JP2000271505A - Waste shredding apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To miniaturize an apparatus and lower manufacturing cost. SOLUTION: An freely openable door 5, a detection switch 9 for detecting that the door 5 is closed, and an inverse insertion restricting member 11 are installed in a waste insertion inlet 4 of a box body 2. A freely rotatable flapper 14, a hopper 13, and a pair of rotation blades 29, 30 are installed in a lower part of a lower opening of the inverse insertion restricting member 11. When a PET bottle 10 is inserted in the inverse direction to the inverse insertion restricting member 11, the door 5 is kept open and the detecting switch 9 is not turned on and consequently, the flapper 14 cannot be rotated.

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 used for recycling garbage, and more particularly to a waste cutting apparatus for cutting a PET bottle or the like having a tapered end.

[0002]

2. Description of the Related Art In a waste cutting apparatus of this type, when a PET bottle is inserted through an opening provided at the top of the apparatus, the probability of falling from the drinking side of the PET bottle and the probability of falling from the bottom side are as follows. It is about 50%. Therefore,
When the plastic bottle falls from the bottom side having a large diameter, the rotary blade for cutting the plastic bottle has a problem that the plastic bottle does not bite well and the cutting efficiency is reduced.

To solve this problem, Japanese Patent Laid-Open No.
There is one disclosed in US Pat. What is disclosed herein is a hopper having an open top, a pair of rotating blades provided at the bottom of the hopper, and a pair of rotating blades which forcibly remove waste that has passed through the opening of the hopper. And a pushing means for pushing into the opposing portion of. In this waste cutting apparatus, the waste is pushed into the opposing pair of 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 of the present invention is to reduce the size of an apparatus. A second object is to reduce manufacturing costs.

[0006]

In order to achieve this object, according to the first aspect of the present invention, a cylindrical waste having one end side tapered is cut by a pair of rotating blades facing each other. In the waste cutting device, a waste insertion port provided above the rotary blade and a tapered one end of the waste inserted from the waste insertion port are fitted to open a lower part for identifying the direction of the waste. Reverse insertion restricting means, and a support member for temporarily supporting the waste inserted into the reverse insertion restricting means,
Release means for releasing the support of the support member. Therefore, the insertion of the waste inserted into the waste insertion opening from the other end of the large diameter side is restricted by the reverse insertion restricting means, and one end of the small diameter side protrudes from the waste insertion opening. Since the operator does not judge that there is an abnormality and does not release the release means, the state in which the support member supports the waste is maintained, and the fall of the waste is prevented. On the other hand, when inserted into the waste insertion port from one end of the smaller diameter side, the insertion of the one end is not restricted by the reverse insertion restricting means, so that the other end does not protrude from the waste insertion port. .
When the operator releases the release means, the support of the support member is released.

According to a second aspect of the present invention, in the first aspect of the present invention, detecting means for detecting that waste is inserted into the reverse insertion restricting means in a normal direction and activating the releasing means. It is provided with. Therefore, the waste inserted in the normal direction into the reverse insertion restricting means automatically falls on the rotary blade by the detecting means. According to a third aspect of the present invention, in the second aspect of the present invention, a door for opening and closing the waste insertion port is provided, and the release means is operated by detecting the closed state of the door. Therefore, the waste inserted into the reverse insertion restricting means in the normal direction automatically falls on the rotary blade by detecting the closed state of the door.

According to a fourth aspect of the present invention, in the first aspect of the present invention, the support member is formed in a flat plate shape, the support member is rotatably supported, and the support member rotates. A fulcrum is provided on the waste insertion port side. Therefore, the waste slides on the support member with one end having a small diameter facing downward, and falls on the rotary blade. According to a fifth aspect of the present invention, in the first aspect of the present invention, a guide member is provided between the support member and the cutting device, the guide member having a gradually decreasing distance toward the cutting device. Therefore, the waste material that is released from the support of the support member and falls is guided to the opposing portions of the paired rotary blades by the guide member.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. 1 is a side view of the entire waste cutting apparatus according to the present invention, FIG. 2 is a front view showing the same mechanism,
3A and 3B show a state in which waste is inserted in a normal direction from a waste insertion slot. FIG. 3A is a plan view of a main part, and FIG.
Is a side view of the main part. 4A and 4B show a state in which the waste is inserted in the reverse direction from the waste insertion slot. FIG. 4A is a plan view of the main part, and FIG. 4B is a side view of the main part. 5A and 5B are side views of a main part for explaining the pivoting operation of the flapper. FIG. 5A shows a state where the flapper is supported in a horizontal state, and FIG. 5B shows a state where the support is released. FIG. 6 is a front view of a main part for explaining a state of supporting the flapper, and FIG. 7 is a plan view of the cutting part.

