JPH1053231A - Bag breaking device - Google Patents

Abstract

(57) [Summary] [PROBLEMS] To surely break a bag by preventing an excessive supply of bags, and enabling to cope with bags of different sizes. A transport conveyor (8) is arranged in a lower part of a horizontally long frame (1) along a longitudinal direction. A fixed amount supply gate 11 is provided at a position on the side of the input port 5 provided at one end of the frame 1 so as to face the upper transfer surface 8a of the transfer conveyor 8. An elongated swing-type bag breaking machine 12 is provided downstream of the fixed supply gate 11. On the downstream side of the bag breaking machine 12, a primary rotary swing bag breaking machine 13 and a secondary rotary swing bag breaking machine 14 are assembled.

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 to break the above-mentioned plastic bag in order to make it easy to sort contents such as empty bottles and cans as recycled resources collected in a plastic bag. It is about.

[0002]

2. Description of the Related Art In recent years, recycling of resources has been attempted, and as one of them, the necessity of recycling empty bottles and empty cans has been increasing year by year.

[0003] Of the above-mentioned empty bottles and cans as recycled resources, those collected in a plastic bag need to be sorted after breaking the plastic bag in order to be recycled. Until then, the work of breaking the plastic bag was done manually, and there was a problem that required a great deal of labor.

For this reason, recently, a blade that swings independently has been provided above a transport conveyor in which the blade is assembled on the transport surface,
Alternatively, there has been proposed a bag-breaking apparatus in which a bag-breaking conveyor having a blade attached to a conveying surface is arranged vertically (Japanese Patent Laid-Open No. 6-55090).

[0005]

However, in the bag breaking device proposed above, when the swinging blade is used, the bag is completely broken in order to tear off the bag with the swinging blade and the blade of the conveyor. May not be able to break
There is a problem that cannot be dealt with when the supply becomes excessive. On the other hand, in the case of using the upper and lower bag breaking conveyors, if large and small bags of different sizes enter between the bag breaking conveyor and the conveyor at the same time, 1 In some cases, large and small bags cannot be effectively broken.

[0006] Therefore, the present invention is intended to prevent excess supply and to be able to handle even if the sizes of the bags differ in size, so that the bags can be efficiently broken. .

[0007]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, the present invention is directed to a surface of a horizontally long frame having an inlet at one end and an outlet at the other end. A transfer conveyor with a number of transfer projections attached to it is arranged so as to reach from the input port position to the discharge port position, and is positioned at the input port side in the frame so as to face the upper surface of the transfer conveyor from above. A supply gate is provided, and a slender bag-breaking machine having a bag-breaking blade at a tip end side for cutting a bag that has passed through the fixed-rate supply gate at a position downstream of the back of the fixed-rate supply gate is swung in a conveyor conveyance direction. Mounted downward so that it can operate, the elongated swing-type bag breaking machine is configured such that the tip side is constantly pushed upstream in the conveyor transport direction, and further, the downstream side of the elongated swing-type bag breaking machine. A rotary drum having a large number of bag-breaking blades on its outer peripheral surface attached to the distal end of the arm and capable of swinging around the base end of the arm as a fulcrum. The arm of the bag breaking machine is supported by the frame so as to be able to swing in the conveyor conveyance direction, and the rotary swing bag breaking machine is configured such that the rotary drum is constantly pushed to the upstream side in the conveyor conveyance direction.

When a bag is put into the frame from the inlet,
Small ones pass under the fixed supply gate as they are, but large ones are provided with passage resistance by the fixed supply gate, so that there is no excess supply. The bags that have passed through the metering gate are torn by an elongated swing type bag breaking machine and then finely cut by a rotary swing bag breaking machine. At this time, since the rotary swing bag breaking machine is pressed against the bag, it can handle both large and small bags.

When the rotary swing bag breaking machine is configured as a primary rotary swing bag breaking machine and provided with a secondary rotary swing bag breaking machine having a similar structure on the downstream side, the step of finely tearing is omitted. Since it can be repeated twice, the bag breaking operation can be performed more reliably.

Further, if the transport projections on the surface of the transport conveyor are formed as thin blades parallel to the transport direction, the bag can be broken by the transport conveyor, which is more effective.

On the other hand, even if a rotary saw bag-breaking machine is provided with a circular saw-shaped bag-breaking blade in place of the rotary drum with the bag-breaking blade, the bag can be finely cut by the circular saw-shaped bag-breaking blade. .

[0012] Further, by employing a configuration in which a projection is attached to the lower end of the fixed-quantity supply gate, a hole can be made in a large bag by the projection, and the tearing work in the subsequent process can be promoted.

