JPH1111645A - Automatic overturning device of container - Google Patents

Abstract

PROBLEM TO BE SOLVED: To unload waste bottles from a container without breaking them. SOLUTION: This device has loading conveyors 2, 3 and an unloading conveyor 4, all provided inside a rotary frame 12b, etc., and, with a container C put on the former conveyor 2 and the opening of the container C closed by the latter conveyor 4, the conveyors and the container C are integrally inverted to unload waste bottles in the container C onto the latter conveyor 4. The container C is opened and closed by making the conveyors touch and leave each other. The containers C are integrated by a clamp device 5. In this case, the containers C are individually clamped. The loading conveyors 2, 3 use a roller conveyor and a friction conveyor which consists of a belt rotated in contact with each roller of the roller conveyor. The conveyors 2, 4 are raised and lowered by a lifting device (link mechanism).

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an automatic overturning device for overturning a container storing recyclables in a recycling apparatus for recycling waste bins (bottles) or the like during transportation.

[0002]

2. Description of the Related Art Recycled waste such as waste bins collected in households and the like is stored in a predetermined container, carried into a processing facility, and conveyed to each processing step such as sorting by a conveyor or the like. Perform processing. In the processing of the recycled garbage, the waste bottles are collected, for example, as raw bottles without being crushed like beer bottles, or are collectively collected in the same color system after being classified by color. This color-based collection is currently classified into at least four colors: white (transparent), black, brown, and blue. Waste bottles collected in the same color system are disintegrated and melted and reused as bottle materials. You.

[0003] When recycling waste bins, if waste bins of different colors are mixed in the color-separated waste bins, various colors are obtained when they are melted, and a desired color can be obtained. Without
In some cases, the product value is inferior and cannot be reused at all.

[0004] The color separation of the waste bins is now mechanized. At this time, as the bins are broken and become smaller pieces, the smaller the pieces are, the more difficult the discrimination becomes. Is disposed of. This is a waste of resources, and it is necessary to secure a disposal site. For this reason, it is necessary to transport the waste bin without being damaged as much as possible in the waste bin color separation process.

[0005] A general means of transporting the waste bin is to send the waste bin from a collection container onto a conveyor, and to feed the waste bin to the color separation device by the conveyor, as a conventional waste bin feeding device onto the conveyor. And JP-A-7-179225.

[0006] The technique described in this publication is that a plurality of containers are collectively held and placed on a reversing table, the containers are reversed by a driving cylinder fixed to the lower part of the reversing table, and waste bins stored in the containers are disposed. After touching the hanging rubber,
It is guided by a guide plate and falls on a conveyor. At this time, the waste bin is assumed to be sent out onto the conveyor without being damaged due to the loosening action of the hanging rubber.

Japanese Patent Application Laid-Open No. 7-330160 discloses a technique in which a container is held and fixed in an annular holding frame, and in this state, the holding frame is rotated to discharge the contents in the container. ing.

[0008]

In the prior art described in the above-mentioned publication, the method of preventing breakage of the waste bottle is only a loosening action by the hanging rubber, so that there is no great expectation for the prevention of breakage. In other words, waste bins are relieved by hanging rubber, then slide down on the guide plate and then fall onto the conveyor.Therefore, collision of waste bins on the conveyor is unavoidable, and waste bin breakage is inevitable. The recovery rate as a raw bottle suitable for utilization will be reduced.

[0009] Further, in the prior art described in the latter publication, no means is devised for a means for preventing breakage at the time of discharging the container contents.

An object of the present invention is to send (discharge) a waste bin from a container onto a conveyor as little as possible under the above-mentioned technical level.

[0011]

In order to solve the above-mentioned problems, the present invention provides a container loading conveyor and a container storage discharging conveyor opposed to each other, and places a container on the former conveyor, and arranges the latter. With the opening of the container closed by the conveyor, both conveyors and the container are turned over together, and the contents stored in the container are transferred (discharged) onto the latter conveyor.

[0012] Since the container opening is turned over while being closed by the conveyor, the stored items are smoothly transferred onto the conveyor.
In addition, since the falling distance is extremely small, the damage such as the waste bottle is extremely small. The container is set in this apparatus by a carry-in conveyor, and is sent out to a required position. On the other hand, stored items such as waste bins in the conveyor are transferred to, for example, a color sorting apparatus by the discharge conveyor.

