JP2002306985A - Bag breaker - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a bag breaker which is capable of promoting release of the contents of a baler and a bag containing waste, or the like, separately collecting the resulting separated flexible materials such as a bag and string, and continuously being operated, and also has enhanced durability and the maintenance of which can be facilitated. SOLUTION: This bag breaker 1 consists of: a first vertical belt conveyor 10 which has a conveying section 13 for conveying a baler and a bag B containing waste to a bag breaking section, a suspension section 14 and a number of projections 12 formed on the outer peripheral surface; a bag breaking device 20 which is provided with cutting blades and placed above the conveying section 13 and in the vicinity of the position of its end of encircling movement, so as to be apart from this end of the conveying section 13; and a second vertical belt conveyor 30 having a suspension section 33 which is placed oppositely to the suspension section 14 while interposing a space S between them and subjected to encircling movement so that the opposite side to the suspension section 14 moves upward, a conveying section 34 and a number of projections 32 formed on the outer peripheral surface, wherein, in the space S, while allowing contents W released after the bag breaking to fall, the contents W are almost completely broken by the upwardly moving projections 32 of the second vertical belt conveyor 30.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for breaking a bag in which various wastes discharged from homes and offices are packed, and releasing a tightening cord of a compressed baler to release the baler. The present invention relates to a bag-breaking machine for unloading waste.

[0002]

2. Description of the Related Art In recent years, the environment surrounding waste has changed,
"Act on Promotion of Use of Recycled Resources", June 1995
With the promulgation of the “Law on the Promotion of Separated Collection and Recycling of Containers and Packaging Related to Containers and Packaging (Container and Packaging Recycling Law)” in March, the recycling of waste has been promoted, and the waste that has been stable Has also been changed to a management type, making it difficult to perform conventional easy landfill processing. Separation of small and medium-sized materials to be treated, especially mixed wastes, resulting from crushing or the like due to such a change in living environment has become an important issue.

[0003] In general waste, lightweight materials, such as paper, cloth, plastic, and wood, are mostly flammable organic materials.
Heavy objects, such as metals, glass, and stone materials, are often incombustible inorganic substances, and therefore are often sorted by weight. Bagged wastes from daily life and business activities are also being separated and reused as resources after collection. Therefore, it is necessary to separate the bagged waste by material after collection by using various sorters. For that purpose, it is important to develop a bag-breaking machine for taking out the contents from the bags and unpacking them.

[0004]

FIG. 7 shows a bag breaking machine 50 already proposed by the present applicant in a separate application. This bag breaking machine has an upper inlet formed by a hopper 51 and a lower opening. 50A having a swingable small inclined side plate 52 and a fixed side plate 53 forming a processing space having a tapered shape.
In the casing, there is provided a bag-breaking rotor 50B having a long blade-shaped bag-breaking blade 54 attached to the lower part thereof around the cylindrical shaft 55 by displacing the blade in a circumferential direction by 90 degrees in the axial direction.
Are arranged to be driven to rotate in the direction of arrow R, and the inclined side plate 52 is elastically urged by the spring cylinder 56 so as to approach the long blade-shaped bag-breaking blade 54. In this bag breaking machine, the rotor 5
The sword-shaped bag-breaking blade 54 of 0B receives the dust bag between it and the small inclined side plate 52 that is elastically urged, and cuts by rotating.

[0005] The above-described bag breaking machine has been well-received because of its simple structure and few failures. However, wastes from homes and business establishments include lightweight scraps, such as garbage and paper scraps, metal products such as pots and pans, small electrical products such as toasters and small TVs, wall clocks and scales, etc. And various kinds of wastes such as carpets and jutan. The blade 54 of the bag breaking machine 50 cannot open a garbage bag containing hard metal parts and the like, while elastically urged a flexible garbage bag that is mostly made of only paper, cloth, and plastic sheets. In some cases, even if an attempt was made to push and cut between the small inclined side plates 52, the bag was pushed down without sufficiently breaking the bag.

