JP2001104814A - Waste cutting device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To make cutting efficiency better, the device smaller and a manufacturing cost lower. SOLUTION: Empty cans 30 inserted from a waste insertion port 4 falls in a hopper 11 and are cut by rotary blade groups 32 and 33 facing each other. The cut cans are housed into a cut chip housing box 40. The bottom end of the hopper 1 is provided with a foreign matter discharge port 24, a discharge flapper 25 for opening and closing this foreign matter discharge port 24 and a chute sensor 29. When the presence of the empty can 30 for more than the prescribed time is detected by the chute sensor 29, the discharge flapper 25 is instantaneously oscillated.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a waste cutting apparatus for cutting waste such as empty cans.

[0002]

2. Description of the Related Art In a waste cutting apparatus of this type, when an empty can inserted from an opening provided at an upper part of the apparatus falls onto a pair of opposed rotating blade groups, a claw portion of the rotating blade bites the empty can, Thereby, the empty can is wound between the rotary blade groups and cut. In this case, since the length, outer diameter, and shape of the bottom portion of the empty can vary depending on the manufacturer and the type of beverage, and vary, the posture of the empty can when dropped on the rotary blade group also changes in various ways. For this reason, when the empty can falls onto the rotating blade group, the claw portion of the rotating blade group may fall in a posture that is difficult to bite, and in this case, the empty can can be removed for a long time without being corrected. If the group idles, the empty cans may remain without biting the rotary blade, and there is a problem that the cutting efficiency is reduced.

To solve this problem, Japanese Patent Laid-Open No.
There is one disclosed in US Pat. Disclosed herein include a hopper having an open top, and opposed pairs of rotary blades provided at the bottom of the hopper,
And a pushing means for forcibly pushing waste material from the opening of the hopper into the opposed portions of the pair of rotary blades. In this waste cutting apparatus, the waste is pushed into the opposing rotating blades by the pushing means, so that the waste bites into the rotating blade regardless of the insertion direction of the PET bottle or the like into the hopper. improves.

[0004]

However, in the above-mentioned conventional waste cutting apparatus, the pushing means is provided in order to improve the biting of the waste to the rotary blade. A drive device or the like for driving is required, which not only increases the size of the device but also increases the number of components and increases the manufacturing cost.

The present invention has been made in view of the above-mentioned conventional problems, and a first object is to improve cutting efficiency. A second object is to reduce the size of the device.
A third object is to reduce manufacturing costs.

[0006]

In order to achieve this object, an invention according to claim 1 is provided in a waste cutting apparatus for cutting waste by a pair of opposed rotating blades, and is swingably supported. A support member for supporting the waste dropped on the rotary blade group, waste detection means for detecting the waste supported by the support member, and waste present by the waste detection means for a predetermined time or more. Drive means for swinging the support member when it is detected that the support member is present. Therefore, the posture of the waste on the rotary blade group changes due to the swing of the support member. According to a second aspect of the present invention, in the first aspect of the present invention, a waste outlet is provided which is opened and closed by swinging of the support member.
Therefore, the waste that cannot be cut by the rotating blade group is discharged from the waste discharge port.

[0007]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a side view of a waste cutting apparatus according to the present invention, FIG. 2 is a front view of the same, FIG. 3 is a side view showing an enlarged input flapper, and FIG. is there. In FIG. 1, a waste cutting device indicated by reference numeral 1 is provided with a substantially rectangular parallelepiped housing 2, and a rectangular waste insertion opening 4 is provided at an upper portion of a front plate 3 of the housing 2. Have been. Reference numeral 5 denotes a door, which is rotatably supported on a shaft provided on the back side of the front plate 3 via a hinge member 6 and is rotatable about a shaft.
Open and close from outside.

Reference numeral 8 denotes a charging port member, and the waste insertion port 4
Is provided inside the housing 2 and has a box-like shape in which the front side and the bottom side of the waste insertion port 4 are open. A cylindrical chute member 9 is attached to the lower side of the bottom portion of the input port member 8, and a metal sensor 10 as foreign matter detection means is provided around the chute member 9. Reference numeral 11 denotes a substantially cylindrical hopper with upper and lower ends opened, and a vertical portion 11a provided on the upper side and a hopper 11 shown in FIG.
The vertical portion 11 a is formed so as to face the lower end of the chute member 9.