The term "close the container opening with a conveyor" as used in the present invention means not only a state where the conveyor is in contact with the edge of the container opening but also a container opening which does not fall out even if the stored items are transferred onto the conveyor. When a fall prevention plate is provided as described later, a gap is provided between the two to such an extent that the plate does not spill with the aid of the plate. In other words, the closed state is such that the stored items do not fall out.

[0014]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS As an embodiment of the present invention, the above-described container carrying conveyor and container container discharging conveyor are provided in a rotating frame. It is in the direction of the rotation axis and one of the conveyors can be brought into contact with and separated from the other conveyor.In a state where the container is placed on the carry-in conveyor, both conveyors are approached to open the container opening by the discharge conveyor. In such a state, the container may be turned over by rotating the rotating frame in this state, and the contents stored in the container may be transferred to the discharge conveyor.

In this configuration, the two conveyors and the container rotate integrally by the rotation of the rotating frame, and the container contents are discharged. This discharge is performed while raising the transport conveyor together with the container or lowering the discharge conveyor. At this time, if the conveyed object drop prevention plates are provided on both sides of the discharge conveyor, and the width of the conveyor is made wider than the width of the container, it is possible to prevent the discharge from dropping off the conveyor as much as possible, and the width is wide. In this case, it is possible to reduce the ascending (falling) distance of the conveyor until the discharge is completed.

The container carrying conveyor can carry a plurality of containers in a row into the rotating frame, and the rotating frame has means for holding the container on both side surfaces, and the holding means. May be provided corresponding to each container, and a configuration in which the respective holding intervals are variable.

By employing this configuration, many containers can be inverted at a time, and the holding means is provided for each container, so that even if there is a difference in each container size, it can be handled.

In the above-mentioned conveyor, the rollers are arranged in parallel in the transport direction, a belt is brought into contact with the lower surface of each roller, and each roller is rotated by running the belt. In such a conveyor, each roller rotates as the belt travels, and the container is transported.When the container is transported to a required position and positioned by a stopper or the like, thereafter, the belt and the belt are moved. The rollers slide to maintain the set position of the container, while the rollers corresponding to the unpositioned containers continue to rotate and transport the container. Therefore, it is advantageous when a plurality of containers are sequentially loaded into the apparatus.

As means for closing and opening the opening of the container by contacting and separating the two conveyors, for example, the two conveyors are connected by a link mechanism, and the two conveyors are maintained in parallel via the link mechanism. A configuration is adopted in which one can approach and separate the other.

[0020]

[Embodiment] Wastes transported to a recycling center are separated according to their respective purposes. In order to recycle waste bottles, it is necessary to classify various waste bottles by color. ing. The container automatic overturning device according to the present invention is a device meeting this purpose, and its embodiment will be described with reference to FIGS. 1 to 10 showing its configuration and FIGS. 11 to 14 showing its operation.

Referring mainly to FIGS. 1 and 2, the automatic overturning device 1 of this embodiment has a grooved tire 76 on the right and left sides of the upper surface of the bed 11 and a grooveless tire 77 on the left and right sides. The annular frames 12a, 1
2b are installed rotatably, and the driving device 7
By rotating one tire 76 by 2, the annular frames 12a and 12b also rotate. That is, the tires 76 and 77 are rotatably supported on the shaft 78 via the bearing 75, and the right tire 76 is formed with a groove 76a into which the annular frame 12a is fitted, so that the entire rotating device can be rotated. The position is not shifted. A transmission shaft 79 is connected between the rear tires 76 and 77,
The rotation of the electric motor 72 is controlled by the sprocket ticket 72a and the chain 7.
2b (see FIG. 3) and the tire 7
Due to the rotation of 6, 77, the annular frames 12a, 12b rotate synchronously (see FIG. 3).

