JPH10272377A - Bag breaking device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a bag breaking device that unseals a bag for packing a valuables such as refuse of resources and an inner bag containing bottles which is wrapped by the former bag. SOLUTION: This bag breaking device is made up of a pair of bag breaking wheels 20 arranged in close proximity to each other for unsealing a bag packing contents. Each of the bag breaking wheels 20 has a wheel 12 and a conically trapezoidal saucers 16 provided on a rotary shafts 6b which are slightly inclined with the rotary shafts 6a. In addition, first pointed head parts 3a protruding almost perpendicularly upward are provided at almost an equal interval on the peripheral edge of the wheel 12, and second pointed head parts 13 are arranged at an equal interval in the peripheral direction on the inner peripheral part of the wheel 12. Further, the protrusion angle of the second pointed head parts 13 is different from that of the first pointed head parts 3a, and a pressing mechanism 19 fixed to a trestle is arranged above the adjacent parts of the bag breaking wheels 20. Thus it is possible to positively unseal a bag packing valuable materials such as refuse of resources and an inner bag.

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 used in a resource recycling plant, and more particularly, to a method for removing cans from waste.
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus used for sorting and recovering valuable resources in bottles and recycling them, and relates to a bag breaking apparatus for opening a plastic bag or the like in which valuable resources are packed.

[0002]

2. Description of the Related Art A conventional bag breaking device is disclosed, for example, in Japanese Patent Application Laid-Open No. 4-215930. 9 to 11 show the main parts of a conventional bag breaking device. 9 is a top view of the bag breaking device, FIG. 10 is a side view thereof, and FIG. 11 is a cross-sectional view taken along line AA of FIG. In these figures, a pair of bag-breaking wheels 1 are arranged close to each other, and the bag-breaking wheel 1 includes a wheel 2 and a frustoconical saucer 4. On the periphery of the wheel 2, pointed members 3 are arranged at equal intervals in the circumferential direction. The pointed member 3 is composed of a rod-shaped member 3b and a pointed head 3a provided at the tip thereof and protruding substantially vertically upward. Have been. The pointed head 3a projects substantially vertically upward.
While the wheel 2 is arranged substantially horizontally, the frustoconical saucer 4 is arranged at a predetermined inclination angle.

The wheel 2 is provided on a rotating shaft 6a and rotates at substantially the same angular velocity. A frustum-shaped conical saucer 4 is provided on a rotating shaft 6b slightly inclined inward with respect to the rotating shaft 6a. An annular lip 5 is provided around the periphery of the frusto-conical saucer 4 and rotates at the same angular velocity as the wheel 2. The pair of bag-breaking wheels 1 are arranged close to each other and spaced apart in the normal direction, and the pointed head 3 a protrudes above the annular lip 5 in the vicinity. One bag breaking wheel 1 rotates clockwise Y ₁ , and the other bag breaking wheel 1 rotates counterclockwise Y ₂
Is rotating.

In the vicinity of the vicinity of the pair of bag breaking wheels 1,
An input port 10 is provided in which valuable bags D such as cans and bottles and a bag B made of plastic or the like in which an inner bag C is packed are provided, and a pressing mechanism 7 fixed to a gantry 11 is disposed above this proximity portion. Have been. In the pressing mechanism 7, a bar 7b is rotatably mounted on a bar 7a fixed to the beam, and a bar 7d is rotatably mounted on a mounting portion of the beam.
A bar 7c to which the pressing plate 8 is fixed is rotatably provided at the other end. Reference numeral 7e denotes a spring provided between the bars 7a and 7d, which is arranged and adjusted so that the pressing surface of the pressing plate 8 faces the loading port side of the bag B packed with valuables in a normal state.