Reference numeral 12 denotes an input flapper which opens and closes an opening at the upper end of the hopper 11, and as shown in FIG.
Are rotatably supported and are urged in a counterclockwise direction in the figure by urging means (not shown). Reference numeral 15 denotes a first solenoid, which is mounted on a bracket 16 fixed to the vertical portion 11a of the chute member 11, and one end of a link member 17 is pivotally attached to the plunger 15a which can move forward and backward. The first solenoid 15 is connected to the metal sensor 1
Only when it is detected by 0 that the waste housed in the chute member 9 is metal, the plunger 15a moves backward.

The other end of the link member 17 is connected to the input flapper 1
When the plunger 15a retreats, the input flapper 12 rotates counterclockwise about the shaft 13 as shown by a two-dot chain line. Then, the opening at the upper end of the hopper 11 is opened. On the other hand, when the first solenoid 15 is deactivated, the closing flapper 1 is actuated by the urging force of the urging means (not shown).
2 rotates clockwise about the shaft 13 in the drawing, and closes the opening at the upper end of the hopper 11 as shown by the solid line.

In FIG. 2, reference numeral 18 denotes a second solenoid, which is mounted on a bracket 19 fixed to the hopper 11, and a base end of a stopper pin 20 is fixed to a plunger (not shown). When the plunger of the second solenoid 18 advances, as shown in FIG. 3, the tip of the stopper pin 20 advances to the lower end of the input flapper 12 closing the opening at the upper end of the hopper 11,
The input flapper 12 is supported, and the horizontal state of the input flapper 12 is maintained.

In FIG. 4, the inclined portion 11 of the hopper 11
A third solenoid 22 is fixed to the side of the lower end of b through a bracket 23, and a waste outlet 24 is provided in front of the lower end of the inclined portion 11b. Reference numeral 25 denotes a discharge flapper, which is rotatably supported around a shaft 26 so as to open and close the waste discharge port 24, and has a long hole 25a at a base end thereof. 27 is a link member, one end of which is the plunger 2 of the third solenoid 22.
A pin 28 pivotally attached to the other end 2a and implanted at the other end is engaged with the long hole 25a of the discharge flapper 25.

Therefore, when the plunger 22a of the third solenoid 22 moves forward, the discharge flapper 25
6 is rotated in the counterclockwise direction in the figure, and advances from the waste discharge port 24 into the hopper 11 as shown by a solid line to close the waste discharge port 24. At this time, the discharge flapper 25 maintains the same inclination so as to be continuous with the front side of the inclined portion 11b of the hopper 11, guides the fall of the empty can 30, and supports the empty can 30 that has fallen to the rotating blade groups 32 and 33 described later. It is positioned to be. Reference numeral 29 denotes a chute sensor as waste detection means, which is provided at the lower end of the inclined portion 11b of the hopper 11, and
The empty cans 30 to be cut are detected by the units 2 and 33, and when the presence of the empty cans 30 to be cut is detected for a predetermined time or more, a signal for instantly operating the third solenoid 22 is transmitted.

The cutting portion, generally designated by the reference numeral 31, includes a pair of opposed rotating blade groups 32, 33 located immediately below the opening at the lower end of the hopper 11, and the rotating blade groups 32, 3
3 is provided. The rotating blade groups 32 and 33 are arranged such that a plurality of rotating blades are spaced at equal intervals in the axial direction by a pair of rotating shafts rotatably supported by a pair of opposed supporting plates 35 and 35. The rotating blades are axially attached and face each other so that the rotating blades are staggered in the axial direction.

A sprocket 36 is provided on the rotating shaft of the motor 34.
And a sprocket 37 is also mounted on the rotating shaft of one of the rotary blade groups 32.
A chain (not shown) is stretched between them, and the rotation of the motor 34 is transmitted to the rotary blade group 32 via the sprockets 36 and 37 and the chain, and the rotary blade group 32 rotates in the direction of arrow A in FIG. I do. The rotation transmitted to the rotating blade group 32 is transmitted to the other rotating blade group 33 via a gear (not shown) which is axially mounted on the rotating shafts of the rotating blade groups 32 and 33 and meshes with each other. Reference numeral 33 rotates in the direction of arrow B in FIG.

In FIG. 2, reference numeral 38 denotes a chip dispersion metal fitting, which is positioned immediately below a pair of opposed rotating blade groups 32 and 33, extends in the front-rear direction, and is cut by the rotating blade groups 32 and 33. Distribute the chips in the horizontal direction. A pair of chip guides 3 are provided on the left and right of the chip dispersion metal fitting 38.
9, 39 are provided, and below the chip dispersion metal fitting 38,
A pair of left and right chip storage boxes 40, 40 are provided.