A fixed frame 13 is provided on the upper and lower sides of the two annular frames 12a and 12b, and connects and fixes the two annular frames 12a and 12b. In the middle of the fixed frame 13, the belt conveyor 4 for carrying out the waste bin is provided with the annular frame 12 via brackets 44a and 44b.
a, 12b. A vertically moving frame 14 is provided directly below the waste bin unloading conveyor 4, and the roller conveyor 2 and the friction belt conveyor 3 are disposed on the vertically moving frame 14, and the container C is placed on the frame 22 of the roller conveyor 2. A locking device 5 for locking is provided, and a guide 24 is attached to the frame 22 (see FIGS. 4 and 5) to align the containers at the time of loading.

A hydraulic cylinder 61 is connected to the front and rear centers of the fixed frame 13 and the vertically movable frame 14, and
The vertical frame 14 moves up and down together with the container C by the operation of the hydraulic cylinder 61 via 4, 65 and 66 (see FIGS. 1 and 11). After the container C rises and the open portion of the container C comes into contact with the belt surface of the waste bin carrying conveyor 4, the tires 76 and 77 are rotated.
When the annular frames 12a and 12b rotate and are turned 180 °, the items stored in the container C slide down and are placed (moved) on the waste bin unloading container 4 (FIG. 14).
(B)).

As shown in FIG. 1, the container C stores waste bins separated from other garbage as pre-processing, and, for example, as shown in FIG. The containers C are transferred as one set, stopped by the stopper S1, and the container group is on standby.
When the discharge of the waste bin is completed and the roller conveyor 2 returns to the original position, the six containers C are transferred to the roller conveyor 2 by a signal indicating that the container C can be loaded into the automatic overturning device 1. At this time, the container C is moved along the guide 24 attached to the roller support frame 22 with the bracket 25.
Is transferred to the roller conveyor 2. The number of containers C to be transferred at one time is arbitrary. For example, if many containers such as six are transferred as one set, the operation efficiency is good.

The rollers 21 of the roller conveyor 2 are rotatably supported by roller bearings (not shown) by a roller support frame 22, and are arranged in a large number from the carry-in port to the carry-out port over the entire length. Is provided with a friction type belt conveyor 3 (see FIGS. 2 and 11). The drive roller 32 is supported by a bracket 34 on the entrance side of the friction type belt conveyor 3, and the bracket 34 is attached to the vertically movable frame 14. A driven roller 33 is supported by a bracket 35 on the outlet side, and the bracket 35 is attached to the vertically movable frame 14. Drive roller 3
2 has a built-in motor structure for compactness, is controlled by a signal of an electric system (not shown), rotates clockwise as shown by an arrow in FIG. 11, and the belt 31 moves from left to right. By moving, the roller 21 in contact with the upper surface of the belt 31
The container C placed on the roller 21 rotates counterclockwise due to the friction with the container 21 and is transported in the exit direction.

The container C transferred to the exit direction is
Stopper S2 attached to the end of roller conveyor 2
However, until the six containers C are completely aligned on the roller conveyor 2, the friction belt conveyor 3 continues to be driven, and the containers C are sequentially pushed and aligned. At this time, if the frictional resistance between the lower surface of the container C stopped by the stopper S2 and the outer peripheral surface of the roller 21 becomes excessive, the roller 21 automatically rises and the belt 31 of the friction type belt conveyor 3 and the roller 21 The overload is prevented by relaxing the contact surface. The friction type belt conveyor 3 is a well-known one that is commercially available as an accumulator.

When the alignment of the containers C is completed, the friction type belt conveyor 3 is stopped by the detection signal,
The state shown in FIG. Thereafter, the piston rod 56 fixed to the beam 51 is fixed by the four hydraulic cylinders 55 fixed to the clamp device 5 and the frame 22.
Protrudes, the beam 51 advances, and the abutment 52 comes into contact with the side surface of the container (FIGS. 6 and 13B). At this time,
The side width CW of the container C (see FIG. 13B) generally varies, and the container C is repeatedly used, causing distortion or the like. Therefore, the side width CW varies. By interposing a spring 53 between the beam 51 and the pad 52, the variation is absorbed, and the pad 52 abuts on the side surface of the container C and is securely fixed (see FIG. 4). In addition, beam 51
Is smoothly moved without twisting by the sliding fit between the slider 51a of the beam 51 and the guide 51b provided on the support frame 22 of the conveyor 2 shown in FIG.

