JP2581097Y2 - Press equipment for volume reduction of waste - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a waste volume reducing press apparatus, which can be used for volume reduction of waste such as empty cans and PET bottles.

[0002]

2. Description of the Related Art In recent years, volume reducing presses capable of crushing waste such as empty cans and PET bottles have been used. According to such a volume reducing press device, a plurality of wastes can be crushed into a small-volume lump (hereinafter, referred to as a compressed lump). Since a large number of dust collection vehicles can be loaded, the amount of waste transportation can be increased without increasing the number of dust collection vehicles, and the efficiency of waste transportation can be improved.

[0003]

However, in the conventional volume reducing press, if the object to be pressed is a PET bottle or the like having high elasticity and high resilience, each bottle in the compressed mass compressed by the press will be used. There is a problem that a so-called spring-back phenomenon occurs in which the material gradually expands with time and eventually the compressed mass is decomposed.

The purpose of the present invention is to operate continuously for a long time.
Also ensure that the springback phenomenon is reliably prevented.
It is to provide a volume reduction press apparatus of that waste.

Means for Solving the Problems In the present invention, the present applicant has enthusiastically studied and found out that the remaining compressed air inside the compressed mass is a factor of the above-mentioned springback phenomenon. In order to eliminate the residual compressed air inside the above-mentioned compressed mass, the present invention has been devised. In particular,
Waste crushed by putting waste into the press room provided inside
Volume reduction press device for crushing the waste
A pressing block provided to be able to advance and retreat with respect to the press chamber.
A lock for pressing the waste of the pressing block.
The pressing surface and the side surface in contact with the pressing surface have grooves as air passages for releasing the air inside the press chamber to the outside.
It is characterized by being formed .

[0005]

According to the present invention, since the press room and the outside communicate with each other through the ventilation path, the air in the waste and in the gap between the wastes is ventilated from the inside of the press room according to the pressing operation. Exhausted to the outside through the road. Thus, even if the press chamber is narrowed by the press operation, the air pressure is maintained at substantially the atmospheric pressure. Therefore, inside the compacted mass which is a small volume by crushing, without squeezing air remains, that such does not occur a spring back phenomenon. here
With the pressing surface of the pressing block and the pressing surface
The grooves on the pressing surface are
Since it is open to the press room side, there is no clogging,
The dust in the groove of
Automatically eliminated. For this reason, clogging or the like occurs in the groove.
Works well even if the press room is slightly dirty
The spring bar
The locking phenomenon is reliably prevented , thereby achieving the above object. In addition, the groove as the ventilation path is clogged.
With sufficient cross-sectional area to exhaust
So that it does not significantly increase
There is no risk of impairing the strength of the block.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to the drawings. FIGS. 1 to 3 show a waste volume reducing press apparatus 1 according to the present embodiment.

[0007] The volume reducing press device 1 includes a main body 10 and a hydraulic engine 20.
Is provided by a hydraulic drive. The main body 10 has a base portion 11 arranged on the bottom portion, and a pair of side plates 12 and the like arranged in parallel at predetermined intervals on both sides in the longitudinal direction of the base portion 11.

The base portion 11 is formed by assembling rectangular members such as channel members having a U-shaped cross section in a rectangular shape. Each of the side plates 12 has a protruding portion 12A extending upward on the left side in FIG.

The main body 10 is provided with a press chamber 30 for crushing waste put between the pair of side plates 12. An engine space 40 for installing the hydraulic engine 20 is provided on the right side of the press room 30 in FIG.
A shutter section 50 for closing the exit 30A of the press chamber 30 is provided.

The press chamber 30 includes a guide plate 31 provided along the bottom surface of the main body 10, a pair of guide plates 32 provided along the inner surface of the side plate 12, and a guide having an arc-shaped inner surface. This is the space surrounded by the board 33. The guide plate 31,
The 32 is removable and can be replaced with a new one when it cannot be used due to wear or the like.

Inside the press chamber 30, a pressing lid 34 for performing vertical pressing and a pressing block 35 for performing horizontal pressing are provided. Above the press room 30, a safety door 13 formed by bending a wire net or the like to form a box is provided to be openable and closable. The closed state of the safety door 13 is detected by a limit switch or the like provided at a closed position. In a state where the safety door 13 is open, the press device 1 is not activated, so that a worker's hand or the like is prevented from being pinched by the pressing lid 34 beforehand. .

The pressing lid 34 is formed of a steel plate or the like, and has a base end rotatably fixed at a position adjacent to the pressing block 35. As a result, the pressing lid 34 is in the upright position A
And a horizontal position B. At this time, the distal end of the pressing lid 34 moves from an intermediate position C located between the upright position A and the horizontal position B while contacting the inner surface of the guide plate 33. Thus, when the pressing lid 34 is located between the intermediate position C and the horizontal position B, the press chamber 30 is closed by the pressing lid 34.