The present invention has been made in view of the above-mentioned drawbacks of the bag-breaking machine, and provides a bag-breaking machine capable of efficiently tearing the bag, taking out the contents, and unraveling even if the bag contains a metal product or a hard material. It is assumed that.

[0007]

SUMMARY OF THE INVENTION A bag breaking machine according to the present invention is a pair of vertical conveyors in which a bag or a fastening cord is cut between a carry-in conveyor and a bag-breaking means with a blade, and a conveyor surface is arranged so as to face each other. Drop the waste in the bag into the gap between them, take out the waste from the bag with a number of protrusions provided on the conveyor surface, unravel it, and remove the bag fragments and strings by the protrusion on the conveyor surface that moves up either. It is locked and transported upward to separate bag fragments and the like from the contents.

In the bag-breaking machine of the present invention, the bag-breaking blade scratches the swelling bag or the bag swollen with dust without particularly cutting or biting the waste of the baler or bag. The processing is mainly performed by cutting and extracting the contents.On the contrary, even if it is a flexible baler consisting mostly of paper, cloth or plastic sheet, the bag-breaking blade scratches and tears off the string and is almost complete The soft contents such as bags and cords can be separately collected using a conveyor. Since the bag breaking machine of the present invention utilizes a conveyor, continuous operation is possible. And even if hard metal parts or materials that do not have blades are mixed, the bag-breaking blade does not bite, which reduces blade damage, greatly increases durability, and reduces maintenance. An easy bag breaking machine can be provided.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A bag breaking machine according to the present invention has a bag breaking section provided with a blade breaking means with a blade for breaking a bag containing waste containing waste, and a bag containing a waste in the bag breaking section. A carry-in conveyor having a number of protrusions on the upper surface of the conveyor that moves to convey the part, and a first vertical conveyor provided below the carry-in conveyor near the bag breaking portion and having a number of protrusions on the outer peripheral surface, A second vertical conveyor having at least a hanging portion which is opposed to a downwardly moving belt surface of the first vertical conveyor with a space therebetween and circulates so that the facing surface moves upward, and has a large number of projections on an outer peripheral surface thereof; And a vertical conveyor. The contents released after the bag breaking by the above bag breaking means,
While dropping into the space between the first vertical conveyor and the second vertical conveyor, the plurality of protrusions moving up and down between the opposing conveyors almost completely disentangles,
In addition, the separated bags are transported upward by a large number of protrusions of the vertically moving vertical belt.

[0010] In this bag breaking machine, balers and bags containing waste are
It is fed into the bag-breaking section in a slip-free state by a carry-in conveyor having a large number of projections on the outer peripheral surface, and then the bag swelled with a baler fastening string or dust is scratched off by a bag-breaking means with a blade. Next, the baler and the bag with waste are dropped into the gap between the first vertical conveyor and the second vertical conveyor, and when both conveyors are reciprocated in opposite directions, the large number of projections cause a large protrusion. Objects can be released almost completely by unraveling the contents while turning them at the bottom of both vertical conveyors.

Furthermore, it is possible to remove the bag and the cord separated by the protrusion of the second vertical conveyor moving upward, and collect the waste separately from the waste. When the first vertical conveyor also rotates upward like the second vertical conveyor, it lifts the separated flexible material such as a string or a bag to promote separation of the solid material which is easy to fall, and has a speed difference. In this case, a breaking action is added. In this way, the processing is mainly performed by scraping the fastening cord of the bag or the baler and taking out the contents by the relative movement of the projections between the opposing conveyors,
The contents can be completely disentangled and collected, and even if hard metal parts or objects with no blades are mixed in, the bag-breaking blade does not bite and the blade can be less damaged.

