JP2006061752A - Bag breaking machine and its driving method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a bag breaking machine which is constituted of one rotary shaft cutter by simplifying constitution of the bag breaking machine for breaking various kinds of bag bodies and which has constitution for eliminating the fault of torn bag pieces after breaking the bag to be tangled with the cutter and to provide the driving method of the bag breaking machine. <P>SOLUTION: A pair of cutters (rectilinear cutters) are arranged in the diameter direction to the rotary shaft and a plurality of movable side cutters are arranged while shifting them by 90°, for example, in the rotary shaft direction. Further bar-shaped catchers which have spring action and are formed of a bar material facing the movable side cutters from a horizontal direction are arranged at predetermined intervals. By executing swinging drive of the cutters without rotation, a bag body packed with cans, bottles or the like, for example, can be efficiently caught and broken and broken bag pieces can be easily separated from the cans, the bottles or the like without entanglement of broken bag pieces with the rotary shaft. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  This invention is, for example, mixed garbage collected in various bags as household waste and industrial waste, and collected in a waste disposal site, separated and collected according to the type of combustible waste and resource waste, or bottled in a bag, When separating and collecting aluminum cans, steel cans, plastic containers, etc., by type of material, the bags that are used as pre-treatment for these separation operations are crushed (hereinafter referred to as broken bags), the contents are taken out, and the crushed bag fragments The present invention relates to a bag breaker that facilitates the separation and removal operation between the bag and the package body and its driving method.

  In order to efficiently process large amounts of bagged garbage discharged from ordinary households, business establishments, and public facilities, first, the bags are mechanically broken, and then the garbage is separated and collected by type. Conventionally, as a bag breaking machine for breaking a bag body, a machine that tears a bag with a large number of cutting blades provided around two rotating shafts that are installed in parallel and rotate inward with respect to each other has been proposed (Patent Document 1). )It had been.

  The conventional bag-breaking machine has a drawback that the bag pieces torn by the cutting blade are entangled. An attempt was made to improve the bag-breaking machine to eliminate this drawback. As one of them, a plurality of discs are respectively opposed to two rotating shafts installed in parallel, a blade portion is formed around the disc, and a plurality of triangular blades are arranged. There has been proposed (Patent Document 2) which rotates inward in opposite directions with different rotation speeds.

  This bag-breaking machine can prevent torn bag fragments from getting entangled with the disk, but when breaking a bag containing bottles, steel cans, etc., solids are placed between the blade edges of the disk on both sides. There is a risk of pinching and failure. In addition, two rotational axes are required, and the rotational speeds must be different from each other.

In addition, a large number of sag-breaking blades are arranged on the circumferential surface of the rotor, an inclined side plate that forms a processing space facing the rotor is opposed to the rotor, and a lower portion of the inclined side plate is moved to the rotor side by a spring. An inclined bag-breaking machine (Patent Document 3) and a tilting presser plate paired with a rotating body in which a plurality of discs having a large number of cutting blades arranged radially on a support cylinder are mounted on a single rotating shaft at regular intervals. A bag breaker has been proposed in which a lower portion of an inclined pressure plate is urged toward a disk by a spring.
JP 2004-58042 A JP-A-7-1388 JP-A-8-84938

  In these conventional bag breakers, it is necessary to adjust the inclination angle and spring strength of the inclined side plate and the inclined pressing plate depending on the size of the bag body and the contents, and it takes time to set the spring force. Further, there is a drawback that the bag pieces torn by the cutting blade are easily entangled, and the processing capacity is easily lowered or stopped.

  In addition, the conventional bag breaking machine consisting of two rotating shafts, which has been improved in order to eliminate the drawback of the bag fragments torn by the cutting blade, is complicated and compact in order to change the rotational speed of the left and right rotating shafts. There is a disadvantage that cannot be done.

  Furthermore, a conventional bag breaker consisting of a single rotary shaft having a plurality of cutting blades arranged radially and a single rotary shaft consisting of a pressing plate provided on the rotary shaft is a two-shaft rotary shaft consisting of two rotary shafts. Although the mechanism can be simplified compared to the bag breaking machine, there is a drawback that it is not possible to prevent the torn bag fragments from being entangled with the cutting blade.

