JPH10156208A - Bag tearing apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent residual matter of torn bags from being twisted on cutting blades of a bag tearing apparatus. SOLUTION: This bag tearing apparatus comprises a blade holding member 4 fixed in a horizontal rotating shaft 3 to be rotated by a driving apparatus 2, a plurality of blades 6 so supported at equal intervals in the circumferential direction by the blade holding member 4 as to freely slide in the directions of the circumference and diameter, and a guide member 8 to move respective blades 6 as to project the blades out of the blade holding member 4 in the upstream side in the refuse bags transportation direction and as to set back the blades in the holding menther 4 in the downstream side in the refuse bags transportation direction. In this case, a pair of bag tearing apparatus main bodies 1, 1 are so set on the opposite to each other as to arrange the blade holding members 4 at a prescribed gap in the horizontal direction and as to make both of the horizontal rotating shaft 3 facing to the downstream side in transportation direction from the upper side view.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a bag breaking device applied to a bag breaking operation of a garbage bag.

[0002]

2. Description of the Related Art In recent years, ordinary garbage other than bulky garbage is often separated and collected as combustibles and incombustibles, and combustibles are stored in flammable and non-polluting garbage bags. It is common to dispose of the waste by incineration or landfill while it is still in the waste bag, but incombustibles are collected in plastic bags or paper bags in addition to the above-mentioned waste bags. Difficulty in tearing bags to remove incombustibles is the biggest obstacle to sorting and recycling or reusing municipal waste.

[0003] Further, as a bag breaking device for breaking a garbage bag, conventionally, a large force is applied to a garbage bag containing municipal garbage to break the garbage bag together with the contents of the municipal garbage. Is commonly used.

[0004] Although this bag breaking device is simple in equipment and operation, since the municipal solid waste itself is crushed, it becomes difficult to sort municipal solid waste in a post-process.
There is also a problem that reuse of the city waste, which is regarded as important, as a resource, may be hindered.

[0005] Further, a drum provided with a cutting tool for breaking the bag around the circle is disposed above a conveyor for transporting the garbage bag, and the drum is rotated so that the refuse conveyed on the conveyor by the cutting tool provided on the drum. A bag breaking device that cuts a bag has been put to practical use.

[0006]

However, in a bag-breaking device provided with a cutting tool on the drum, the broken garbage bag becomes a string and becomes entangled with the cutting tool and the drum. May drop.

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned circumstances, and has a cutting tool holding member in which a cutting tool can protrude and retract, and the blade tool after tearing a bag to break the bag is inserted into the inside of the cutting tool holding member. It is another object of the present invention to provide a bag breaking device that can prevent the remaining material of the bag from being entangled with the cutting tool.

[0008]

In order to achieve the above object, in the bag breaking apparatus according to the first aspect of the present invention, when viewed from above, the bag breaking apparatus can rotate to the downstream of the transport line for bags to be broken. A pair of rotating shafts, which are opposed to each other with the transport line interposed therebetween such that the portion closer to the distal end is slightly downstream of the portion closer to the proximal end than the portion closer to the proximal end, and a blade holding member fixed to each of the rotating shafts A plurality of blades arranged at a predetermined interval in a circumferential direction of each blade holding member and supported by each blade holding member so as to be able to move in a radial direction of each blade holding member, and for each of the blades. The provided cam follower and the blade tool protrude outward from the blade tool holding member when the blade tool is positioned upward with the rotation of the blade tool holding member, and the blade tool holds the blade tool when the blade tool is positioned below. I'm drawn into the members It said cam follower and an annular guide member for guiding each cutting tool holding member.

In the bag breaking device according to a second aspect of the present invention, in addition to the configuration of the bag breaking device according to the first aspect of the present invention, a bag to be broken above the rotary shaft is held by a cutting tool. A pressing member capable of pressing the member is provided.

[0010] In the bag breaking device according to the third aspect of the present invention, in addition to the configuration of the bag breaking device according to the first or second aspect of the present invention, a transport line viewed from above is provided. An angle adjusting mechanism capable of changing the angle of the rotating shaft is provided.

In any of the bag breaking devices according to the first to third aspects of the present invention, when the rotating shaft is rotated,
The cam follower moves along the guide member, and the blades that move upward from below project outward from each blade holding member, and pierce the bag to be broken.

The blades of both blade holders pierced into the bag are separated from each other by the rotation of the rotating shaft and tear the bag.

[0013] The cam follower moves along the guide member, and the blade moving from above to below is pulled into each blade holding member, and the torn bag is separated from the blade.

In the bag breaking apparatus according to the second aspect of the present invention, the pressing member presses the bag to be broken against the blade holding member, and assists the bag breaking by the blade.