The first vertical conveyor may be integrally formed as a hanging part of the carry-in conveyor, or may be provided separately from the carry-in conveyor. Preferably, the first vertical conveyor is integrally formed as a hanging part of the carry-in conveyor, the belt on the opposite side of the hanging part moves downward, and the protrusion of the belt moves on the working belt of the second moving vertical conveyor. Engage with the protrusions to strengthen the loosening action.

When the first vertical conveyor is provided separately from the carry-in conveyor, the circumferential direction and speed of the first vertical conveyor can be set separately from the carry-in conveyor. In particular, when the first vertical conveyor is moved upward as in the upward movement of the second vertical conveyor, the release baler and the retention time of the waste in the interval space are lengthened, the unraveling is sufficiently performed, and the bag is broken. Sufficient hooking of the separated bags and strings by the projections of both conveyors is also performed sufficiently.

The second vertical conveyor preferably has a horizontal or inclined discharge portion continuously above the hanging portion. In this case, a removal position is set at a circumferentially folded portion of the discharge portion. In this position, it is possible to remove a bag or a string which is separated when the bag is broken and is conveyed by the belt projection. In particular, when it is better to separate bags and strings separated at the time of bag breaking differently from the contents waste, they can be separated and collected at the removal position.

The hanging parts of the first vertical conveyor and the second vertical conveyor can be arranged so that one or both can be swung so that the distance of the spacing between them can be changed by an adjusting device. preferable. In this way, depending on the size of the baler and the bag containing the waste, and depending on the required degree of release after the bag is broken, the spacing between the two hanging parts is changed by the adjusting device, and the required release can be performed. it can.

Preferably, one or both of the first vertical conveyor and the second vertical conveyor are capable of changing their circulating speed. The feed speed and relative speed of each conveyor are controlled by using a variable speed motor as the motor for driving the conveyor, and the conveyor speed can be changed according to the degree of difficulty in bag breaking and unraveling, and according to the processing amount. it can.

Preferably, one or both of the first vertical conveyor and the second vertical conveyor vibrate their opposing belts with a vibrating device. Vibration of the opposing belt facilitates unraveling after bag breakage, and also facilitates removal of waste entangled with the projections.

In the above-mentioned removal position of the second vertical conveyor,
An injection device for injecting pressurized air for removing a bag or a string separated from the protrusion of the second vertical conveyor after the bag is broken can be provided. Further, a comb-tooth device for removing the bag or the string by passing through the protrusion may be provided. These can be collected and removed by removing the bag or the cord, which has been conveyed to the removal position by the projection of the second vertical conveyor, from the projection by the compressed air injected from the injection device or the comb-teeth device through which the projection passes. Can be. Both the injection device and the comb device can be provided, and the separation of the bag and the string can be effectively ensured.

It is preferable that the bag breaking means is supported by an elastic member so as to be movable up and down. If it is elastically supported, the bag breaking means can easily change the height setting of the bag breaking means from the carry-in conveyor even if the size of the baler or the waste bag greatly changes. The difference is absorbed by the elasticity, and the bag containing the baler and the waste is surely broken by a large number of blades on the peripheral surface of the rotor and the conveyor. As such a bag-breaking means with a blade, a rotor provided with a large number of bag-breaking blades on a peripheral surface rotating in a direction opposite to a circumferential movement direction of the carry-in conveyor can be used. Further, the bag-breaking means with blades may be a conveyor provided with a large number of bag-breaking blades on a peripheral surface which revolves in a direction opposite to a peripheral direction of the carry-in conveyor.

[0020]

FIG. 1 shows an example of a waste bag breaking machine 1 according to an embodiment of the present invention, in which a first vertical belt conveyor 10 is integrated with a carry-in conveyor. One vertical belt conveyor 10 receives a waste bag B containing balers and various wastes at one end, and a bag breaking device 20.
The belts 111 and 141 are provided with a carry-in portion 13 for carrying the bag to the bag breaking portion at the other end where the belts 111 and 141 are provided.
Having a large number of protrusions 12 on the outer peripheral surface thereof,
Above the vicinity of the bending position between the hanging portion 14 and the hanging portion 14, a bag breaking device 20 with a blade is spaced.