[0005] In this bag breaking apparatus, a bag B packed with valuables D and an inner bag C is fed into the vicinity of the bag breaking wheel 1 from the direction of the arrow X from the inlet 10. The point 3a
Is protruding. The bag B in which the valuables D and the like are packed is pierced by its own weight into the pointed head 3 a and abuts against the pressing plate 8 of the pressing mechanism 7 by the rotating force of the bag breaking wheel 1. The bag B moves as the bag breaking wheel 1 rotates, and is pushed by the bag B, so that the pressing plate 8 rotates in the horizontal direction from the inclined position. Pointed head 3
a penetrates the bag B sufficiently, and the pointed portions 3a of both wheels tear the bag B in both directions. The contents are discharged to the chute 12 from the hole opened in the bag B. Thereafter, the fragments B ₀ of the bag B torn at both ends are collected.

[0006]

However, as shown in FIG. 11, the valuables D such as cans / bottles and the small inner bag C In many cases, the bag has a double bag structure. Therefore,
In the conventional bag breaking apparatus, the bag B is pressed and torn by the pressing mechanism 7, and the bag B is broken and the valuables D such as cans and bottles are discharged. However, since the inner bag C in the bag B hardly touches the pointed head 3a or is not torn even if touched,
The inner bag C has a drawback that the inner bag C is ejected from the pressing plate 8 to the frustoconical saucer 4 without being opened. Then, the inner bag C is ejected to the frustoconical saucer 4 without being opened, and the inner bag C is discharged to the chute 12. Further, the bag may be dropped to an unexpected place or may be placed on the bag breaking wheel 1, which may cause a failure of the bag breaking device.

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned problems, and is directed to a bag for packing valuables such as recyclable garbage and an inner bag for storing bottles and the like stored in the bag. An object of the present invention is to provide a bag breaking device capable of reliably opening the bag.

[0008]

Means for Solving the Problems The present invention has achieved the above-mentioned object, and the invention of claim 1 arranges a pair of bag-breaking wheels close to each other and opens the bag in which the contents are packed. In the bag breaking device, the bag breaking wheel includes a wheel and a frusto-conical saucer, and cusps are provided at substantially equal intervals on a periphery of the wheel, and an angle different from the cusp inside the cusp. A bag breaking device characterized by having a pointed tip protruding from the bag. In the present invention, bag breaking performance is enhanced by providing pointed heads having different projection angles on the bag breaking wheel.

According to a second aspect of the present invention, there is provided a bag breaking apparatus in which a pair of bag breaking wheels are arranged close to each other to open a bag in which contents are packed, wherein the bag breaking wheel comprises a wheel and a truncated conical saucer. And a pointed head is provided on the periphery of the wheel at substantially equal intervals, and other pointed heads are arranged at substantially equal intervals in a circumferential direction inside the pointed head. In the present invention, the pointed heads are arranged on the periphery of the wheel, and the pointed heads are further arranged on the inner periphery of the wheel so as to open the inner bag.

According to a third aspect of the present invention, there is provided a bag breaking apparatus in which a pair of bag breaking wheels are arranged close to each other to open a bag in which contents are packed, wherein the bag breaking wheel is provided on a rotating shaft. And a frusto-conical saucer provided on a rotation axis slightly inclined with respect to the rotation axis, a first pointed head protruding substantially vertically upward at substantially equal intervals on the periphery of the wheel, Characterized in that the second cusps are arranged at equal intervals in the circumferential direction on the inner periphery of the second cusp, and the projection angle of the second cusps is different from the projection angle of the first cusps. I do. In the present invention, the first cusps are arranged on the periphery of the wheel, and the cusps having different protruding angles are arranged on the inner periphery thereof, so that the inner bag is securely opened, thereby breaking the inner bag. The bag performance is enhanced.

According to a fourth aspect of the present invention, in the invention of the bag breaking device according to the first, second or third aspect, the cusps which are further arranged at equal intervals on the periphery of the wheel and project substantially vertically upward. It is characterized by having a head. According to the present invention, a relatively large hole is opened by adding a pointed head to the periphery of the wheel at substantially equal intervals, and the contents are easily discharged from the bag.