In the bag breaking apparatus according to the third aspect of the present invention, the angle of the rotating shaft with respect to the transport line is appropriately changed so as to increase or decrease the interval between the opposed blade holding members, and pierce the bag to be broken. The ratio at which the cutting tools of the two cutting tool holding members separate from each other is adjusted.

[0016]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below.
This will be described together with the illustrated example.

FIGS. 1 to 5 show an embodiment of the bag breaking apparatus according to the present invention.

Reference numeral 1 denotes a bag breaking device main body. The bag breaking device main body 1 is fixed to a driving device 2, a horizontal rotating shaft 3 rotated by the driving device 2, and an end of the horizontal rotating shaft 3. A disk-shaped cutting tool holding member 4, a plurality of cutting tools 6 fitted to the cutting tool holding member 4 so as to be slidable in the radial direction of the cutting tool holding member 4, and having a cam follower 5 at a base; And a disc-shaped guide member 8 having a cam groove 7 which is provided close to the member 4 and engages with the cutting tool 6 via the cam follower 5.

The cutting tool holding member 4 has a plurality of square holes 9 provided radially at equal intervals in the circumferential direction at a substantially central position in the thickness direction of the member. A slit 1 extending along the square hole 9 is provided on the surface of the device 2 side.
0 is formed.

The cutting tools 6 are slidably fitted into the square holes 9 with the sharp cutting edges 6a facing the peripheral side of the cutting tool holding member 4, and the slits are formed at the base end of each cutting tool 6. 10
There is provided a cam follower 5 which protrudes to the side of the blade holding member 4.

The guide member 8 has a substantially V-shaped square groove 7a passing through one side near the center of the member, and a curved line extending along the periphery of the member on the other side of the square groove 7a with the center of the member therebetween. A square groove 7b, and a curved groove 7c that connects both ends of each of the square grooves 7a and 7b to each other and has a cam groove 7 that can rotate the cam follower 5. I have.

The center portion of the guide member 8 is fitted over the horizontal rotary shaft 3 via a rolling bearing 11 so that the cam follower 5 of the cutting tool 6 engages with the cam groove 7 of the guide member 8. .

The guide members 8 support the horizontal rotating shaft 3 so that the curved groove 7b of the cam groove 7 is directed obliquely upward on the upstream side of the garbage bag 12 in the conveying direction.
3 is fixed via a distance spacer 14.

In the pair of bag-breaking apparatus main bodies 1, 1 constructed as described above, the blade holding members 4, 4 are spaced apart from each other by a predetermined distance, and the portions of the horizontal rotating shafts 3, 3 near the distal end are the base ends. The garbage bags 12 are opposed to each other so as to be located on the downstream side in the transport direction (arrow A shown in FIG. 1) of the transport line of the garbage bag 12 slightly from the deviated portion.

When the pair of bag breaking device bodies 1 and 1 are arranged, the opening between the blade holding members 4 and 4 is set to about 25 degrees for general municipal waste. It is preferable to set the angle between 35 degrees.

That is, when the blade holding member 4 is rotated to the downstream side of the transport line when viewed from above, the blade 6 fitted in the square hole 9 of the blade holding member 4 is inserted into the cam groove 7 of the guide member 8. With the movement of the cam follower 5 rolling along, as shown in FIGS. 2 and 5, the garbage bag 12 projects obliquely upward on the upstream side in the transport direction from the peripheral edge of the cutting tool holding member 4 and obliquely downward on the downstream side in the transport direction. As a result, the blade holding member 4 operates so as to be immersed in the peripheral edge thereof.

Reference numeral 15 denotes a pressing member.
Are disposed at predetermined intervals in the axial extension direction on a horizontal fixed shaft 16 provided on the upstream side in the transport direction of the refuse bag 12 above the bag breaking device main bodies 1, 1 and are rotatably fitted to the outside. Done 4
Each boss 17 has a pressing member main body 18 extending from the boss 17 to the downstream side in the transport direction of the trash bag 12.

The pressing member main body 18 is separated from the bosses 17 by a garbage bag such that the pressing member main body 18 spreads at substantially equal intervals between the blade holding members 4 and 4 of the bag breaking apparatus main bodies 1 and 1 facing each other at a predetermined opening degree. 1
2, a warp 19 as shown in FIG. 2 is formed at a portion closer to the distal end than the middle portion in the longitudinal direction, and the base end of the member is cut diagonally at the lower edge. It has a missing serrated receiving tooth 20.

The pressing member 15 is pressed by a pressing member main body 18 by a stopper (not shown) provided at the boss 17.
Of the cutting tool holding member 4 does not fall below the peripheral edge thereof.

Reference numeral 21 denotes a chute.
Is disposed on the upstream side in the transport direction of the garbage bag 12 with respect to the pair of bag breaking device bodies 1 and 1 so as to be inclined downward toward the downstream side in the transport direction, and the inclined surface 21a on which the garbage bag 12 slides down.
Is formed so as to extend to the vicinity of the center of the horizontal rotating shaft 3.

