JPH08103681A - Bag breaking device - Google Patents

Abstract

(57) [Summary] [Purpose] During conveyance of the conveyer 10, the conveyance force is used to smoothly cut the dust bag a. [Structure] A blade 13 is attached to a lifter piece 12 of a conveyor 10 from a pit P to a separation process. Rollers 20 and 30 that can move up and down are provided on the slope where the rising starts. The dust bag a from the pit P hits the roller 20 at the ascending port and is broken by the blade 13 due to its resistance. At this time, due to the ascending opening, a downward force acts on the dust bag a, and the roller 20
There is almost nothing that gets over the above, and the dust layer thickness is made uniform by breaking the bag. That is, a fixed amount is supplied to the separation step. Further, the front roller 20 has a disk provided at a required interval, and the rear roller 30 has a cylindrical shape. Laura 2
Install shock absorbers on 0 and 30.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a device for preliminarily breaking a trash bag collected from each household or the like before a trash disposal operation such as sorting.

[0002]

[Technical background] For example, recyclable waste such as bottles and cans (generally referred to as recyclable waste) should be packed in a plastic bag or a paper bag because it is easy and hygienic to collect. It is sent to the processing plant. Therefore, in the processing plant, it is necessary to break the resource waste in advance before separating it from metal, glass, plastic, or the like.

As this bag breaking technique, Japanese Patent Publication No. 2-5141
Japanese Patent Publication, Japanese Patent Publication No. 2-32026, and Japanese Utility Model Publication No. 3-10
A plurality of rotary blades or screws described in Japanese Patent No. 9657 and the like, which breaks the bag by its rotational force (technology), Japanese Patent Publication No. 2-5142, Japanese Patent Publication No. 5-6628.
An arm-shaped blade described in Japanese Patent No. 4 etc. that holds a bag and breaks the bag (technology), and a blade provided on the conveyor described in Japanese Patent Publication No. 62-21578 and Japanese Patent Publication No. 5-85442. , There is something (technology) that breaks the bag with the blade during transportation.

[0004]

In the above technique, since the bottle or the like is easily cracked due to the rotational force, the subsequent sorting process becomes complicated. For this reason, it is necessary to apply an appropriate rotational force according to the size and shape of the bag and the characteristics of the contents, which is extremely difficult to control. Further, the torn bag is easily entangled with the rotating portion, and if entangled, it causes poor rotation, and the entangled bag is difficult to remove.

Since the above technique depends on the holding force, like the technique, in order to prevent the damage of the bottle and the like, it is necessary to control the holding force to be suitable for the shape of the bag and the like, which is very difficult to control. Has become.

[0006] The above technique is excellent in workability because it breaks the garbage bag while conveying it. However, in the technique described in Japanese Patent Publication No. 62-21578, the conveyors are provided at the top and bottom, and the equipment therefor is large-scale.

Further, in the technique described in Japanese Patent Publication No. 5-85442, since a blade is provided on the conveyor and the bag is ruptured when the upper surface is open, a large compressive force does not act on the bag and the contents are less damaged. There is. However, the bag breaking action is performed by the difference in speed between the bag and the blade due to the passage resistance between the vertically moving plate-shaped gate plate and the blade, and the bag often slips into the gate plate and cannot smoothly pass through. If it is quiet, continuous bag breaking will not occur.

Under the above circumstances, the first object of the present invention is to smoothly pass through the bag when the bag is broken in the technology described in Japanese Patent Publication No. 5-85442. The second problem is to improve the bag breaking action in addition to the first problem. The third problem is that in addition to the first problem,
It is to be able to supply a fixed amount of garbage.

[0009]

In order to solve the above-mentioned first problem, according to the present invention, a belt conveyor for conveying a dust bag is required to have a required widthwise position at a required distance in the conveying direction. The cutting blades are provided so as to project at intervals, and the widthwise rotating roller that can move back and forth toward the carrying surface is provided in the middle of the carrying surface.

In order to solve the above-mentioned second problem, according to the present invention, in the structure of the bag breaking device which solves the above-mentioned first problem, two rotating rollers are provided in front of and behind the carrying direction. , The front rotary roller has a disc mounted at a required axial distance, and the rear rotary roller has a cylindrical shape.The rotary roller is rotated by a driving machine so as to feed the dust bag in the conveying direction. In this case, the rotary roller is provided with a shock absorber.