  In view of the above-mentioned present situation, the present invention simplifies the configuration of the bag breaking machine and is composed of a single rotating shaft, and the bag breaking machine having a configuration that eliminates the disadvantage that the torn bag fragments after the bag breaking are entangled. The object is to provide a driving method.

  In the case of a configuration having a single axis of rotation, the inventors capture the bag body and efficiently break the bag, regardless of whether the bag contents are separated and collected by type or material type. As a result of various examinations for the purpose of arranging the movable blades and the like that can smoothly separate the bag fragments after the bag breakage and the bag contents, a pair of blades in the diameter direction with respect to the rotation axis ( And a plurality of the movable side cutters are displaced by, for example, 90 degrees in the rotation axis direction, and bar catchers having a spring action with a bar material facing the movable side cutters from the horizontal direction at predetermined intervals. By arranging and driving the blades in a swinging manner instead of rotating, for example, a bag body filled with cans, bottles, etc. can be efficiently broken, and the bag fragments can be entangled with the rotating shaft, It was found that can be separated.

  In addition, the inventors of the bag breaking machine having the above-described configuration, by using a fixed-side cutter that is fixedly arranged in the horizontal direction instead of the bar-shaped catcher, breaks a bag body filled with a plastic material, and bag fragments and plastic. It has been found that the separation can be carried out efficiently.

  Further, the inventors have studied the driving method of the movable cutter in the bag breaker having the above-described configuration, and as a result, the basic operation is to swing and drive in various patterns with the right rotation and the left rotation as one pattern. By changing the swing angle according to the cans, bottles, plastic materials, etc. stored in the bag, the bag body can be broken efficiently, and the bag fragments can be separated from the garbage without the bag fragments getting entangled with the rotating shaft. We have found out that this is possible and have completed the present invention.

  That is, the present invention provides a bag breaking chamber formed of a rectangular frame and a rotating body surface pivotally supported between one opposing wall surfaces of the bag breaking chamber so as to project radially from the rotation axis and the radial direction is required in the axial direction. A movable-side cutter with a plurality of plate-like cutters protruding so as to deviate from the angle, a plurality of rod-shaped catchers that horizontally arrange the rod from the other opposing wall surface of the bag breaking chamber, or a plurality of plates that are arranged with the plate thickness protruding horizontally A movable blade that has a plate-shaped blade or a fixed-side blade arranged by combining a bar-shaped catcher and a plate-shaped blade, and a drive control means for driving the rotating body to rotate in a forward or reverse direction, and meshing at a predetermined interval; A bag breaker that breaks a bag between a plurality of plate-like blades on a fixed side or between a plate-like blade and a rod-like catcher.

  Further, according to the present invention, in the bag-breaking machine having the above-described configuration, the drive control means has a load sensor in the rotational drive source, stops the driving of the rotating body during an excessive load, and moves the movable side cutter during normal operation. A plurality of forward / reverse rotations in which the forward / reverse rotation pattern is rotated by one unit from the horizontal reference point and then rotated in the opposite direction by one unit, and the forward / reverse swing angle is changed for each unit. A bag breaker driving method characterized in that a pattern is repeatedly driven to break a bag body.

  According to this invention, it is composed of one blade rotating body and a rod-like catcher or a group of fixed blades provided on both sides in the rotation axis direction in the center of the bag breaking chamber, the mechanism is simplified, and the rotating body is rotated forward.・ By swinging to reverse rotation, the bag body dropped into the bag breaking chamber is reliably captured, and the bag breaking space formed on both sides of the movable side cutter is broken alternately and continuously efficiently. be able to.

  In addition, according to the present invention, since the bags stacked in the hopper above the bag breaking chamber are pushed up by the movable side cutter when the rotating body swings, the bridge phenomenon of the bag can be prevented from occurring. With the configuration in which one rotating body is swung, bag fragments after the bag breakage do not get entangled with the rotating body, the rod-shaped catcher, and the stationary blade.