The second vertical belt conveyor 30 is provided with a hanging portion 33 facing the hanging portion 14 of the first vertical belt conveyor 10 with a space S therebetween. , A substantially horizontal discharge section 34 is integrally formed. The second vertical belt conveyor 30 also has a number of protrusions 32 arranged on the outer peripheral surface of the belt 31. First
The opposite side belt 141 of the hanging portion 14 of the vertical belt conveyor 10 moves downward as described above,
Is set so that the opposing belt 331 of the hanging portion 33 of the vertical belt conveyor 30 moves upward (arrow A2).

The hanging part 1 of the first vertical belt conveyor 10
4 and the hanging portion 33 of the second vertical belt conveyor 30, an interval space S is provided. The interval space S allows the contents released after the bag break to drop while dropping the second vertical belt conveyor. A gap required for almost complete release is set by a large number of protrusions 32 moving upwards 30.

In the first vertical belt conveyor 10, the drive support roller 15a at one end is moved in the direction of arrow A1 by the inverter-controlled variable-speed motor M1 with a speed reducer so that the opposing belt 141 of the hanging portion 14 moves in the direction of arrow A1. Is driven. As shown in FIG. 1, a first vertical belt conveyor 10
This hanging portion 14 is provided with rollers 15b and 15c at bending positions.
By moving the supporting roller 15d at the other end part back and forth by the spacing adjusting device 16 with the fulcrum as a fulcrum, the inclination angle of the belt of the hanging portion 14 can be changed, and the spacing space S can be adjusted according to the degree of release. Like that. As the gap adjusting device 16, a means that can be pushed and pulled back and forth, for example, an electric cylinder, an electromagnetic actuator, or a screw jack is adopted.

In the example shown in FIG. 1, a vibrating device 17 is provided below the facing side belt 141 of the hanging part 14, and the bag is broken by vibrating the facing side belt 141 of the hanging part 14. Is facilitated, and removal of objects entangled with the protrusion 12 is facilitated. As shown in an example in FIG. 2, the vibrating device 17 is supported by a machine base B via a spring 17b, and an elastic roll 17a that supports the opposing belt 141 from behind, and vibrates in contact with the roll 17a. It comprises a rotating cam 17c and a cam rotation drive motor M2. The rotation of the rotation cam 17c causes the support roll 17a to rotate.
Is vibrated back and forth, and the opposing belt 141 is shaken.

As shown in FIG. 1, the bag breaking device 20 includes a support frame 23 elastically supported by a spring 22 so as to be movable and set by an adjusting device 21 such as an electric cylinder or a screw jack supported on the machine base B. A relatively large roll 24 rotatably supported by the support frame 23, a large number of triangular shark-toothed bag-breaking blades 25 provided on the peripheral surface thereof, and a roll 2
4 comprises a motor M3 with a variable speed reducer for driving the upper surface belt 111 of the loading section 13 to rotate in the direction A3 opposite to the direction of movement of the arrow A1.

When the size of the baler or the waste bag B greatly changes, the height of the roll 24 from the upper surface belt 111 of the carry-in section 13 is changed by the adjusting device 21 and the size of the roll 24 is slightly increased. The difference is absorbed by the elasticity of the spring 22, and the bag B containing the baler and the waste is reliably broken by the bag breaking blade 25 of the rotor 24 and the numerous protrusions 12 of the upper surface belt 111.

In the second vertical belt conveyor 30, the opposite side belt 331 of the hanging portion 33 is substantially vertical in the illustrated example, but can be installed in an inclined state. Furthermore, the hanging part 1 of the first vertical belt conveyor 10
Like FIG. 4, it can be arranged so that the inclination can be adjusted. Second
The belt 31 of the vertical belt conveyor 30 is wound around a rotary drive roll 35a driven by a motor M1 with a variable speed reducer, support rolls 25b and 35c at bending positions, and a support roll 35d at a free end. Has been passed.