In FIG. 1, a waste cutting device indicated generally by reference numeral 1 is provided with a substantially rectangular parallelepiped housing 2.
Above the front plate 3 of the housing 2, a rectangular waste insertion port 4 is provided. In FIG. 3B, reference numeral 5 denotes a door, which is rotatably supported about a shaft 7 provided on the back side of the front plate 3 via a hinge member 6 so that the waste insertion port 4 is located outside. And a handle 8 is provided. Reference numeral 9 denotes a detection switch, which is operated by the hinge member 6 when the door 5 closes the waste insertion slot 4, and sends out a signal for operating a solenoid 20, which will be described later.

In FIG. 3, reference numeral 10 denotes a plastic bottle as waste, which is formed in a substantially rectangular cylindrical shape and has a large bottom portion 10a and a large body portion 10b, and a small-diameter drinking port 10c at a tip portion. It is formed by a tapered portion 10d connecting the drinking spout 10c and the body 10b. A reverse insertion restricting member 11 is attached to the inside of the front plate 3 corresponding to the waste insertion opening 4, and the reverse insertion restricting member 11 is formed to be slightly larger than the outer shape of the plastic bottle 10 in plan view. ing. That is, the reverse insertion restricting member 11
Wide portion 11a corresponding to body 10b of plastic bottle 10
And a tapered portion 11b corresponding to the tapered portion 10d of the PET bottle 10 and a narrow portion 11c corresponding to the drinking mouth 10c, and the lower portion is open.

The reverse insertion restricting member 11 is directed inward toward the inside of the housing 2 so that the tapered portion 11b and the narrow portion 11c are located at positions separated from the waste insertion slot 4. It is attached inside the face plate 3. Therefore, as shown in FIG.
Is inserted into the waste insertion slot 4 from the side of the spout 10c, the tapered portion 10d of the plastic bottle 10 and the spout 10c
The tapered portion 11b of the reverse insertion restricting member 11 and the narrow portion 11
c so that the bottom 10 a of the plastic bottle 10 does not protrude from the waste insertion slot 4. On the other hand, when the bottom 10 a of the plastic bottle 10 is inserted from the waste insertion slot 4 as shown in FIG. 4A, the bottom 10 a is locked by the tapered portion 11 b of the reverse insertion restricting member 11. Then, the drinking port 10 c of the plastic bottle 10 is projected from the waste insertion port 4. That is, the tapered portion 11b and the narrow portion 11c of the reverse insertion restricting member 11 function as means for identifying the insertion direction of the PET bottle 10.

In FIG. 1, a cylindrical hopper 13 having an open top and bottom is provided below the reverse insertion regulating member 11,
The lower portion of the front plate of the hopper 13 is inclined toward the rear plate 13b to form a guide portion 13a. That is, the interval between the guide portion 13a and the rear plate 13b is formed so as to be gradually narrowed downward, and is directed toward the point F of the pair of rotary blades 29, 30 which will be described later, facing each other. Is provided. A flapper 14 as a support member for temporarily supporting the plastic bottle 10 inserted into the reverse insertion restricting member 11 is provided at an opening above the hopper 13.