  Furthermore, according to the present invention, the structure that combines the movable-side cutter that is oscillated and the elastic bar-shaped catcher breaks the bag body containing a solid material such as a can or a bottle without destroying the solid material. In the structure in which the movable side cutter and the fixed cutter which can be bagged and are driven to swing are combined, a flexible bag containing waste plastic material can be efficiently broken by the cooperation of the movable side and the fixed side cutter.

  A bag breaking machine according to the present invention has a movable side having a plurality of plate-like blades arranged in a bag breaking chamber made of a rectangular frame so as to project radially from the surface of a rotating body and to be displaced by a required angle in the axial direction. A plate having a plurality of rod-like catchers or a sharp blade edge portion having a spring mechanism that is horizontally supported from the wall surface of the bag breaking chamber by swinging and rotating the blade horizontally in various forward and reverse patterns. The bag body is captured between the fixed-side blade made of a blade and is broken.

  The configuration and driving method of the bag breaker according to the present invention will be described in detail with reference to the drawings. FIG. 1 is an explanatory side view as seen from the shaft end side of the rotating body of the bag-breaking machine, and FIG. 2 is an explanatory front view in the longitudinal axis direction of the rotating body.

  The bag-breaking machine 1 has a bag-breaking chamber 2 formed of a rectangular frame as a main body, a hopper 3 is provided on the upper surface of the bag-breaking chamber 2, and a rotating body 10 is horizontally disposed between one opposing wall surfaces of the bag-breaking chamber 2. The bracket 4 hanging from the inclined surface of the hopper 3 is pivotally supported to be rotatable, and a fixed blade is provided on the other opposing wall surface of the bag breaking chamber 2 so that the bag body dropped from the hopper 3 is the bag breaking chamber 2. Thus, after the bag breakage, the bag is discharged from the discharge port 5 on the bottom of the opening of the bag breaking chamber 2.

  In the movable-side cutter 10, plate-like cutters 12 having a configuration in which the blade tips are aligned in the one-diameter direction of the rotating body 11 are arranged at predetermined intervals in the axis direction of the rotating body 11 so that the blade tips are shifted by 90 degrees. is there. The rotating body 11 is oscillated and rotated by an electric motor (not shown). In addition, the shape and number of the plate-like blades 12, the axial arrangement interval of the rotating body 11, the radiation angle of the blade edge, and the like are appropriately selected according to the bag body and the type of the stored item.

  The fixed-side cutter 20 employs a plurality of bar-shaped catchers 21 that project horizontally from the opposing wall surface. The bar-shaped catcher 21 has a structure in which the end portion of a spring steel bar is coil 22 and is housed in a box 23 and the other bar is inserted into the bag breaking chamber 2 horizontally. 3 is supported by a bracket 6 hanging from the inclined surface 3 and a bracket 7 provided on the outer wall of the bag breaking chamber 2.

  The operation of the bag breaker 1 having such a configuration will be described. First, as shown in FIG. 3A, in the case of the large capacity hopper 3, the bag body is charged by a shovel loader or the like and stacked in the hopper 3. At this time, a bridge of the bag body is generated in the hopper 3, but the action of pushing up the bag body as a workpiece upward by the movable side cutter 10 which is driven to swing and rotate works to prevent the bridge. it can.

  As shown in FIGS. 3B and 3C, the bag-breaking action of the bag-breaking machine 1 is basically pushed by the movable cutter 10 and caught by a plurality of bar-shaped catchers 21 to be torn and destroyed. For example, if the movable side cutter 10 repeats pattern 1 of 90 degrees to the right, 90 degrees to the left, and pattern 2 of 180 degrees to the right and 180 degrees to the left, pattern 1 captures the bag by rotating to the right. It can be torn by left rotation, and by rotating both the left and right in pattern 2, the bag body can be pushed and broken, and when continuously operated, the tearing and breaking of the bag by push cutting proceed alternately or simultaneously. .