The protrusion 32 provided on the outer peripheral surface of the belt 31 has a relatively elongated shape so that the string or the bag b separated by the bag break can be hooked and conveyed. In order to improve the separation of the bag b, as shown in FIG. 4, the tip portion 32a can be bent and rounded. At the folded position at the end of the unloading portion 34, comb teeth 36 are provided to pass through the projections 32 so as to remove the bag b and the string carried by the projections 32. There is also provided an injection device 37 for collecting the bags b and the cords by injection of pressurized air.

In addition to the removal of the bag b and the string, the flexible members such as various sheets and cloths are separated by the projections 32 of the second vertical belt conveyor 30 and conveyed upward to be collected at the removal position, so that the interval is reduced. Solid matter W that easily rolls down from the space S, for example, bottles, bottles, cans, containers, wood, stones, batteries, etc., can be sorted and dropped.
And take it out. By inclining the conveyor 40, a roll sorting device can be used, and wood and the like can be sorted from the above-mentioned easily rollable items.

In another embodiment shown in FIG. 3, the bag breaking machine 2 comprises
The bag-breaking device 20 'is composed of a conveyor 20' provided with a large number of shark-shaped bag-breaking blades 25 on the circumferential surface of a belt 27 which rotates in a direction A4 opposite to the circumferential direction A1 of the first vertical belt conveyor 10. ing.

The bag-breaking device 20 'is supported by an adjusting device 21 such as an electric cylinder or a screw jack supported on the machine base B.
3, a relatively large roll 24 rotatably supported by the support frame 23, a rotary drive roll 28, and a large number of rolls provided on a peripheral surface of a belt 27 wound around the rolls 24 and 28. Shark tooth-shaped bag-breaking blade 25 and belt 27
Is driven in a direction A4 opposite to the moving direction of the arrow A1 of the belt 111 of the loading section by a variable speed motor M3 with a reducer.
This configuration has an advantage that it can cope with a change in size of the baler or the waste bag B.

The bag breaking machine 3 of another embodiment shown in FIG.
Is different from the bag breaking machine 1 in that the first vertical belt conveyor is made independent from the carry-in conveyor 13. In this embodiment, the circumferential direction of the belt 41 of the first vertical belt conveyor 40 can be set separately from the carry-in belt conveyor 10 ', and the hanging portion 44 of the first vertical belt conveyor 40 The belt 41 is set to circulate upward A5 in the same direction as the moving direction of the hanging portion 33 of the belt conveyor 30. Second vertical belt conveyor 3
When moving in the upward direction A5 like the moving direction A2 of 0,
The release time of the release baler and the waste in the interval space S is prolonged, the unraveling is sufficiently performed, and the bag b and the string projections 32 and 42 separated after the bag is broken are sufficiently hooked.

In this example, the first vertical belt conveyor 4
0 is a discharge section 40 extending further laterally from its upper end.
a, and removal of the bag b and the string from the projections 32 and 42 is performed at the discharge portion 40a of the first vertical belt conveyor 40.
As described above, the comb teeth 36 passing through the projections 42,
An injection device 37 is provided for collecting the bags b and the strings received by the comb teeth 36 by injection of compressed air.

The bag breaking means 20 includes the roll 2 of the above embodiment.
4 and a belt 27 as shown in FIG.
A plurality of arrays of tear blades 44 may be utilized (FIG. 6 shows only three rows of tear blades 44). The blade body 44C of each slicing blade 44 is pivotally supported by a lateral support bar 44B so that the saw blade 44D faces downward, the handle 44A faces upstream, and the handle 44C moves vertically.
A vertical extension / contraction cylinder 45A
And is supported by hanging. Each cylinder 45A
Is suspended from the transverse beam 45C via a spring 45B, so that each of the cutting blades 44 has its sawtooth 44D arranged toward the upper surface of the carry-in conveyor of the first vertical belt conveyor 10. Saw tooth 44D of blade body 44C
, The point of which is directed to the upstream side,
The saw blade 44D can make the bag carried by 11 thin and make sure that the bag is torn and broken.

