is attached, and the linear support member is attached to the frame via the tension relaxation means.
[0011]
In the bag breaker of the present invention, a wire, rope, leaf spring, coil spring, chain, or the like is used as the linear support member.
[0012]
According to the bag breaker of the present invention, the height of the cutter blade edge relative to the conveying path can be adjusted by tensioning and relaxing the linear support member by the tension relaxing means. In addition, when the waste storage bags are transported along the transport path of the transport means, the cutters connected to each other swing in a complicated wave, and not only the effect of pressing on the bags by their own weight but also the adjacent cutters. The cutting effect by the blade edge also occurs, and the bag is efficiently torn.
[0013]
According to the bag breaker of the present invention, the structure is simpler than the conventional bag breaker because it is composed of a cutter row composed of a plurality of cutters, a linear support member, and a tension relaxation means. Thus, the weight is reduced, the initial height adjustment operation with respect to the transport path of the transport means is simplified, and additional installation to the existing transport device can be easily performed. In addition, since a driving device that generates a force for breaking the bag is not required, the cost is lower than that of a conventional bag breaker.
[0014]
DETAILED DESCRIPTION OF THE INVENTION
Embodiments of the present invention will be described below with reference to the drawings.
[0015]
In the following description, the front in the transport direction of the transport device is referred to as the front, the opposite side is referred to as the rear, and the left and right when looking forward from the rear are referred to as the left and right.
[0016]
FIG. 1 shows a bag breaking apparatus equipped with a bag breaking machine according to the present invention, and FIG. 2 shows a bag breaking machine according to the present invention.
[0017]
In FIG. 1, the bag breaking device includes a transport device (1) composed of an apron conveyor for transporting a waste container bag received from a loading hopper (not shown) obliquely upward, and a transport path (2) of the transport device (1). It consists of two bag-breaking machines (3) and (4) that are arranged in the upper and lower direction at an interval. Of the two bag-breaking machines (3) and (4), the front bag-breaking machine (3) relates to the present invention. As the rear bag breaker (4), any of the conventional bag breakers described above may be used, and detailed illustration and description of the bag breaker (4) are omitted here.
[0018]
As shown in FIG. 1 and FIG. 2, in the bag breaker (3) according to the present invention, a cutter row (6) comprising a plurality of cutters (5) arranged in the front-rear direction and having the cutting edges directed downward is provided in the left-right direction. Are arranged at intervals. The cutter (5) constituting each cutter row (6) has a triangular shape with one apex facing downward, and a blade edge facing downward is formed at the lower end thereof. In each cutter row (6), adjacent cutters (5) are connected by a hinge or the like so as to swing around a horizontal axis extending in the left-right direction.
[0019]
The cutter (5) at the rear end of each cutter row (6) is attached to a horizontal axis (8) extending in the left-right direction secured between the left and right frames (7) so as to be swingable around the horizontal axis. ing. Further, a linear support member (9) made of a wire, a rope, a leaf spring, a coil spring, a chain or the like is attached to the cutter (5) at the front end of each cutter row (6). A support bar (10) is secured between the left and right frames (7) in front of the cutter row (6) by a predetermined distance. A wire, rope, leaf spring, coil spring, chain, etc. are also supported on the support bar (10). A linear support member (11) made of is attached. These linear support members (9) and (11) are connected to each other via a turnbuckle (12) (tension relaxing means). By turning and relaxing the linear support members (9) (11) and the cutter row (6) by the turnbuckle (12), the conveying path (2) of the cutting edge in the cutter (5) of each cutter row (6) The height position with respect to can be easily adjusted.
[0020]
In the bag breaking apparatus having such a configuration, the waste container bag conveyed along the conveying path (2) of the conveying apparatus (1) is first broken by the bag breaking machine (4). The bag breaking rate at this time is about 60 to 70%.
[0021]
Subsequently, the unbroken bag that has been conveyed to the lower side of the bag breaking machine (3) is broken by each cutter row (6) of the bag breaking machine (3). At this time, the cutters (5) connected to each other oscillate so as to undulate in a complicated manner, so that not only the effect of pressing on the bag by its own weight but also the cutting effect by the cutting edge of the adjacent cutter (5) is produced efficiently. The bag is torn. The total bag breaking rate is about 80 to 90%.
[0022]
In the above embodiment, the turnbuckle (12) is used as the tension relaxing means, but instead of this, an apparatus capable of winding and unwinding a linear member such as a winch may be used. The cutter (5) has a triangular shape as viewed from the side, but this shape can be changed as appropriate.
[0023]
Further, in the above embodiment, the bag breaking machine (3) according to the present invention is disposed in front of the conventional bag breaking machine (4), but the present invention is not limited to this, and a plurality of bag breaking machines according to the present invention are provided. May be arranged at intervals in the front-rear direction.
[Brief description of the drawings]
FIG. 1 is a side view showing a bag breaking apparatus equipped with a bag breaking machine according to the present invention.
FIG. 2 is a plan view showing a bag breaking machine according to the present invention.
[Explanation of symbols]
(1): Conveying device
(2): Transfer route
(3): Bag breaker
(5): Cutter
(6): Cutter row
(7): Frame
(9) (11): Linear support member
(12): Turnbuckle

Claims (1)

A bag breaker that is disposed above a conveyance path of a conveyance unit that conveys a waste storage bag and breaks the waste storage bag, and a plurality of cutters whose blade edges are directed downward are arranged in the conveyance direction of the conveyance unit A cutter row is formed by connecting the adjacent ones so as to swing around a horizontal axis perpendicular to the transfer path of the transfer means, and one end of the cutter row is connected to the transfer path of the transfer means. Is mounted so as to be able to swing around a horizontal axis perpendicular to the transport path of the transport means, and a linear support member is attached to the other end of the cutter row. However, the bag breaker is attached to the frame via tension-relaxation means.

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