  The processing amount of the bag breaker 1 is basically determined by the operating peripheral speed of the movable side cutter 10, and for example, the rotating body 11 is driven by one geared motor and the speed is controlled by an inverter so as to match the processing work. Speed setting is possible. Also. The bag breaking rate is basically determined by the arrangement of the rod-shaped catchers 21. If there are many small bags in the contents of the bag body, the number of rows of the rod-shaped catchers 21 and the number of rows of the rod-shaped catchers 21 are further increased so that they will not slip through without being broken. Detailed adjustment of the number of stages is required.

  In other words, the bag-breaking resistance is applied by the bar-shaped catcher 21 by arranging a large number of bar-shaped catchers 21 having a restoring force to the original position in the width (axis) direction of the movable cutter 10 and arranging a plurality of rows in the dropping direction. The bag body fed by the plate-like cutter 12 hits or comes into contact with the rod-like catcher 21 and is stopped or decelerated, but the plate-like cutter 12 breaks the bag body or further pushes it forward.

  At this time, the bag body tries to pass through the bar-shaped catcher 21 against the restoring force to return the bar-shaped catcher 21 to the original position. In this process, the tip of the bar-shaped catcher 21 pierces the bag body and catches it. can do. In short, a large number of rod-shaped catchers 21 are arranged in the width (axis) direction of the movable side cutter 10, and each has a restoring force to the original position individually. It is possible to pierce any place.

  Therefore, the rod-like catcher 21 is intended to break a bag containing empty cans, bottles or plastic bottles. In particular, in the case of a bag containing empty cans or bottles, generally large foreign objects are mixed. Since there are many, the rod-shaped catcher 21 can bend and can flow a workpiece | work, and there exists an advantage by which an apparatus does not stop easily.

  Next, the structure which employ | adopted the plate-shaped blade 24 which has a sharp blade edge | tip as the fixed side blade 20 is demonstrated. FIG. 4 is an explanatory side view as seen from the shaft end side of the rotating body of the bag-breaking machine, and FIG. 5 is an explanatory front view of the rotating body in the longitudinal axis direction.

  As shown in FIGS. 1 and 2, the basic structure is such that the bag breaking machine 1 has a bag breaking chamber 2 as a main body, a hopper 3 provided on the upper surface, and a rotating body 10 disposed horizontally in the bag breaking chamber 2. The configuration in which the plate-like cutter 12 is provided radially on the surface 11 to form the movable-side cutter 10 is exactly the same, except that the plate-like cutter 24 is adopted as the fixed-side cutter 20.

  As shown in FIGS. 4 and 5, the plate-shaped blade 24 has an upper end on the outer wall of the bag breaking chamber 2 such that the plate thickness is horizontal, the plate width direction is vertical, and the sharp edge of the blade edge enters the bag breaking chamber 2. The upper end of the shaft 9 that is pivotally supported by the shaft 9 is fixed to a strip-shaped bracket 8 that hangs down. Here, three stages in the vertical direction in the bag breaking chamber 2 and two in the axial direction of the rotating body 11 are used. The stationary blade 20 is configured by alternately arranging one sheet and one sheet.

  Explaining the operation of the bag breaker 1 having such a configuration employing the plate-like blade 24, as shown in FIG. 4A, the movable body 10 that is driven to swing and rotate has the effect of pushing the bag body as a workpiece upward. It is possible to prevent the bag body from being bridged in the hopper 3.

  As shown in FIGS. 4B and 4C, the bag-breaking action of the bag-breaking machine 1 is basically pushed by the movable blade 10 and caught by a plurality of plate-shaped blades 24 to be torn and destroyed. For example, if the movable-side cutter 10 alternately repeats pattern 1 of 180 degrees to the right, 180 degrees to the left and pattern 2 of 360 degrees to the right and 360 degrees to the left, pattern 1 captures the bag by rotating to the right, The bag can be torn by left rotation, and by rotating both left and right in the pattern 2, the bag can be pushed and broken. When continuously operated, tearing and bag breaking by push cutting proceed alternately or simultaneously.