[0012] Further, the invention according to claim 5 is based on claims 1, 2,
In the invention of the bag breaking device according to 3 or 4, the conical surface of the frustoconical saucer has a hole through which the cusp penetrates. According to the present invention, the pieces of the bag penetrating the pointed head can be pulled out by using the rotary motion by the holes provided in the frustoconical saucer.

Further, the invention of claim 6 is the invention according to claims 1, 2,
In the invention of the bag breaking device according to 3, 4, or 5, a pressing mechanism is provided above an adjacent portion of the pair of bag breaking wheels,
A plate is provided on the left and right sides of the pressing plate of the pressing mechanism. According to the present invention, the inner bag pushed out from the pressing plate can be held down by the plate, and the inner bag can be torn by the speed difference from the pointed head.

[0014]

BEST MODE FOR CARRYING OUT THE INVENTION A bag breaking device of the present invention is used in a resource recycling plant for recycling resources, and is a bag breaking device for opening a plastic bag or the like packed with valuables such as cans and bottles. . Hereinafter, embodiments of the present invention will be described with reference to the drawings.

(Embodiment 1) An embodiment of the present invention will be described with reference to FIGS. FIG. 1 is a top view showing an outline of the bag breaking device, FIG. 2 is a side view thereof, and FIG.
FIG. 4 is a cutaway perspective view of the bag breaking device. 1 to 4, a pair of bag breaking wheels 2
0 is disposed in close proximity, and the bag breaking wheel 20 is the wheel 1
2 and a frusto-conical saucer 16. Wheel 20
Is provided on a rotating shaft 6a, is rotated at substantially the same angular velocity by a driving device 9, and is provided with a frustoconical saucer 16 on a rotating shaft 6b slightly inclined inward with respect to these rotating shafts 6a. It is rotating at the same angular velocity as 20.
The inclination angle of the rotation shaft 6b is, for example, about 4 degrees with respect to the vertical. The pair of bag breaking wheels 20 are arranged close to each other. The wheel 12 is disposed substantially horizontally, and the frustoconical saucer 16 is disposed at a predetermined inclination angle determined by the rotation shaft 6b. In the frustoconical saucer 16, the portion where the pair of bag-breaking wheels 20 is closest is closest to the wheel 12,
The opposite side is located at the farthest position. Then, one of the breakage wheel 20 is rotated in a clockwise direction Y _1,
Other breakage wheel 20 is rotated in the counterclockwise direction Y _2.

At the periphery of the wheel 12, pointed members 3 are radially arranged at regular intervals in the circumferential direction. The pointed member 3 is composed of a rod-shaped member 3b and a first pointed head 3a provided at the tip thereof and protruding substantially vertically upward. Furthermore,
A second pointed head 13 is radially arranged on the inner peripheral portion of the wheel 12 at the tip of an L-shaped member fixed to the wheel 12. The pointed members provided with the second pointed heads 13 are arranged at equal intervals in the circumferential direction, and the first pointed heads 3a
Protrudes substantially vertically upward, while the second cusp 1
3 is arranged so as to face slightly upward.

Further, on the periphery of the frustoconical saucer 16, rod members 14 are radially arranged at equal intervals, and
Is provided with an annular portion 17 at the other end. Further, a frusto-conical annular portion 18 is provided on the skirt portion of the frusto-conical saucer 16, and covers the periphery of the frusto-conical saucer 16. A plurality of holes 15 are provided in the frustoconical saucer 16 in the circumferential direction for the second pointed head 13 to protrude. In the frusto-conical saucer 16, in the vicinity of the bag breaking wheel 20, the first cusp 3 a protrudes upward from between the rod-shaped members 14, and the second cusp 3 b protrudes from the hole 15 to a predetermined height with respect to the horizontal plane. Looking upward at an angle. Further, the frustoconical annular portion 18 of the skirt portion of the frustoconical saucer 16 can prevent the contents and the like from remaining on the annular lip.