When the container C is fixed on the roller conveyor 2 by the clamp device 5, the lifting device 6 is driven, and as shown in FIGS.
The conveyor 2, the guide 24, and the belt conveyor 4 rise, and the opening of the container C is moved to the belt 4 of the waste bin unloading conveyor 4.
Contact 3 At this time, the belt 43 is supported by a guide roller 43a and a guide plate 43b in the middle (FIGS. 4, 5,
11). As shown in FIG. 1, the lifting device 6 has a hydraulic cylinder 61 provided at the center of a fixed frame 13 and a vertically moving frame 14 with front and rear lower bearings 61a and upper bearings 61b. 64,
65, and the levers 64 and 65 are connected to the intermediate link 6.
6 and is connected to the fixed frame 13 and the vertically movable frame 14, and the vertically movable frame 14 is raised via levers 64 and 65 by the expansion and contraction of the hydraulic cylinder 61, that is, the contraction of the hydraulic cylinder 61. On the other hand, the vertical movement frame 14 descends due to the extension, and the vertical movement frame 14 moves up and down while maintaining the horizontal position. When the vertically moving frame 14 moves up and down while maintaining the horizontal position, the roller conveyor 2, the friction belt conveyor 3, the clamp device 5, and the guide 24 mounted on the vertically moving frame 14 move up and down horizontally.

The fixed frame 13 includes the annular frame 12
a, 12b are fixed at four positions in the front, rear, left and right directions.
Are fixed to the annular frames 12a and 12b. The column 15 is a vertically moving frame 1 that moves up and down as described above.
4. The purpose of this guide is to eliminate the inclination of the conveyors 2, 3 etc. in the left, right, front and rear directions, and to smoothly raise and lower the conveyors. That is, for the left and right, FIG.
FIG. 2 shows the front and rear by the guide roll R1 shown in FIG.
Are guided by guide rolls R2 and R3, respectively.

As shown in FIG. 13C, when the container C and the conveyors 2 and 3 are integrally moved to a required position,
According to the rise detection signal, the annular frames 12a and 12b are rotated by 180 degrees by the electric motor 72, so that FIGS.
As shown in FIG. 4 (a), the container C falls down. Due to this overturn, the waste bin a in the container C slides down on the discharge belt conveyor 4 and is placed.

After the fall, the annular frames 12a, 1a
When 2b stops, the hydraulic cylinder 61 of the elevating device 6 extends as shown in FIG. 14 (b), the opening of the container C separates from the belt surface of the waste bin discharge conveyor 4, and the stored waste bin a is removed. It is completely transferred onto the belt conveyor 4. At this time, by increasing the distance between the open portion of the container C and the belt surface of the conveyor 4, the waste bin is completely opened from the container C, and the waste bins provided on both sides of the waste bin discharge conveyor 4 A fall prevention guide 45 prevents the waste bin a from falling over the waste bin discharge conveyor 4.

Further, as shown in FIG. 2B, the width of the conveyor 4 is made larger than the width of the container C, and the cross-sectional area A1 of the container C and the guide 4 for preventing the waste bin from falling down on the conveyor 4 are provided.
The cross-sectional area A2 between 5 has a relationship of A2> A1,
The waste bin a in the container C is completely opened and placed on the belt conveyor 4 smoothly. The difference (A2> A1) is appropriately set by experiments or the like so that the waste bin a is smoothly and reliably discharged.

The waste bin a transferred to the discharge conveyor 4 is discharged to the conveyor H2 for the waste bin color sorting process by the drive roll 41 built in the electric motor activated in a counterclockwise direction as shown by an arrow in FIG. You. When the discharge is completed, the conveyor 2 and the like are returned to the original state by the lifting / lowering device 6, and the annular frames 12a and 12b are turned over, and after FIGS. 14 (c) and 13 (b), FIG. After returning to the original state shown by, the stopper S2 is lowered, and the empty container C is discharged out of the apparatus by driving the friction type belt conveyor 3. Thereafter, the container C waiting is sent into the apparatus 1 by the transport conveyor H1, and the above operation is repeated. In the figure, P indicates the annular frames 12a, 1
This is a cable for supplying electricity and air to various driving devices between 2b.

In this embodiment, the carry-in conveyors 2 and 3 are moved up and down, but the discharge conveyor 4 may be moved up and down. Further, the carry-in side conveyor can be constituted by only the roller conveyor 2 or the belt conveyor 3.