  By adopting such a plate-like blade 24, it is possible to efficiently break the bag body in which waste plastic or the like is accommodated. That is, a bag body containing waste plastic or the like is light and has little foreign matter mixed therein. Therefore, the rod-like catcher may be unable to be caught because both of them are bent, but the plate-like blade 24 is fixed and has an acute angle. When the movable-side cutter 10 has a cutting edge and is driven to swing in a pattern as described above, the bag can be efficiently captured and easily broken.

  Further, as shown in FIG. 7, the fixed-side cutter 20 employing the plate-like cutter 24 has a plurality of plate-like cutters 24 fixed to the grid-like bracket 8 and is pivotally supported on the upper end of the outer wall of the bag breaking chamber 2. By making the shaft 9 to be rotated when a large load is applied by the damper unit 30, the plate-shaped blade 24 group can be retracted from the bag breaking chamber 2. That is, in the bag body in which waste plastic or the like is accommodated, it is expected that a large foreign matter will be thrown in since the processing work is non-combustible material, which facilitates maintenance so that the apparatus does not frequently stop.

  In the bag breaker of the present invention, the drive control means is provided with a load sensor, for example, in the rotational drive source, and when the overload is caused by a large foreign matter or the like, the drive of the rotating body is stopped or reversed. It is good to perform control such as discharging. Also, during normal operation, as described above, the normal / reverse rotation pattern in which the movable side cutter is rotated by the required angle in one direction from the horizontal reference point and then the required angle is rotated in the opposite direction is defined as one unit. Control for repeating a plurality of forward / reverse patterns in which the moving angle is changed for each unit, or control for repeating a combination of a plurality of patterns can be performed.

The swing angle of the movable side cutter is preferably designed so that the angle can be changed by changing the operation time with a timer in order to mainly improve the bag breaking rate. The peripheral speed is preferably designed so that the speed can be changed by an inverter mainly for adjusting the processing amount. For example, in the apparatus example of the first embodiment that performs processing of 30 m ³ per hour, the peripheral speed of the oscillating blade is assumed to be 24 to 48 m / min.

  In addition, the drive control means changes the speed at which the rotating body swings and rotates (peripheral speed of the movable blade) according to the amount of load sensed by the load sensor, thereby increasing or decreasing the bag breaking amount of the bag. Assuming that the swing angle of the forward / reverse pattern is changed to a preset angle according to the amount of load detected by the load sensor, and that the drive is repeated with a combination of forward / reverse patterns with different swing angles. Assuming the range of change in conditions such as the type of garbage to be used, the size of the bag, and the amount of processing, etc., it is possible to perform programming so that the apparatus does not stop or the bag breakage is insufficient.

Example 1
The apparatus shown in FIGS. 8 and 9 has a configuration in which the bag breaking machine 1 shown in FIGS. 1 and 2 is assembled for actual operation, and the four corners of the upper part of the hopper 3 of the bag breaking machine 1 are supported by four columns 40. A rectangular inlet 41 is provided at the top of the hopper 3. That is, the bag breaker 1 is supported by the support column 40, installed so that the discharge port 5 of the bag breaker chamber 2 is at a required height position, and a belt conveyor for conveying the garbage after the bag breakage to the separation process. Can be disposed.

  One end of the rotating body 11 shaft of the bag-breaking machine 1 is connected to a drive inverter motor 43 via a speed reducer 42. The control panel 44 is configured to perform operations such as selection of a normal / reverse swing angle set in advance, rotation speed control by the inverter, and start / stop of operation.

The bag breaker 1 provided with a bar-shaped catcher that assumes a bag body in which a beverage can and a beverage bottle are accommodated has a pattern 1 of 90 degrees to the right and 90 degrees to the left as the swing driving pattern of the movable cutter. When the pattern 2 of 180 degrees on the right and 180 degrees on the left is alternately repeated, and the speed is controlled by the inverter motor 43 so that the peripheral speed of the blade is 24 to 48 m / min, an average of 30 m ³ It was found to have a processing capacity of / hr. This coincided with the calculation example described later.