A nozzle (not shown) for injecting an air stream substantially forward in the horizontal direction is provided below the cutting tool holding member 4.
Is provided.

Hereinafter, the operation of the bag breaking device shown in FIGS. 1 to 5 will be described.

When the garbage bag 12 is to be broken, the driving device 2 rotates the blade holding member 4 of the bag breaking device main body 1 via the horizontal rotating shaft 3 so that the blade 2 is mounted on the blade holding member 4. The cutting tool 6 moves in the circumferential direction, and the guide member 8
The position of the cam follower 5 rolling along the cam groove 7 is displaced in the radial direction of the cutting tool holding member 4, so that the cutting tool 6 reciprocates in the radial direction of the cutting tool holding member 4, and the cam follower 5 When the cutting tool 6 passes through the substantially V-shaped square groove 7 a of the groove 7, the cutting tool 6 is immersed inward from the peripheral edge of the cutting tool holding member 4, and the cam follower 5 is formed into a curved shape of the cam groove 7 of the guide member 8. When passing through the square groove 7b, the blade 6
Is in a state of protruding from the peripheral edge of the blade holding member 4.

That is, each cutting tool 6 projects from the periphery of the cutting tool holding member 4 when moving diagonally upward on the upstream side in the transport direction of the garbage bag 12, and protrudes from the periphery of the cutting tool holding member 4 when moving diagonally downward on the downstream side. Immerse yourself in

Accordingly, when the refuse bag 12 is thrown into the bag-breaking apparatus body 1 along the chute 21 as shown in FIG. The cutting edge 6 a of the cutting tool 6 protruding from the peripheral edge of the cutting tool holding member 4 of the apparatus main body 1 pierces the dust 12.

At this time, the pressing member main body 18 comes into contact with the garbage bag 12 from above, and the receiving teeth 20 of the pressing member main body 18 prevent the garbage bag 12 from spontaneously dropping downstream in the loading direction. The own weight acts as a pressing force on the garbage bag 12 and assists the biting of the cutting tool 6 into the garbage bag 12.

As the rotation of the blade holding member 4 progresses, the bag-breaking device for each blade 6 provided on the blade holding members 4 and 4 facing each other with a divergent opening toward the downstream side in the transport direction of the garbage bag 12. Since the interval in the width direction of the main body 1 is gradually widened, the garbage bag 1 into which the cutting tool 6 has penetrated.
2, a pulling force in the width direction of the bag breaking apparatus body 1 is applied, and the garbage bag 12 is torn and breaks, and the contents (municipal garbage) are released separately.

Further, as the rotation of the blade holding member 4 progresses, each blade 6 is gradually moved inward from the peripheral edge of the blade holding member 4 so that the blade 6 is removed from the broken garbage bag 12. The dust bag 12 is pulled out, and the garbage bag 12 from which the contents have been released falls off the cutting tool 6.

When the contents of the garbage bag 12 are empty cans or empty bottles, it is preferable that an air stream is jetted substantially horizontally forward from the nozzle (not shown) described above. The trash bag 12 broken by the air flow is blown forward, so that empty cans, empty bottles and the trash bag 12 broken can be separately collected.

As described above, in the bag breaking apparatus shown in FIGS. 1 to 5, the garbage bag 12 projects from the peripheral edge of the cutting tool holding member 4 on the upstream side in the conveying direction and from the peripheral edge of the cutting tool holding member 4 on the downstream side in the conveying direction. A pair of bag-breaking device bodies 1, 1 each having a plurality of blade tools 6 immersed in the direction, are arranged such that the interval between the blade tool holding members 4 increases toward the downstream in the transport direction of the garbage bag 12 when viewed from above. And the blade holding member 4
Is provided with a pressing member 15 capable of pressing the garbage bag 12 against the garbage bag 12, so that the blade 6 can be reliably pierced into the garbage bag 12 and the garbage bag 12 can be torn by the blade 6. The removed garbage bag 12 can be removed.

FIGS. 6 and 7 show another embodiment of the bag breaking device according to the present invention. In the figures, FIGS. 1 to 5
The same reference numerals denote the same items.

In the bag breaking device shown in FIGS. 6 and 7, a pair of bag breaking device main bodies 1 and 1 in the bag breaking device shown in FIGS.
1 are respectively mounted on a gantry 22.

The gantry 22 includes a base 23 fixed on a frame 27 on which the pair of bag-breaker main bodies 1 and 1 is to be supported.
And a revolving table 24 pivotally supported by the base 23 and on which the bag breaking device bodies 1 and 1 are respectively mounted.