[0035]

As described above, according to the present invention, it is possible to overturn and discharge easily damaged container contents such as waste bottles while minimizing the damage.

[Brief description of the drawings]

FIG. 1 is a front view of an embodiment of an automatic container overturning device according to the present invention.

FIG. 2 is a right side view of the embodiment.

FIG. 3 is a plan view of the embodiment.

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

FIG. 5 is a view taken in the direction of arrows BB in FIG. 1;

FIG. 6 is a view taken in the direction of arrows CC in FIG. 1;

FIG. 7 is a schematic arrow view taken along the line DD in FIG. 1;

FIG. 8 is a view taken in the direction of arrows EE in FIG. 1;

FIG. 9 is an enlarged view of a main part of FIG. 4;

10A is an enlarged view of a main part of FIG. 1, and FIG. 10B is a perspective view of the main part of FIG.

FIG. 11 is an operation explanatory view of the embodiment (longitudinal sectional view of FIG. 13A).

FIG. 12 is an explanatory view of the operation of the embodiment (vertical sectional view of FIG. 14 (b)).

FIG. 13 is an operation explanatory view of the embodiment.

FIG. 14 is an operation explanatory view of the embodiment.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 Automatic overturning device 2, 3 Container carrying-in conveyor (roller conveyor, friction conveyor) 4 Container carrying-out conveyor (belt conveyor) 5 Container clamping device 6 Conveyor elevating device 11 Device bed 12a, 12b Rotating frame (annular frame) 13 Fixed Frame 21 Conveyor Roller 24 Guide 31 Belt 32 Drive Roller 43 Belt 45 Conveyance Drop Prevention Plate (Waste Bin Fall Prevention Guide) 51 Beam of Clamping Device 52 Deposit 53 Spring 55 Cylinder 61 Hydraulic Cylinder 64, 65, 66 Link Mechanism 72 rotating frame drive motor 76, 77 rotating frame rotating tire C container

Claims (6)

[Claims] 1. A container carrying conveyor 2, 3 and a container storage discharging conveyor 4 are provided to face each other, and a container C is placed on the former conveyor 2, 3 and the latter conveyor 4 is placed.
In a state in which the opening of the container C is closed, the conveyors 2, 3, and 4 and the container C are turned over integrally, and the storage items a in the container C are transferred onto the latter conveyor 4. Automatic fall device. 2. The container carrying conveyors 2, 3 and the container storage discharging conveyor 4 are connected to a rotating frame 12a.
12b, the two conveyors 2, 3, and 4 have their transfer surfaces facing each other in the direction of the rotation axis of the rotary frames 12a and 12b, and one of the conveyors 2, 3 is separated from and separated from the other conveyor 4. With the container C placed on the carry-in conveyors 2, 3, the conveyors 2, 3, 4 are approached to close the opening of the container C by the discharge conveyor 4, and in that state, The rotating frame 12
2. The container automatic overturning device according to claim 1, wherein the container C is turned over by rotating a and 12 b, and the stored items a in the container C are transferred onto the discharge conveyor 4. 3. The container carrying conveyor can carry a plurality of containers C in a row into the rotating frames 12a and 12b.
2b has means 5 for holding the container C on both side surfaces, and the holding means 5 is provided corresponding to each container C, and each holding interval is variable. The container automatic overturning device according to claim 2. 4. The transfer conveyors 2, 3 are rollers 2
2, the belts 31 abut on the lower surface of each roller 21, and each roller 21 is rotated by the running of the belt 31.
4. The automatic overturning device for a container according to any one of claims 3 to 3. 5. The conveyor 2 for carrying in and discharging,
3, 4 are connected by link mechanisms 64, 65, 66,
5. The system according to claim 1, wherein the conveyors 2, 3, and 4 are maintained in parallel via the link mechanisms 64, 65, and 66, and one of the conveyors can be moved toward and away from the other. Automatic container overturning device. 6. The conveyor according to claim 1, wherein a plate for preventing falling of the conveyed material is provided on both sides of the discharge conveyor, and the width of the conveyor is wider than the width of the container. Automatic container overturning device according to one of the above.