[0013]

Embodiments of the present invention will be described below with reference to the drawings.

FIGS. 1 and 2 show an embodiment of the present invention, in which longitudinal members 2 at four corners, front and rear and left and right beams 3 connecting between upper ends and lower ends of these longitudinal members 2, and appropriate The connecting member 4 constitutes a frame 1 which becomes a bag breaking device body which is long in the lateral direction, and an input port 5 is formed at an upper position on one end side in the longitudinal direction of the frame 1 and an outlet port 6 is formed at a lower position on the other end side. In addition, the frame 1 is arranged to be inclined at a required angle in the vertical direction so that the discharge port 6 floats from the ground.

A transport conveyor 8 driven by a motor 7 is provided at a lower position in the frame 1.
Are installed along the longitudinal direction of the frame 1 so as to reach the discharge port 6 from the input port 5, and a large number of transport projections 9 are required in the longitudinal direction and the width direction on the transport surface 8a serving as a surface. Bag 1 containing the contents 10a supplied and supplied from the inlet 5 onto the upper conveying surface 8a.
The frame 1 is transported downstream so as to be discharged from the discharge port 6, and further, to break the bag 10 being transported along the upper transport surface 8 a of the transport conveyor 8.
In the upper position, a fixed-rate supply gate 11, a swing-type bag breaking machine 12, a primary rotary swing bag breaking machine 13, and a secondary rotary swing bag breaking machine 14 are equipped in this order from the upstream side.

The fixed-quantity supply gate 11 is provided to prevent excessive supply of the bags 10 and is provided at a position on the side of the inlet 5 so as to regulate the area of the space above the upper conveying surface 8a of the conveying conveyor 8. It has a configuration in which the projections 15 are attached to the lower end of the front surface at required intervals in the width direction.

The swing type bag-breaking machine 12 has an elongated one-sided saw-like shape having a bag-breaking blade 12a at one end, and is fixed at a required interval in the width direction on the back of the fixed-quantity supply gate 11. The bracket 16 has a bag-breaking blade 12a swingably supported in the conveyor transport direction such that the portion of the bag-breaking blade 12a faces upstream in the conveyor transport direction. A spring (pull) 18 is interposed between the beam 17 and the beam 17 so that the swinging movement in the conveyor conveyance direction is urged toward the upstream side and restrained in the downward posture position. In addition, the bag-breaking blade 12a of the swing-type bag-breaking machine 12 is formed such that the blade edge angle is obliquely downward.

The above primary rotary swing bag breaking machine 13
A drum 20 having a large number of protruding bag-breaking blades 19 mounted on the surface thereof is arranged in the width direction in the vicinity of the upper conveying surface 8a of the conveying conveyor 8, and shafts 21 at both ends of the drum 20 are arranged.
Are supported by a built-in motor 23 so as to be rotatable by a built-in motor 23 at a lower end portion which is a distal end portion of the arm 22 arranged in the up-down direction. 3 on the bracket 24 fixed on
The support shaft 25 is swingably suspended in the conveyor conveyance direction, and a spring (torsion) 26 is assembled to the support shaft 25 so that the swing operation of the arm 22 is biased toward the upstream side. In addition, stoppers 27 for restricting the swing operation of the arm 22 to the upstream side in the vicinity of the downward posture are attached to both ends of the back surface of the auxiliary beam 17.

The secondary rotary swing bag breaking machine 14
Has the same configuration as that of the primary rotary swing bag breaking machine 13.

Reference numeral 28 denotes a protruding bag-breaking blade attached to the inner surface of the connecting member 4 at the middle part in the vertical direction located on the left and right, and cooperates with the swing type bag-breaking blade 12 and the rotary swing bag-breaking machines 13 and 14. It is for working and breaking the bag 10.

The conveyor 7 is driven by the motor 7,
In a state where the drums 20 are rotated by driving the motors 23 of the primary rotary swing bag-breaking machine 13 and the secondary rotary swing bag-breaking machine 14, respectively, the bag 10 containing the contents 10a such as empty bottles and empty cans is contained. Is supplied onto the upper conveying surface 8a of the conveyor 8 from the input port 5 of the frame 1, the small bag 10 passes directly below the fixed amount supply gate 11, but the large bag 10 As a result, a passing resistance is given by the relative action of being crushed, thereby preventing excessive supply. Also, at this time, the projection 15 attached to the lower end of the fixed amount supply gate 11 is caught by the bag 10, so that the passage resistance is increased, and at the same time, a hole can be formed in the bag 10, which facilitates the tearing work in the subsequent process. can do.