Further, bolt holes 25 are formed at four predetermined positions on the flange 23 a of the base 23 on a line drawn with a predetermined radius from the turning center of the turning table 24, and the turning table 24 is formed.
A portion of the flange portion 24a corresponding to the bolt hole 25 is also provided with a long hole 28 of a required length extending in the circumferential direction.

Further, a fastening bolt 26 is inserted into the bolt hole 25 and the elongated hole 28, and the turning table 24 is moved by the fastening bolt 26 with respect to the base 23 within a range of the length of the elongated hole 28. At an appropriate turning position.

Hereinafter, the operation of the bag breaking device shown in FIGS. 6 and 7 will be described.

The swivel 24 of each of the pedestals 22, 22 is rotated to set an appropriate swivel angle, and the flange 23a of the base 23 is set.
Of the base 23 and the flange 24 of the swivel base 24 by means of the fastening bolt 26 inserted into the bolt hole 25 of the base.
a, and the garbage bag 12 (FIG. 2) for breaking the opening of the pair of blade-holding members 4 and 4 of the pair of bag-breaking apparatus main bodies 1 and 1 placed on each of the frames 22 and 22. ) Is set appropriately according to the size, strength, shape and type of the contents.

Thereafter, as described above, each of the blade holding members 4 is rotated to break the trash bag 12.

Further, an actuator such as a motor or a cylinder can be applied to the means for rotating the swivel base 24 with respect to the base 23.

It should be noted that the bag breaking device of the present invention is not limited to the above-described embodiment, and it is needless to say that various changes can be made without departing from the gist of the present invention.

[0051]

As described above, according to the bag breaking apparatus of the present invention, the following various excellent effects can be obtained.

(1) In any of the bag breaking devices according to the first to third aspects of the present invention, since the structure is simple and the device can be downsized, the installation space is small. I'm done.

(2) In any of the bag breaking devices according to the first to third aspects of the present invention, since only the bag is torn, the problem caused by the crushing of the contents without breaking the contents does not occur. Need not be considered.

(3) In any of the bag breaking devices according to the first to third aspects of the present invention, the blade for tearing the bag can protrude and sink into the periphery of the blade holding member. No debris adheres and remains, and the function of the cutting tool is not hindered by the debris of the bag.

(4) In the bag breaking device according to the second aspect of the present invention, since the pressing member presses the bag thrown into the rotating bag breaking device main body against the rotating bag breaking device main body, the bag breaking device is broken. The bite of the cutting tool of the bag device body is assisted, and the bag breaking operation can be reliably performed.

(5) In the bag-breaking device according to the third aspect of the present invention, the angle of the rotation axis of the body of the bag-breaking device can be adjusted, so that the opening degree of each cutting tool holding member changes. The size and strength of the bag, or the shape of the contents,
The most effective bag breaking operation can be performed according to the type.

[Brief description of the drawings]

FIG. 1 is a plan view showing an example of an embodiment of a bag breaking device of the present invention.

FIG. 2 is a side view of the bag breaking device related to FIG. 1;

FIG. 3 is a cross-sectional view of a cutting tool holding member and a guide member related to FIG. 1;

4 is a view taken in the direction of arrows IV-IV in FIG. 3;

FIG. 5 is a view taken in the direction of arrows VV in FIG. 3;

FIG. 6 is a plan view showing another example of the embodiment of the bag breaking device of the present invention.

FIG. 7 is a view taken along the line VII-VII in FIG. 6;

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 bag-breaking device main body 2 driving device (driving means) 3 horizontal rotating shaft (rotating shaft) 4 cutting tool holding member 5 cam follower 6 cutting tool 8 guide member 12 trash bag (bag) 15 pressing member 23 base (angle adjusting mechanism) 24 turning Table (angle adjustment mechanism)

Claims (3)

[Claims] 1. A transport line which can be pivoted to a downstream side of a transport line of a bag to be broken when viewed from above, and a portion closer to the front end is located slightly downstream of the transport line from a portion closer to the base end. A pair of rotating shafts opposed to each other, a blade holding member fixed to each of the rotating shafts, and a plurality of blade holding members arranged at predetermined intervals in a circumferential direction of each blade holding member and in a radial direction of each blade holding member. A plurality of blade tools supported by each blade tool holding member so as to be movable, cam followers provided for each of the blade tools, and the blade tools are located when the blade tools are located upward with the rotation of the blade tool holding member. An annular guide member projecting outward from the cutting tool holding member and guiding the cam follower for each cutting tool holding member so that the cutting tool is drawn into the cutting tool holding member when the cutting tool is located below. Become A bag breaking device characterized by the above-mentioned. 2. The bag breaking device according to claim 1, further comprising a pressing member which can press the bag to be broken against the blade holding member above the rotation shaft. 3. An angle adjusting mechanism for changing an angle of a rotation axis with respect to a transport line viewed from above is provided.
Alternatively, the bag breaking device according to claim 2.