Next, the cutting operation in the waste cutting apparatus having such a configuration will be described. In advance, the second solenoid 18 is in the non-operation state in FIG. 2, the stopper pin 20 moves forward, and the closing flapper 12 in FIG.
Are held in a horizontal state as shown by the solid line, and the opening at the upper end of the hopper 11 is closed by the input flapper 12. At this time, the first solenoid 15 is in a non-operating state. In FIG. 4, the third solenoid 2
2, the plunger 22a moves forward, and the discharge flapper 25 closes the waste discharge port 24 as shown by the solid line.

In this state, the door 5 is opened as shown in FIG.
When the empty can 30 is inserted therein, the empty can 30 is accommodated in the chute member 9, and the falling is temporarily regulated by the input flapper 12. When the empty can 30 is accommodated in the chute member 9, the metal sensor 10 detects that metal waste is present in the chute member 9. Therefore, the second solenoid 18 is operated, the stopper pin 20 is retracted, and the first solenoid 15 is operated, and FIG.
At this time, the input flapper 12 rotates counterclockwise around the shaft 13 against the urging force of the urging means (not shown), and the upper end opening of the hopper 11 is opened.

At the same time, the empty can 30 by the metal sensor 10
, The motor 34 is driven, and the pair of rotary blades 32 and 33 rotate. Therefore, the empty can 30 falls on the rotary blade groups 32 and 33 by its own weight in the hopper 11, and the claw portions of the rotary blade groups 32 and 33 bite into the empty can 30, whereby the empty can 30 becomes the rotary blade groups 32 and 33. Since the paper is caught in between and cut, the cut chips are stored in the chip storage box 40.

Here, the rotating blade groups 32 and 33 are placed in the empty can 30.
If the claw is not cut without biting, empty can 3
Since 0 rotates idly on the rotary blade groups 32 and 33, the chute sensor 29 detects that the empty can 30 has been present for a predetermined time or more, and the third solenoid 22 is momentarily energized for a short time. . Accordingly, since the discharge flapper 25 swings, the empty can 30 whose upper end is supported by the discharge flapper 25 changes its posture on the rotary blade groups 32 and 33, and bites by the claw portions of the rotary blade groups 32 and 33. As a result, the empty can 30 is cut.
As described above, by changing the posture of the empty can 30, the cutting efficiency is improved and the discharge flapper 25 only needs to be swung, so that the apparatus can be downsized.
And the manufacturing cost is reduced.

In this case, when the empty can 30 idles on the rotating blade groups 32 and 33 despite the swing of the discharge flapper 25, this is continuously detected by the chute sensor 29 and the discharge flapper 25 is swung. . If the empty can 30 is not cut by the rotary blade groups 32 and 33 despite the detection by the chute sensor 29 a plurality of times, the third solenoid 22 is turned on, the discharge flapper 25 is kept open, and the waste discharge port is opened. Open cans 24 that could not be cut from waste outlet 24
Is discharged into the chip storage box 40. As described above, the discharge flapper 25 for improving the cutting efficiency of the empty can 30 is used.
Can also be used as a selector for discharging the empty cans 30 that could not be cut, so that the number of parts can be reduced.

[0022]

As described above, according to the first aspect of the present invention, the cutting efficiency can be improved, the size of the apparatus can be reduced, and the manufacturing cost can be reduced.

According to the second aspect of the present invention, the number of parts is reduced.

[Brief description of the drawings]

FIG. 1 is a side view of a waste cutting device according to the present invention.

FIG. 2 is a front view of the waste cutting device according to the present invention.

FIG. 3 is an enlarged side view showing an input flapper in the waste cutting apparatus according to the present invention.

FIG. 4 is an enlarged side view showing a discharge flapper in the waste cutting device according to the present invention.

[Explanation of symbols]

4 ... Waste insertion port, 10 ... Metal sensor, 11 ... Hopper, 12 ... Input flapper, 22 ... Third solenoid, 2
4 ... waste outlet, 25 ... discharge flapper, 29 ... shoot sensor, 30 ... empty can, 31 ... cutting section, 32, 33 ...
Rotating blade group, 34: motor, 40: chip storage box.

Claims (2)

[Claims] 1. A waste cutting apparatus for cutting waste by a pair of opposed rotating blade groups, a supporting member swingably supported and supporting the waste dropped on the rotating blade group, and the supporting member. Waste detecting means for detecting the waste supported on the vehicle, and driving means for swinging the support member when the waste detecting means detects that the waste is present for a predetermined time or more. A waste cutting device. 2. The waste cutting apparatus according to claim 1, further comprising a waste outlet that is opened and closed by swinging of the support member.