In order to solve the third problem, according to the present invention, in the structure of the bag breaking device which solves the first and second problems, the conveyor surface of the belt conveyer has horizontal dust. The bag is inclined upward from the throwing-in portion, and the rotating roller is provided at a portion where the horizontal throwing-in portion is shifted to the upwardly inclined portion.

The belt conveyor has not only a rubber belt conveyor and a steel conveyor, but also a slat conveyor, an apron conveyor, a bread conveyor, and the like, which has a conveying surface large enough to prevent dust bags from falling. Includes everything that moves.

[0013]

According to the present invention thus constituted, when the dust bag is conveyed on the conveyor, the dust bag hits the rotating roller to cause a difference in the conveying speed of the conveyor, and this difference causes the cutting blade to separate the bag. Be broken. At this time, the rotating roller rotates to send out the dust bag and rises appropriately to eliminate clogging of the dust bag.

When the front roller is a disc, the dust bags of different sizes and heights are pressed on the outer peripheral surfaces of the discs at the required intervals in the conveyor width direction. The trash bags are torn and their height is averaged to some extent. The cylindrical roller hits the trash bag group whose heights are averaged to some extent, and further bag crushing is performed including the bag not crushed.

If the rotary roller rotates independently, the dust bag is surely delivered, and if it has a shock absorber, an appropriate pressing force is applied.

In the case where the rotating roller is provided at the portion where the rotating roller moves to the upward inclined portion, the rotating roller moves to the inclined portion unless the dust bag is inserted into the inserting portion at a height higher than that of the rotating roller. Since it is located in the part, a downward force is exerted on the transported dust bag, and it hardly passes over the rotating roller. For this reason, the dust bag that has passed under the rotating roller is sent out from the input unit, and a certain amount of dust is supplied in a fixed amount (fixed amount delivery). At this time, if the rotary roller rotates as required, the supply amount is determined by the rotation amount, and the accuracy of the fixed amount supply is increased.

[0017]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS As shown in FIGS. 1 and 2, a loading pit P is formed in the work floor surface, and a dust bag a is loaded into the pit P from a garbage truck. A conveyor 10 is arranged at the center of the lower surface of the pit P, and the conveyor 10 extends to the sorting process on the work floor surface. That is, the conveyor 1
0 runs horizontally in the pit P and extends obliquely upward from its end.

As shown in FIGS. 3 to 5, the conveyor 10 is formed by connecting a flat plate 11 to a roller shaft 14a of a chain 14 via a bracket 11a. When the chain 14 moves on a rail 15, To run. A lifter piece 12 is appropriately attached to the flat plate 11, and a cutting blade 13 is fixed to the piece 12. The intervals, sizes, and numbers of the lifter pieces 12 and the cutting blades 13 are arbitrary. Further, the cutting blade 13 may be provided separately from the lifter piece 12. A skirt 16 is installed on the entire length of both sides of the conveyor 10, and a rubber closing plate 16a is provided over the entire length of the lower edge of the skirt 16.

Two rotating rollers 20 and 30 are provided at the ascending port of the conveyor 10. The number of rollers 20 and 30 is also arbitrary. Front roller 20 and rear roller 3
0 is the distance (gap) from the transport surface (top surface of conveyor 10)
However, the former is wider than the latter so that the bag-breaking action described later can be performed smoothly. The gap is, for example, 150 mm and 50 mm, and is appropriately set according to the size and shape of the dust bag a.

The front roller 20 is, as shown in FIG. 4, a rotary shaft 21 provided with a circular plate 22 at a required interval. The interval is appropriately determined in consideration of the size and shape of the dust bag a and the biting and breaking action described later. On the other hand, the rear roller 30 has a rotating shaft 31 as shown in FIG.
The cylindrical drum 32 is provided in the.

Both rollers 20 and 30 are shown in FIGS.
As shown in FIG.
3, 33 are integrally connected, and the bases 24, 34 of the motors 23, 33 are suspended by the shock absorbers 26, 36 via the gate frames 27, 37. Therefore, the rollers 20 and 30 are connected to the shock absorbers 26 and 3 respectively.
While being absorbed by the shock absorber 6, it is guided by guides 25 and 35 so that it can move up and down. In the figure, 28 and 38 are through holes of the rotary shafts 21 and 31 formed in the skirt 16.