The bag 10 to be passed under the fixed amount supply gate 11 is first split by a swing type bag breaking machine 12 located immediately after the fixed amount supply gate 10. At this time, when the bag 10 is hooked on the blade edge of the bag-breaking blade 12a, the bag-breaking machine 12 is swung downstream so as to be flipped up against the spring 18, but since the blade edge is inclined downward, the bag 10 Is not caught on the cutting edge forever, and is separated from the cutting edge and sent downstream.

Next, when the split bag 10 is conveyed downstream, it is torn by the primary rotary swing bag breaking machine 13. In this case, a large number of bag breaking blades 19
The bag 10 can be efficiently and finely cut by rotating the drum 20 to which is attached in the direction opposite to the transport direction of the transport conveyor 8. At this time, the arm 22 supporting the drum 20 is given a swing force toward the upstream side by the spring 26, so that the large bag 10 or the small bag 10 can be reliably used for the bag breaking blade 19. Can be pressed, and the bagging blade 1
Even if a situation occurs in which the arm 9 directly abuts, the arm 22 is swung so as to escape to the downstream side against the spring 26, so that the damage to the bag breaking blade 19 can be prevented and the empty bottle can be prevented. Can be prevented from being damaged.

Next, the primary rotary swing bag breaking machine 1
The bag 10 that has passed the position 3 is continuously sent to the downstream side, so that it is further finely cut by the secondary rotary swing bag breaking machine 14.

Thereafter, the finely cut bag 10 and the empty bottles or cans as the contents 10a are discharged through the discharge port 6. At this time, for example, the position of the downstream end of the conveyor 8 is determined. When the air is blown from the side, the bags 10 can be easily separated and removed. On the other hand, empty bottles and empty cans discharged from the discharge port 6 are continuously or separately sorted by a sorting device (not shown).

Next, FIG. 3 shows another embodiment of the present invention. In a configuration similar to the above-described embodiment, a transfer projection provided on the transfer surface 8a of the transfer conveyor 8 is parallel to the transfer direction. This is a thin blade 29.

As shown in FIG. 3, the transport conveyor 8
Since the cutting force can be applied to the bag 10 also by the blade 29, the bag breaking ability can be further improved.

FIGS. 4A and 4B show still another embodiment of the present invention. In the configuration of the rotary swing bag breaking machines 13 and 14 shown in the above embodiment, the rotary drum 20 is used. Instead of attaching the protruding bag-breaking blade 19 on the peripheral surface of the arm, a rotary drive shaft 30 is provided between the distal ends of the arms 22 located on the left and right, and a circular saw-shaped bag-breaking blade is provided on the rotary drive shaft 30. 31 is attached. In the drawing, the rotation drive shaft 30 is connected to the support shaft 2 at the base end of one arm 22.
5 can be rotated by receiving the driving force of the motor 32 connected to the gear 5 through the chain sprocket 33, the chain 34, and the chain sprocket 35.
A motor may be built in the rotary drive shaft 30.

4 (a) and 4 (b), the bag 10 can be efficiently cut by the circular saw-shaped bag-breaking blade 31 to make it finer.

The present invention is not limited to the above embodiment. The frame 1 does not need to be inclined, and in the present embodiment, the primary rotary swing bag breaking machine 13 and the secondary rotary swing Although the case where the rotary swing bag breaking machine 14 is used is shown, it is also possible to use only the primary rotary swing bag breaking machine 13 and various other changes are made without departing from the gist of the present invention. Obviously you can get it.

[0031]