In the vicinity of the pair of bag breaking wheels 20, there is provided an input port 10 for inputting a bag B made of plastic or the like in which valuables D such as cans and bottles and an inner bag C are packed. A pressing mechanism 19 fixed to the gantry 11 is disposed above the proximity portion. As shown in FIGS. 3 and 4, the pressing mechanism 19 includes a bar 19 b rotatably attached to a bar 19 a fixed to a beam, and a bar 19 b for position adjustment.
9c is mounted, and a bar 19d is rotatably mounted on the mounting portion of the beam. A bar 1 having a pressing plate 21 fixed to the other ends of the bar 19d and the position adjusting bar 19c.
9e is rotatably mounted. A spring 2 is attached to a portion hanging down from the portion fixed to the gantry 11 and the bar 19d.
3 are provided. A plate 21a is provided at a leading edge of the pressing plate 21, and a plate 21b is provided at a side edge thereof. In a normal mounting state, the pressing surface of the pressing plate 21 packs valuables with It is arranged so as to face the input port side. 22 is a stopper member.

Next, the bag breaking operation of the bag breaking device will be described. As shown by the arrow X, the bag B in which the valuables D and the inner bag C are packed is put into the vicinity of the bag breaking wheel 20 from the inlet 10. Bag B packed with valuables D etc.
By piercing the first pointed head 3a with its own weight, the bag breaking wheel 2
The pressing mechanism 19 is pushed by the rotation force of 0 and comes into contact with the pressing plate 21 of the pressing mechanism 19. The bag B pushes the pressing plate 21 as the bag breaking wheel 1 rotates, and the pressing plate 21 rotates in the horizontal direction from the inclined position. The first point 3a penetrates sufficiently through the bag B, and the first point 3a of both wheels tears the bag B in both directions. The contents are discharged to the chute 12 from the hole opened by tearing the bag B by the first pointed head 3a. As the bag breaking wheel 20 rotates, the torn fragments B ₀ of the torn bag B raise the annular portion 17, and the fragments B ₀ entangled with the first cusp 3 a are pulled out and collected. On the other hand, in the inner bag C, the second pointed head 13 is mainly pierced, and the pressing plate 21 or the plate 21b is
By pressing the plate 21b and the second pointed head 13
And the contents are released. Ca in FIG. 1 indicates a fragment of the torn inner bag.

(Embodiment 2) Another embodiment of the present invention will be described with reference to FIGS. FIG. 5 is a perspective view of the present embodiment, FIG. 6 is a cutaway perspective view thereof, and FIG. 7 is a view for explaining the removal of the fragments of the bag entangled with the pointed head. 5 and 6 show only one of the pair of bag breaking wheels 20, and the other has the same shape.

5 and 6, this bag breaking wheel 2
0 is the wheel 12 on the rotating shaft 6a as in the above embodiment.
Is provided, and the rotating shaft 6 is slightly inclined with respect to the rotating shaft 6a.
b, a frustoconical saucer 16 is provided. Wheel 1
2, a bar-shaped member 3b is provided on the periphery of the rod-shaped member 3b.
A first cusp 3a is formed at a tip of the wheel 12 so as to face substantially vertically upward.
Is provided. Further, on the periphery of the wheel 12, radially pointed members 25 are arranged at equal intervals in the circumferential direction. The pointed member 25 is a rod-shaped member 25b.
And a third cusp 25a provided at the tip of the third cusp 25a. The third cusp 25a is arranged on the inner peripheral portion of the position where the first cusp 3a is arranged, and the third cusp 25a The head 25a projects substantially vertically upward.