It should be noted that the relationship between the amount of bag processing and the rate of bag breakage is such that if the amount of processing is increased, the bag will flow without breaking the bag, and conversely, if the bag is broken, the bag breaking time becomes longer and the relationship is opposite to each other. . In the bag breaking machine of Example 1, the bag breaking rate was 100% when operated at a throughput of 30 m ³ / h or less, but the bag breaking rate was 90% when the throughput was 40 m ³ / h. Further, it was confirmed that if the treatment amount was increased to 50 m ³ / h, the bag breaking rate decreased to 80%.

Assuming that the garbage composition is a beverage can, a beverage bottle, and a pet potter, a bag body with an apparent specific gravity X = 0.599 t / m ³ has a maximum processing weight W = 1.38 ton / h and a maximum processing volume Q = W × (1 ÷ X) As an example of the capacity calculation of the bag breaker that can be processed under the condition of 23.4 m ³ / h, the specifications of the oscillating blade of the blade rotating body, the cutting amount of the oscillating blade, the motor for driving the oscillating object An example of the calculation is shown.

The specifications of the movable blade cutter are as follows:
External shape: D = 0.9 m, Core diameter: d = 0.355 m,
Number of blade rows: M = 7 rows, maximum rotation speed: N = 16.9 R / M,
Blade pitch: P = 0.2 m, experimental coefficient: K = 0.12
Bag breaking coefficient: T = 100, mechanical efficiency: η = 0.9,
Bag breaking efficiency: μ = 0.8.

The cutting amount of the movable side cutter is
Q = (D−d) ÷ 2 × P × M × N × K × 60 = 46.42 (m ³ /h)>23.4 (m ³ / h),
The drive inverter motor output is
Kw = (T × N) ÷ (974η) × (M ÷ μ) × K = 2.02 Kw. Therefore, 2.2 Kw is selected.

Example 2
8 and 9, the structure shown in FIGS. 4 and 5 is used in the bag breaking machine 1 of the apparatus shown in FIG. 4, and assuming a bag body containing plastics, 180 degrees to the right and 180 degrees to the left. Oscillating drive control that alternately repeats pattern 1 of 360 degrees and pattern 2 of 360 degrees to the right and 360 degrees to the left, and selects the inverter motor output for driving so that the peripheral speed of the movable side cutter is 35 to 70 m / min. As a result, it was found that it has a processing capacity of 60 m ³ / hr on average.

  According to this invention, it is composed of one blade rotating body and a rod-like catcher or a group of fixed blades provided on both sides in the rotation axis direction in the center of the bag breaking chamber, the mechanism is simplified, and the rotating body is rotated forward.・ By swinging to reverse rotation, the bag body dropped into the bag breaking chamber is reliably captured, and the bag breaking space formed on both sides of the movable side cutter is broken alternately and continuously efficiently. be able to.

  In addition, according to the present invention, since the bags stacked in the hopper above the bag breaking chamber are pushed up by the movable side cutter when the rotating body swings, the bridge phenomenon of the bag can be prevented from occurring. With the configuration in which one rotating body is swung, bag fragments after the bag breakage do not get entangled with the rotating body, the rod-shaped catcher, and the stationary blade.

It is side surface explanatory drawing seen from the axial end side of the rotary body of the bag breaker by this invention. It is front explanatory drawing of the longitudinal axis direction of the rotary body of the bag breaker by this invention. AC is explanatory drawing explaining the bag breaking function of the bag body of the bag breaking machine by this invention. It is side surface explanatory drawing seen from the axial end side of the rotary body of the other bag-breaking machine by this invention. It is front explanatory drawing of the longitudinal axis direction of the rotary body of the other bag-breaking machine by this invention. AC is explanatory drawing explaining the bag breaking function of the bag body of the other bag breaking machine by this invention. It is side surface explanatory drawing seen from the axial end side of the rotary body of the other bag-breaking machine by this invention. It is front explanatory drawing of the longitudinal axis direction of the rotary body of the bag breaker of Example 1. FIG. It is side surface explanatory drawing seen from the shaft end side of the rotary body of the bag breaker of Example 1. FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Bag-breaking machine 2 Bag-breaking chamber 3 Hopper 4, 6, 7, 8 Bracket 5 Discharge port 9 Shaft 10 Movable cutter 11 Rotating body 12, 24 Plate cutter 20 Fixed cutter 21 Rod catcher 22 Coil 23 Box 30 Damper Unit 40 Post 41 Input slot 42 Reducer 43 Inverter motor 44 Control panel