As described above, according to the bag breaking device of the present invention, the following excellent effects are exhibited. (1) At the lower part inside a horizontally long frame that has an input port at one end and a discharge port at the other end, a transfer conveyor with a number of transfer projections attached to the surface is discharged from the input port position. Arranged to reach the outlet position, and at the position of the input port side in the frame, while providing a fixed amount supply gate so as to face the upper surface of the transport conveyor from above, at the downstream portion of the back side of the fixed amount supply gate, An elongated bag-breaking machine having a bag-breaking blade at the tip end for making a break in the bag that has passed through the fixed-rate supply gate is attached downward so as to be able to swing in the conveyor transport direction, and the elongated swing-type bag-breaking machine is provided. The rotating drum having a large number of bag-breaking blades on its outer peripheral surface is provided at the downstream side of the elongated swing-type bag-breaking machine so that the leading end is always pushed upstream in the conveyor conveyance direction. Tip A rotary swing bag breaking machine which is attached to the arm and which can swing with the base end of the arm as a fulcrum is arranged, and the arm of the rotary swing bag breaking machine is supported by the frame so as to be able to swing in the conveyor conveyance direction. Since the rotary swing bag breaking machine is configured such that the rotary drum is always pushed to the upstream side in the conveyor conveyance direction, among the bags put in from the input port, small bags are located below the fixed amount supply gate. Can be passed as it is, but large bags can be provided with passage resistance by the metering supply gate to prevent oversupply. A tear can be given by the bag breaking machine, and the bag blade of the rotary swing bag breaking machine is pressed against the bag with the crack. Since to so that may be torn efficiently finely be small bag in a large bag, moreover rotary swing breakage machine from being able to escape to the downstream side hits the contents,
The bag can be broken without damaging the contents. (2) The rotary swing bag breaking machine is provided with a secondary rotary swing bag breaking machine of the same configuration downstream of the rotary swing bag breaking machine as a primary rotary swing bag breaking machine. Since the slicing process can be repeated twice for bags with rips,
The bag breaking operation can be performed more reliably. (3) By forming the transport projections on the surface of the transport conveyor as thin blades parallel to the transport direction, the transport conveyor itself can break the bag, and the bag breaking efficiency can be further improved. (4) Instead of a rotary drum with a bag-breaking blade of a rotary swing bag-breaking machine, a configuration in which a circular saw-shaped bag-breaking blade is attached may be used.
The bag can be cut into small pieces by a circular saw blade. (5) By adopting a configuration in which a projection is attached to the lower end of the fixed-quantity supply gate, a hole can be made in a large bag by the projection, which is advantageous in that it facilitates the tearing work in the subsequent process. Become.

[Brief description of the drawings]

FIG. 1 is a schematic view showing one embodiment of a bag breaking device of the present invention.

FIG. 2 is a view in the direction of arrows AA in FIG. 1;

FIG. 3 is a partial view showing another embodiment of the present invention.

FIG. 4 shows still another embodiment of the present invention.
(A) is a schematic view of a rotary swing bag breaking machine, and (B) is a view taken in the direction of arrows BB in (A).

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Frame 5 Input port 6 Discharge port 8 Conveyor 8a Conveying surface (surface) 9 Conveying projection 10 Bag 11 Quantitative supply gate 12 Bag breaking machine 12a Bag breaking blade 13 Primary rotary swing bag breaking machine 14 Secondary rotary swing bag breaking machine 15 Protrusion 19 Breaking Blade 20 Drum 22 Arm 29 Breaking Blade 30 Rotating Drive Shaft 31 Breaking Blade

 ──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Mitsuhiro Yamashina 3-1-1-15 Toyosu, Koto-ku, Tokyo Ishikawajima Harima Heavy Industries Co., Ltd.

Claims (5)

[Claims] 1. A transfer conveyor having a plurality of transfer projections mounted on its surface at a lower position inside a horizontally long frame having an input port at one end and a discharge port at the other end. And a discharge gate position, and a quantitative supply gate is provided at a position on the input port side in the frame so as to face the upper surface of the transport conveyor from above, and a downstream position on the back side of the quantitative supply gate. An elongated bag-breaking machine having a bag-breaking blade at the tip end for making a break in the bag that has passed through the fixed-rate supply gate is attached downward so as to be able to swing in the conveyor transport direction, and the elongated swing-type bag-breaking is performed. Machine, so that the tip side is constantly pushed upstream in the conveyor transport direction, and further, at a position downstream of the elongated swing type bag breaking machine, a rotating drum having a large number of bag breaking blades on the outer peripheral surface is provided. A A rotary swing bag breaking machine attached to the distal end of the robot and swinging around the base end of the arm is disposed, and the arm of the rotary swing bag breaking machine is swung in the conveyor transport direction so as to be able to swing. A bag breaking apparatus characterized in that the rotary swing bag breaking machine is supported by a frame, and the rotary drum is constantly pushed to the upstream side in the conveyor conveyance direction. 2. The rotary swing bag-breaking machine according to claim 1, further comprising a secondary rotary swing bag-breaking machine having a similar configuration downstream of the rotary swing bag-breaking machine as a primary rotary swing bag-breaking machine.
The bag breaking device according to the above. 3. The bag breaking device according to claim 1, wherein the transfer projection on the surface of the transfer conveyor is a thin blade parallel to the transfer direction. 4. The bag breaking apparatus according to claim 1, wherein a circular saw-shaped bag-breaking blade is mounted in place of the rotary drum with the bag-breaking blade of the rotary swing bag-breaking machine. 5. The bag breaking device according to claim 1, wherein a protrusion is attached to a lower end of the fixed amount supply gate.