The frustoconical saucer 16 has a second point 13
A protruding hole 15 is provided, and a frustoconical annular portion 18 is provided on the skirt portion of the frustoconical saucer 16. Notched portions 18a and 18b are formed in the circular trapezoidal annular portion 18. The notch 18b coincides with the hole 15 for the second pointed head 13 to protrude upward, and the notch 18a
Are aligned with the protruding position of the pointed head 25a. A pressing mechanism 19 that presses a bag packed with valuables is provided above the vicinity of the bag breaking wheel 20. As in the above-described embodiment, the pressing mechanism 19 includes a pressing plate 21, a plate 21 a provided at the tip of the pressing plate 21, and a plate 21 provided on both sides of the pressing plate 21.
b.

Subsequently, referring to FIG. 7, the second cusp 1
The operation of pulling out bag fragments from 3 will be described. 4A to 4D, as shown by the arrows, the direction of rotation of the bag-breaking wheel is such that the bag-breaking wheel 20 is rotated from the vicinity thereof, and the pointed head 13 is located below the frustoconical saucer 16. It shows until it is located.

As shown in FIG. 5, a first cusp 3a and a third cusp 25a are provided on the periphery of the bag breaking wheel 20, and valuable resources are packed by these cusps. The sack is torn to the left and right by the rotational force. On the other hand, the bag pressed by the pressing mechanism 19 is the second pointed head 1
3 and is torn as the bag breaking wheel 20 rotates. FIG. 7A shows this state. As shown in FIGS. 7B to 7D, the bag Ca entangled with the second cusp 13 rises as the frustoconical saucer 16 rotates, so that the second cusp 13 gradually moves downward. Go to and be pulled out. A large hole is opened in the bag by the pointed heads 3a, 25a and the pointed head 13, and the contents are discharged.
This pulling-out operation is substantially the same in the above embodiment.

Embodiment 3 Another embodiment of the present invention will be described with reference to FIG. In the present embodiment, FIG.
Slot 15a in the frustoconical saucer 16 of the bag breaking wheel 20
Is provided on the wheel, and a multi-stage pointed head 13, 26, 2
7 is a bag breaking device in which it is arranged. It is intended that the bag can be reliably opened by forming the pointed head in multiple stages. The cusps 13, 26, 27 are formed at the upper tip of an L-shaped member fixed to the wheel, and these cusps are arranged radially in the normal direction and project slightly upward. From the long hole 15a, these pointed heads 13, 2
6, 27 are arranged so as to be able to protrude.

The bag-breaking wheel 20 rotates counterclockwise as indicated by arrow Y, and the other bag-breaking wheel (not shown) rotates clockwise to open the bag in which valuables are packed. . The pointed heads 13 are arranged on the wheel at equal intervals in the circumferential direction, as in the embodiment described above, and project slightly upward. The topmost pointed head 27 may project substantially horizontally. The pointed heads 26, 27 are arranged sequentially in the inner circumference of the wheel. Also, the pointed heads 13, 26, 27
May be different depending on the position. Needless to say, the pressing device 19 is disposed above a portion where the pair of bag breaking wheels 20 is close to each other. The configuration is the same as that of the above embodiment, and the description thereof will be omitted.

The frusto-conical saucer of the present embodiment does not necessarily have to have a strictly frusto-conical shape.
Any structure may be used as long as the contents or the inner bag riding on the frustoconical saucer can easily fall. Further, in the present embodiment, the pointed head is not limited to the above-mentioned embodiment, and may have any structure as long as it is sufficient to fix the pointed head.

[0028]

As described above, according to the present invention, the pointed head is formed not only on the peripheral edge of the wheel but also on the inner peripheral portion, so that the inner bag mixed in the garbage bag can be reliably broken. There are advantages that can be. In addition, it has a cusp protruding at a different angle from the cusp protruding vertically upward, so that a relatively large opening is formed in the bag for packing the contents,
There is an advantage that the contents can be reliably discharged and the pieces of the bag can be reliably recovered.