Claims (10)

  A bag breakage chamber made of a rectangular frame and a rotating body surface pivotally supported between one opposing wall surfaces of the bag breakage chamber and projecting in a radial direction from the rotation axis, and a plurality of the radial directions are shifted by a required angle in the axial direction. A movable-side cutter having a plate-like cutter projecting, a fixed-side cutter comprising a plurality of rod-like catchers that horizontally arrange the rod from the other opposing wall surface of the bag breaking chamber, and a drive control means for driving the rotary body to swing and rotate A bag breaker that breaks a bag body between the plurality of plate-shaped blades and the fixed-side blades that are engaged with each other at a predetermined interval.   A bag breakage chamber made of a rectangular frame and a rotating body surface pivotally supported between one opposing wall surfaces of the bag breakage chamber and projecting in a radial direction from the rotation axis, and a plurality of the radial directions are shifted by a required angle in the axial direction. A movable-side cutter having a plate-like cutter projecting, a fixed-side cutter made of a plurality of plate-like cutters that are arranged so as to project the plate thickness horizontally from the other opposing wall surface of the bag breaking chamber, and a rotating body that is driven to swing and rotate. A bag breaker that breaks the bag body between the plurality of plate-like blades on the movable side and the fixed side that have drive control means and mesh at a predetermined interval.   A bag breakage chamber made of a rectangular frame and a rotating body surface pivotally supported between one opposing wall surfaces of the bag breakage chamber and projecting in a radial direction from the rotation axis, and a plurality of the radial directions are shifted by a required angle in the axial direction. Arranged in combination with a movable-side cutter projecting a plate-like cutter, a plurality of bar-shaped catchers horizontally arranged from the other opposing wall surface of the bag breaking chamber, and a plurality of plate-like cutters arranged to project the plate thickness horizontally. A fixed body cutter and a drive control means for swinging and rotating the rotating body, and a bag body between the movable blade and the fixed blade blades on the fixed side or between the plate blade and the bar-shaped catcher. Bag breaking machine to break the bag.   4. The bag-breaking machine according to claim 1 or 3, wherein the bar-shaped catcher has a spring mechanism in which a horizontally disposed bar material exhibits a large deflection and a high restoring force.   The bag-breaking machine according to claim 2 or 3, wherein the plate-shaped blade of the fixed-side blade has an acute blade edge portion.   The fixed-side cutter is located below the upper surface of the rotary body of the movable-side cutter, and the bar-like catcher or the plate-like cutter is arranged in a plurality of stages at predetermined intervals in the vertical direction, respectively. The bag-breaking machine described.   4. The bag-breaking machine according to claim 2, wherein the fixed-side cutter can be entirely or partly saved outside the bag-breaking chamber together with the wall surface holding the cutter or the holding part of the cutter.   4. The bag breaker according to claim 1, wherein the drive control means has a load sensor in a rotational drive source, stops driving of a rotating body when overloaded, and is movable during normal operation. A normal / reverse rotation pattern for rotating the required angle in one direction from the horizontal reference point and then rotating the required angle in the opposite direction is set as one unit, and the forward / reverse swing angle is changed for each unit. A driving method for a bag breaker that breaks the bag body by driving repeatedly in a normal / reverse pattern.   In accordance with an instruction to the drive control means or a load amount sensed by the load sensor, the speed at which the rotating body is oscillated and rotated (the peripheral speed of the movable blade) is changed to increase or decrease the bag breaking amount of the bag body. The driving method of the bag breaker according to claim 8.   Depending on the instruction to the drive control means or the load amount sensed by the load sensor, the swing angle of the forward / reverse pattern is changed to a preset angle and the combination of forward / reverse patterns with different swing angles is repeated The method for driving a bag-breaking machine according to claim 8.

Images