That is, in FIG. 5, the flapper 14 is formed in a flat plate shape, and is supported so as to be rotatable around a shaft 15 which is horizontally mounted on the upper end portion of the hopper 13 on the side of the waste insertion port 4. . Reference numeral 16 denotes a solenoid fixed to the hopper 13, and a rod 17 is pivotally connected to a shaft 19 laid on one end of the flapper 14 via a link member 18. Therefore, the solenoid 16 is operated to move the rod 17
Is retracted, as shown in FIG.
4 rotates counterclockwise in the figure around the shaft 15 as a rotation center,
It is held in a horizontal state, and is positioned below the opening of the reverse insertion restricting member 11. When the solenoid 16 is deactivated, the flapper 14 rotates clockwise about the shaft 15 by its own weight, and stops at the forward end of the rod 17, as shown in FIG. It will be in a state of hanging down diagonally. As shown in FIG. 1, a vertical distance L between the lower end of the hanging flapper 14 and a point F facing the pair of rotary blades 29 and 30 is slightly larger than the entire length of the plastic bottle 10. It is formed so that it becomes.

In FIG. 2, a solenoid 2 as a driving means for temporarily holding the horizontal state of the flapper 14 is provided outside the upper part of the hopper 13 on the side of the flapper 14.
0 is provided via the bracket 21. As shown in FIG. 6, a pin 23 is connected to a rod 22 of the solenoid 20, and the pin 23 is movable in a horizontal direction, that is, in the direction of arrow AB in the figure by a guide member 24 fixed on a bracket 21. It has been guided to be. The hopper 13 is provided with a fitting hole 13c, and when the rod 22 advances, the pin 23 is inserted into the fitting hole 13c.
From the hopper 13, and supports the lower end of the flapper 14, as shown in FIG. 5 (a), to keep the flapper 14 horizontal.

In FIG. 1, below the lower opening of the hopper 13, a pair of rotary blades 2 whose outer peripheral surfaces face each other is formed.
9 and 30 are rotatably supported by the bracket 28. As shown in FIG. 7, a plurality of rotary blades 29 and 30 are axially attached to shafts 31 and 32 via spacers 33 and 34 at equal intervals in the axial direction.
9 and 30 are spacers 3 so that they are staggered.
4,33. Gears 35 and 36 meshing with each other are mounted on the shafts 31 and 32, respectively.
1, a sprocket 36 is axially mounted, and a chain 3 is attached to the sprocket 36 and a sprocket 38 of the motor 37.
9 is stretched. Therefore, when the motor 37 is rotated, the sprocket 36 is rotated via the chain 39, so that the gears 35, 36 are rotated, and the rotary blades 29, 3 are rotated.
0 rotates in the directions of arrows C and D in FIG. 40 is the rotary blade 2
It is a cutting waste storage box provided below 9, 30.

Next, the cutting operation of the waste cutting apparatus having such a configuration will be described. As shown in FIG.
The rod 22 of the solenoid 20 advances, the flapper 14 is held in a horizontal state by the pin 23 as shown in FIG. 5A, and the solenoid 16 is in a non-operating state. In this state, as shown in FIG. 1, the handle 8 of the door 5 is gripped, the door 5 is opened, and the plastic bottle 10 is inserted into the opened waste insertion slot 4 in a normal direction, that is, from the side of the drinking spout 10c. When inserted into the regulating member 11, the plastic bottle 10 is fitted to the reverse insertion regulating member 11, as shown in FIG.

Therefore, the bottom 10 of the plastic bottle 10
Since a does not protrude from the waste insertion slot 4 and the door 5 closes the waste insertion slot 4 as shown in FIG. 2B, the detection switch 9 is operated by the hinge member 6.
The operation of the detection switch 9 causes the rod 22 of the solenoid 20 to retreat in FIG. 6, so that the pin 23 moves in the direction of arrow A in the figure, and the support of the flapper 14 is released. Hangs obliquely downward as indicated by a two-dot chain line. Therefore, the lower part of the reverse insertion restricting member 11 is opened, and the PET bottle 10 slides down on the flapper 14 from inside the reverse insertion restricting member 11 and falls downward in the hopper 13.