[0035]

According to the bag breaking machine of the present invention, the bag is cut by the carry-in conveyor for carrying the baler and the bag containing the waste and the bag breaking blade of the bag breaking portion, and the first rotating and revolving machine has a large number of projections on the outer peripheral surface. The contents of the bag are unraveled and separated from the bag in the space between the vertical conveyor of the above and the hanging part of the second vertical conveyor facing the same. And can be easily separated. Even if a lightweight baler is mixed, it can be easily unraveled and collected. Since this apparatus uses a conveyor, it can be operated continuously and has excellent durability.

If the first vertical conveyor is integrated with the carry-in conveyor, the unraveling action is enhanced by the ironing between the protrusions of the hanging belt on the opposite side of the hanging part and the protrusions of the opposite side belt of the second vertical conveyor moving upward. be able to. If the first vertical conveyor is provided separately from the carry-in conveyor, the moving speeds of the first vertical conveyor and the carry-in conveyor can be set separately, and the release baler and waste in the interval space can be set. The residence time is prolonged, the unraveling is sufficiently performed, and the bag and the string separated after the rupture of the bag are sufficiently caught by the projections of both conveyors.

If the second vertical conveyor is provided with a horizontal or inclined discharge part continuously above the hanging part, the discharge part is separated at the time of the bag breakage and conveyed by the belt protrusion at the peripheral turning-back part. Bags and cords can be removed at the end of the belt.

The hanging parts of the first vertical conveyor and the second vertical conveyor, if one or both of them can be swung so that the space between them can be changed by an adjusting device, can be a baler or a waste. Depending on the size of the bag containing the object and the required degree of breaking after the bag is broken, the spacing between the two hanging parts can be changed by the adjusting device, and the necessary breaking can be performed.

If one or both of the first vertical conveyor and the second vertical conveyor can be changed in speed by using a variable speed motor, the first vertical conveyor and the second vertical conveyor can be used in accordance with the degree of difficulty of bag breakage or opening of the baler. The feed speed and relative speed of each conveyor can be changed by a variable speed motor according to the throughput.

If one or both of the first vertical conveyor and the second vertical conveyor vibrate their opposing belts by the vibrating device, the vibrations of the opposing belts in the hanging portion cause breakage. The unraveling after the bag can be facilitated, and the removal of the object entangled with the projection becomes easy.

The second vertical conveyor is provided with a removal position at the tip of the carry-out conveyor, and is provided with a pressurized air for removing the bags and cords separated after the bag is broken from the protrusions of the second vertical conveyor. And / or a comb-tooth device that removes a bag or a string by passing through the above-mentioned projections, is transported to the removal position by the projections of the second vertical conveyor. The bag and the string are compressed air injected from the injection device, and the comb device through which the projections pass,
Removed from the protrusion and can be easily collected.

The bag-breaking means is elastically supported so that it can be set up and down, and uses a rotor provided with a large number of bag-breaking blades on its peripheral surface rotating in the direction opposite to the circumferential direction of the carry-in conveyor, or If you use a conveyor with a large number of bag-breaking blades on the peripheral surface that circulates in the opposite direction to the direction of the carry-in conveyor, the bag can be broken even if the size of the baler or waste bag changes significantly. The height of the means from the carry-in conveyor can be changed, and the slight difference in size is absorbed by the elastic displacement of the elastic body. The bag is broken by the bag breaking blade.

[Brief description of the drawings]

FIG. 1 is a schematic side view showing a waste bag breaking machine according to an embodiment of the present invention.

FIG. 2 is a schematic side view of a vibrating device used for a bag breaker for waste according to an embodiment of the present invention.