Further, according to the present invention, since the fragments of the bag pierced into the pointed head are automatically pulled out, the pointed head is always kept clean and the inner bag mixed in the garbage bag is broken. There is an advantage that bag performance is maintained. Furthermore, since the fragments of the bag do not accumulate on the pointed head, there is an advantage that there is no need for manual cleaning and there is little risk of failure even in continuous continuous operation. Furthermore, since the inner bag is also torn, there is no need to separate the inner bag from valuables on the downstream side of the bag breaking device, and there is an advantage that a sorting device or the like and a manual sorting operation are not required.

[Brief description of the drawings]

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

FIG. 2 is a side view of FIG.

FIG. 3 is a sectional view taken along line AA of FIG. 2;

FIG. 4 is a partially cutaway perspective view of FIG. 1;

FIG. 5 is a cutaway perspective view showing another embodiment of the bag breaking device of the present invention.

FIG. 6 is a cutaway perspective view of the bag breaking wheel of FIG. 5;

FIG. 7 is a diagram illustrating an operation of pulling out pieces of a bag.

FIG. 8 is a perspective view showing another embodiment of the bag breaking device of the present invention.

FIG. 9 is a top view of a conventional bag breaking device.

FIG. 10 is a side view of FIG. 9;

FIG. 11 is a sectional view taken along the line AA in FIG. 10;

[Explanation of symbols]

 Reference Signs List 3 pointed member 3a first pointed head 3b rod-shaped member 6a, 6b rotating shaft 9 drive device 10 input port 11 gantry 12 wheel 13 second pointed head 14 rod-shaped member 15 hole 16 frusto-conical sousa 17 annular portion Reference Signs List 18 Frustoconical annular portion 19 Pressing mechanism 19a, 19b, 19d Bar 19c Position adjustment bar 20 Breaking wheel 21 Pressing plate 21a, 21b Plate 22 Stopper member 23 Spring 25 Pointed member 25a, 26, 27 Pointed head

Continued on the front page (72) Inventor Keishi Akiho 1-2-2 Marunouchi, Chiyoda-ku, Tokyo Nihon Kokan Co., Ltd. (72) Inventor Toshiro Yawa 1-2-1, 1-2 of Marunouchi, Chiyoda-ku, Tokyo Inside the corporation

Claims (6)

[Claims] Claims: 1. A pair of bag breaking wheels are arranged in close proximity,
In a bag breaking device for opening a bag packed with contents, the bag breaking wheel includes a wheel and a frustoconical saucer, and a pointed head is provided at substantially equal intervals on a periphery of the wheel, and A bag-breaking device having a cusp projecting at an angle different from the cusp inside. 2. A pair of bag-breaking wheels are arranged close to each other,
In a bag breaking device for opening a bag packed with contents, the bag breaking wheel includes a wheel and a frustoconical saucer, and a pointed head is provided at substantially equal intervals on a periphery of the wheel, and A bag breaking device characterized in that other pointed heads are arranged at substantially equal intervals in the inner circumferential direction. 3. A pair of bag-breaking wheels are arranged close to each other,
In a bag breaking device for opening a bag packed with contents, the bag breaking wheel includes a wheel provided on a rotating shaft and a truncated cone-shaped saucer provided on a rotating shaft slightly inclined with respect to the rotating shaft, A first cusp protruding substantially vertically upward at substantially equal intervals on a periphery of the wheel, and a second cusp arranged at equal intervals in a circumferential direction on an inner peripheral portion of the wheel; A projecting angle of the pointed head is different from a projecting angle of the first pointed head. 4. The bag-breaking device according to claim 1, 2 or 3, further comprising a pointed head disposed at an equal interval on the periphery of the wheel and protruding substantially vertically upward. Bag breaking device. 5. The bag breaking device according to claim 1, wherein the frusto-conical saucer has a hole through which the cusp penetrates in a conical surface thereof. 6. The bag breaking device according to claim 1, further comprising a pressing mechanism above an adjacent portion of the pair of bag breaking wheels, and a right and left side of a pressing plate of the pressing mechanism. A bag breaking device comprising a plate.