At this time, the spout 10 of the plastic bottle 10
c, that is, the flapper 14 rotates downward about the shaft 15 on the side of the waste insertion port 4 as a rotation center, so that the plastic bottle 10 falls with the drinking port 10c side directed downward surely, For this reason, the drinking spout 10c can be surely secured to the rotary blade 29,
Bites at 30. Here, since the distance L between the point F of the rotating blades 29 and 30 facing each other and the lower end of the hanging flapper 14 is slightly longer than the entire length of the plastic bottle 10, the spout 1
The PET bottle 10 in which 0c has dropped to the point F is the bottom 10a.
Are separated from the flapper 14 and fall into the guide portion 13a of the hopper 13. Therefore, the rotary blades 2 in which the plastic bottles 10 face each other by the guides 13a
The plastic bottle 10 is guided from the small-diameter drinking spout 10c to the rotary blades 29, 3 because the plastic bottle 10 is guided to the point F which is opposed to the parts 9, 30.
Biting to 0 improves biting. In addition, since the plastic bottle 10 is guided by the guide portion 13a even during the cutting, the plastic bottle 10 is guided to the point F where the pair of rotary blades 29 and 30 face each other, and the cutting efficiency is good and the cutting time is shortened. As described above, since the rotation of the flapper 14 and the drop of the plastic bottle 10 are automatically performed by the operation of the detection switch 9, the usability is improved. Further, since the door 5 for opening and closing the waste insertion opening 4 is also used to operate the detection switch 9, not only the number of parts but also the number of assembling steps for assembling new parts is reduced.

When the bottom 10a of the plastic bottle 10 is separated from the lower end of the hanging flapper 14, this is detected by detecting means (not shown). In FIG. 5, the solenoid 16 is activated and the rod 17 is retracted. The flapper 14 returns to a horizontal state as shown in FIG. At the same time, when the solenoid 20 is operated and the rod 22 advances in FIG. 6 and the pin 23 supports the flapper 14 and is supported by the pin 23, the solenoid 16 in FIG. Until the cutting of the dropped plastic bottle 10 is completed, the solenoid 20 is kept in the operating state and the pin 23 is kept in the normal state even if the next plastic bottle 10 is inserted in the normal direction into the reverse insertion regulating member 11. 6 is controlled so as not to move in the direction of arrow A.

Next, as shown in FIG. 4A, when the plastic bottle 10 is inserted into the waste insertion port in the reverse direction, that is, the PET bottle 10 is inserted into the waste insertion port 4 from the bottom 10a of the plastic bottle 10. When 10 is inserted, the bottom 10 c is locked to the tapered portion 11 b of the reverse insertion preventing member 11, so that the drinking spout 10 c projects from the waste insertion opening 4. Therefore, as shown in FIG.
Can not close the waste insertion slot 4
The detection switch 9 is not operated by the hinge member 6. For this reason, the solenoid 20 does not operate in FIG. 6 and the state in which the flapper 14 is supported by the pin 13c is maintained, so that the plastic bottle 10 in the reverse insertion member 11 falls to the rotary blades 29, 30. There is no. As described above, the rotating blades 29 and 30 are provided with the drinking spout 10c.
Since only the PET bottle 10 pointing downwards falls, the biting of the rotary blade can be improved without the need for a conventional pushing means. Therefore,
The size of the device is not increased, the number of parts is reduced, and the manufacturing cost is reduced.

In the present embodiment, the detection switch 9 for detecting that the door 5 is closed is used for detecting that the plastic bottle 10 is inserted in the normal direction into the reverse insertion restricting member 11. However, a detection switch such as an optical sensor or a limit switch may be provided in the tapered portion 11b of the reverse insertion restricting member 11. When the PET bottle 10 is inserted into the reverse insertion restricting member 11 in the normal direction, the door 5 closes and the detection switch 9 detects this, so that the flapper 14 is rotated. It is not limited to. That is, a button for manually rotating the flapper 14 is provided without providing the door 5 and the detection switch 9, and the operator can set the bottom 10 of the PET bottle 10.
After confirming the normal state where a does not protrude from the waste insertion port 4, the operator himself may press the button to rotate the flapper 14.

In order to drop the mouth 10c of the PET bottle 10 downward, the waste insertion port 4
The rotation is performed by the flapper 14 which is rotatable around the shaft 15 provided on the side, but the invention is not limited to this.
For example, the plastic bottle 10 may be supported by two retractable shafts that cross the lower side of the plastic bottle 10, and the shaft separated from the waste insertion port 4 may be positioned lower than the other shaft. Further, the reverse insertion restricting member 11 is formed by the wide portion 11a, the tapered portion 11b, and the narrow portion 11c. However, if the tapered portion 11b and the narrow portion 11c for identifying the drinking port 10c of the plastic bottle 10 are provided. Well, the wide portion 11a may be provided on the flapper 14,
Various design changes are possible. In addition, although the waste is the PET bottle 10, it is essential that the waste be provided with a tapered portion at one end.