FIG. 3 is a side view of bag breaking means using a conveyor used in a bag breaking machine according to another embodiment of the present invention.

FIG. 4 is an illustration of another type of protrusion of the second vertical conveyor of the bag breaking machine according to the embodiment of the present invention.

FIG. 5 is a side view of a bag breaking machine according to another embodiment of the present invention.

FIG. 6 is a conceptual partially enlarged perspective view of a bag breaking section applied to a bag breaking machine according to another embodiment of the present invention.

FIG. 7 is a sectional view showing a conventional bag breaking machine.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Bag-breaking machine of a typical embodiment 10 First vertical belt conveyor 12 Projection 13 Carry-in part 14 Hanging part 16 Adjustment device of interval space 17 Vibration device 20 Bag-breaking means 25 Bag-breaking blade 30 Second vertical conveyor 32 Projection 33 Hanging part 34 Carrying part 35 Shark-tooth-shaped bag-breaking blade 36 Comb-tooth device 37 Injection device 40 First vertical conveyor B Waste bag M1 Variable speed motor S Interval space

──────────────────────────────────────────────────の Continued on the front page (51) Int.Cl. ⁷ Identification code FI Theme coat ゛ (Reference) B02C 23/00 B02C 23/00 D 23/08 23/08 A B65B 69/00 101 B65B 69/00 101

Claims (8)

[Claims] 1. A bag-breaking section provided with a bag-breaking means with a blade for breaking a bag containing waste containing a waste, and a conveyer circulating to transport the bag containing the waste to the bag-breaking section. A carry-in conveyor having a large number of protrusions on the upper surface, and provided below the carry-in conveyor near the bag breaking portion,
A first vertical conveyor having a number of protrusions on an outer peripheral surface, at least a droop that faces a lower moving surface of the first vertical conveyor with a space therebetween, and moves so that the facing surface moves upward; And a second vertical conveyor having a large number of protrusions on the outer peripheral surface thereof. The contents broken by the bag breaking means described above are separated by the first vertical conveyor and the second vertical conveyor. While being dropped into the space between the hanging parts, the contents are almost completely disentangled by the above-mentioned number of projections moving on the second vertical conveyor,
A bag breaking machine wherein the separated bags are transported upward by the plurality of projections. 2. The bag breaking machine according to claim 1, wherein the first vertical conveyor is provided integrally with the carry-in conveyor as a hanging part thereof or separately therefrom. 3. A second vertical conveyor has a horizontal or inclined discharge portion continuously above the hanging portion, and is separated by a belt protrusion at a peripheral turning-back portion of the discharge portion when the bag is broken. The bag breaking machine according to claim 1, wherein a removing position for removing the bag or the string is set. 4. A method according to claim 1, wherein one or both of the hanging parts of the first vertical conveyor and the second vertical conveyor are configured to be swingable so as to change the space by the adjusting device. Item 7. The bag breaking machine according to Item 1. 5. The bag breaking machine according to claim 1, wherein one or both of the first vertical conveyor and the second vertical conveyor can be rotated by a variable speed motor for driving the conveyor. Machine. 6. The first vertical conveyor and the second vertical conveyor, wherein one or both of the opposite belts are
The bag breaking machine according to claim 1, wherein the bag is broken by a vibration device. 7. An ejection device for injecting pressurized air for removing a bag or a cord separated from the protrusion of the second vertical conveyor after the bag is broken, wherein the protrusion is provided at the removal position of the second vertical conveyor. The bag breaking machine according to claim 3, further comprising one or both of a comb and a comb-teeth device for removing the bag and the string by passing the bag. 8. A rotor having a plurality of bag-breaking blades on its peripheral surface, which is elastically supported so that the bag-breaking means can be set to move up and down, and which rotates or slides in a direction opposite to the circumferential direction of the carry-in conveyor. The bag breaking machine according to claim 1, which is a conveyor.