Rollers 20, 30 by motors 23, 33
The rotation speed is lower than the transfer speed of the conveyer 10 and the rotation speed is low. The rotation speeds of the rollers 20 and 30 may be the same or different, and may be appropriately selected according to the characteristics such as the size and shape of the dust bag a.

This embodiment has the above-mentioned structure.
When the conveyor 10 is driven (runs), the dust bag a in the pit P is carried by the lifter pieces 12 as it travels, and is raised as shown in FIG.
Leading to. First, as shown in FIG. 2B, the dust bag a is slower than the conveyor 10 due to the pushing up of the roller 20 and the resistance due to the pushing up, the difference between the feeding speed of the roller 20 and the conveying speed of the conveyor 10, and the like. Then, it is torn by the tear blade 13, and the dust (bin, can, etc.) therein is ejected and becomes substantially flat over the width direction of the conveyor 10, as shown in FIG. At this time, the roller 20
Is made up of a plurality of discs 21, so a garbage bag a
Since they are pressed in a state of biting at intervals, the dust bags a having different sizes and shapes can be smoothly torn across the entire width direction of the conveyor. Incidentally, if the roller 30 is cylindrical like the roller 30, the roller may be lifted by the large dust bag a and the small dust bag a may pass without being cut.

The roller 30 on the rear side presses dust (including the dust bag a) whose layer thickness is averaged by the same action as that of the roller 20, thereby tearing up the dust bag a which has not been broken and Further sever insufficient bag breakage. In this way, the dust is reliably taken out of the bag a and sent to the next sorting step.

[0025]

As described above, the present invention is configured as described above, and since the dust bag is pressed by the rotating roller, the dust bag is less likely to be clogged and the bag can be smoothly broken.

Further, by adding two rollers, forcibly rotating the rollers, and additionally providing a shock absorber, the bag breaking action is further improved.

Further, if a roller is provided at the shifting portion of the inclined portion, it is possible to smoothly supply the fixed amount.

[Brief description of drawings]

FIG. 1 is a schematic diagram of an embodiment.

FIG. 2 is a schematic perspective view of the embodiment.

FIG. 3 is a partial perspective view of the conveyor of the same embodiment.

FIG. 4 is a cutaway side view of essential parts of the embodiment.

FIG. 5 is a cutaway side view of essential parts of the embodiment.

FIG. 6 is an operation explanatory view of the same embodiment.

[Explanation of symbols]

 10 Conveyor 11 Flat Plate 12 Lifter Piece 13 Cleaving Blade 14 Chain 15 Rail 16 Skirt 20 Front Roller 21 Rotating Shaft 22 Disc 23, 33 Variable Speed Motor 24, 34 Shock Absorber 25, 35 Guide 30 Rear Roller 31 Rotating Shaft 32 Cylindrical drum P Pit a Garbage bag

Claims (5)

[Claims] 1. A belt conveyor 10 for conveying a dust bag a.
The cutting blades 13 are provided at required intervals in the conveying direction on the conveying surface so as to project at the required intervals in the width direction, and in the middle of the conveying surface, the rotating roller in the width direction that can move back and forth toward the conveying surface. A bag breaking device characterized by being provided. 2. The bag breaking device according to claim 1, wherein two rotating rollers 20 and 30 are provided in front of and behind the conveying direction, and the rotating roller 20 on the front side is provided with a disc 22 at a required axial interval. The bag-breaking device is characterized in that the rotating roller 30 on the rear side has a cylindrical shape 32. 3. The rotating roller 20, 30 comprises a drive unit 2
The bag breaking device according to claim 1 or 2, which is rotated by 3, 33 so as to feed the dust bag a in the conveying direction. 4. The bag breaking device according to claim 1, wherein the rotary rollers 20 and 30 are provided with shock absorbers 26 and 36, respectively. 5. The bag breaking device according to any one of claims 1 to 4, wherein the conveyor surface of the belt conveyor 10 is inclined upward from a horizontal loading portion of the dust bag a, and the horizontal loading is performed. A bag breaking device, characterized in that the rotating rollers 20, 30 are provided in a portion that transitions from a portion to an upwardly inclined portion.