[0024]

As described above, according to the first aspect of the present invention, there is no need for a pushing means or the like for improving the bite of the waste on the rotary blade, so that the apparatus is downsized. At the same time, the number of parts is reduced, and the manufacturing cost is reduced.

According to the second aspect of the present invention, the waste inserted in the normal direction into the reverse insertion restricting means is automatically dropped on the rotary blade by being detected by the detecting means. , The usability is improved.

According to the third aspect of the present invention, the door which opens and closes the waste insertion slot is also used for detecting the normal insertion of waste, so that not only the number of parts is reduced but also the number of parts is reduced. The number of man-hours is also reduced.

According to the fourth aspect of the present invention, since the tapered portion of the waste is reliably guided to the rotary blade, the bite of the waste to the rotary blade is improved.

According to the fifth aspect of the present invention, the waste is reliably guided to the rotary blade at the tapered portion, and the leading end of the waste is guided to the rotary blade even during cutting, so that the waste rotary blade is formed. The bite to the surface is improved.

[Brief description of the drawings]

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

FIG. 2 is a front view showing a mechanism section in the waste cutting device according to the present invention.

FIG. 3 shows a state in which waste is inserted in a normal direction from a waste insertion slot in the waste cutting apparatus according to the present invention. FIG. 3A is a plan view of a main part, and FIG. Is a side view of the main part.

FIG. 4 shows a waste cutting device according to the present invention, in which waste is inserted in a reverse direction from a waste insertion slot,
FIG. 1A is a plan view of a main part, and FIG. 1B is a side view of the main part.

FIG. 5 is a side view of a main part for explaining a rotating operation of the flapper in the waste cutting apparatus according to the present invention, wherein FIG. 5A shows a state where the flapper is supported in a horizontal state, and FIG. ) Indicates a state where support is released.

FIG. 6 is a front view of a main part for describing a state of supporting the flapper in the waste cutting device according to the present invention.

FIG. 7 is a plan view of a cutting section in the waste cutting device according to the present invention.

[Explanation of symbols]

1 ... waste cutting device, 4 ... waste insertion port, 5 ... door, 9 ...
Detection switch, 10: PET bottle, 10a: Bottom part, 1
0c: drinking spout, 11: reverse insertion restricting member, 11b: tapered portion, 13a: guide portion, 14: flapper, 16, 20 ...
Solenoid, 23 pin, 29, 30 rotary blade, 37
motor.

 ────────────────────────────────────────────────── ─── Continuing from the front page (72) Inventor Isamu Matsunami 4-146, Yawatabara, Yonezawa-shi, Yamagata Prefecture F-Term (reference) 4D065 CA12 CB02 CC01 CC08 DD08 EB14 ED06 ED18 ED35 EE01 EE11

Claims (5)

[Claims] 1. A waste cutting apparatus for cutting cylindrical waste having a tapered end on one end side with a pair of rotating blades facing each other, comprising: a waste insertion port provided above the rotating blade; A reverse insertion restricting means having a tapered one end side of the waste inserted through the waste insertion opening and having an opening at the bottom for identifying the direction of the waste; and a waste inserted into the reverse insertion restricting means. And a release member for releasing the support of the support member. 2. The waste cutting apparatus according to claim 1, further comprising a detecting unit that detects that the waste is inserted in a normal direction into the reverse insertion restricting unit and activates the release unit. Characteristic waste cutting equipment. 3. The waste cutting apparatus according to claim 2, wherein a door for opening and closing the waste insertion port is provided, and the release means is operated by detecting a closed state of the door. Waste cutting equipment. 4. The waste cutting apparatus according to claim 1, wherein the support member is formed in a flat plate shape, the support member is rotatably supported, and a rotation fulcrum of the support member is set to the waste material. A waste cutting device provided on the insertion port side. 5. The waste cutting apparatus according to claim 1, wherein a guide member for guiding waste to the rotary blade is provided between the support member and the rotary blade.