The pressing block 35 advances with respect to the press chamber 30.
It is provided to be able to retreat. More specifically,
The pressing block 35 is a rectangular parallelepiped that slides in a space surrounded by the pressing lid 34 located at the horizontal position B and the guide plates 31 and 32 while being in close contact with the pressing lid 34 and the guide plates 31 and 32.

As shown in FIG. 4, a large number of grooves 36 are formed on the pressing surface 35A of the pressing block 35, both vertically and horizontally.
The groove 36 serves as a guide path for guiding the air pushed out of the waste and reaching the pressing surface 35A to both ends of the pressing block 35 when pressing the waste.

Side surfaces 35B on both sides , which are in contact with the pressing block 35, are surfaces in close contact with the guide plate 32. On the side surface 35B, a plurality of grooves 37 extending along the sliding direction of the pressing block 35 are formed. The groove 37 serves as an air passage for allowing air guided to the groove 36 of the pressing surface 35A and reaching both ends of the pressing block 35 to escape to the outside of the press chamber 30.

Returning to FIGS. 1 to 3, the engine space 40 is provided with a hydraulic unit 21 constituting the hydraulic engine 20, and first and second hydraulic cylinders 22 and 23.

The hydraulic unit 21 appropriately supplies and discharges pressurized oil to and from the first and second hydraulic cylinders 22 and 23 by a control device (not shown) incorporated therein. A series of press operations are automatically performed.

The first hydraulic cylinder 22 has a cylindrical main body 22.
A and a plunger 22B operated by hydraulic pressure. The main body 22A of the first hydraulic cylinder 22 is rotatably fixed to a stay 14 having an H-shaped cross section which is bridged between the side plates 12. The tip of the plunger 22B is rotatably fixed to the back of the pressing lid.

As a result, when the pressing lid 34 reaches the vicinity of the horizontal position B, the driving force of the first hydraulic cylinder 22 is made larger than that of the vicinity of the upright position A. The pressing lid 34 is not opened by the press. By driving the first hydraulic cylinder 22, the opening / closing / pressing operation of the pressing lid 34 is performed.

The second hydraulic cylinder 23 has a structure similar to that of the first hydraulic cylinder 22, and has a cylindrical main body 23.
A and a plunger 23B. The main body 23A of the second hydraulic cylinder 23 is provided with a holder installed between the side plates 12.
Fixed at 15. The tip of the plunger 23B is fixed to the back surface of the pressing block 35. By the driving of the second hydraulic cylinder 23, the pressing operation of the pressing block 35 is performed.

The shutter section 50 includes a shutter 51 movably mounted up and down, a third hydraulic cylinder 52 for driving the shutter 51, and a guide member for guiding the shutter 51.
53.

The shutter 51 is a thick rectangular surface material that does not deform even when the pressing force of the pressing block 35 is applied. The up and down movement of the shutter 51 opens and closes the outlet 30A of the press chamber 30.

The third hydraulic cylinder 52 has the same structure as the first and second hydraulic cylinders 22 and 23. The third hydraulic cylinder 52 is disposed on each side of the shutter 51, one end of which is located above the shutter 51. Connected to the rim.

The guide member 53 has a vertically long groove provided on a vertically long member. Groove 53 of guide member 53
Edges are fitted to both sides of the shutter 51 at A, whereby the moving direction of the shutter 51 is restricted only in the up-down direction.

Next, the operation of this embodiment will be described. First,
With the safety net 13 opened in advance, as shown in FIG. 5A, a waste 16 such as an empty PET bottle is put in the press room 30, and the safety net 13 is closed.

Next, the power is turned on and the press device 1 is started. As a result, the first hydraulic cylinder 22 operates,
As shown in FIG. 5B, a vertical press is performed to crush the waste 16 from above, thereby flattening the waste.

When the pressing in the vertical direction is completed, the second hydraulic cylinder 23 operates, and as shown in FIG.
A horizontal press is performed to crush the waste 16 from the lateral direction, and the flat waste 16 is converted into a rectangular rod-shaped compressed mass 17.

At this time, even if the waste 16 is in close contact with the pressing surface 35A of the pressing block 35, the air pushed out from the inside of the waste 16 passes through the groove 36 of the pressing surface 35A, and After reaching both ends and further escaping to the outside of the press chamber 30 through the groove 37 on the side surface 35B, compressed air remains inside the compressed mass 17 formed by crushing the waste 16. Disappears.

Subsequently, the pressing force applied to the shutter 51 is removed by slightly retreating the plunger 23B of the second hydraulic cylinder 23, and then the shutter 51 is opened. Then, the second hydraulic cylinder 23 operates again, and FIG.
As shown in (D), the compressed lump 17 formed by crushing the waste 16 is pushed out of the press chamber 30 to the outside, and the pressing operation is completed.

According to the above-described embodiment, the following effects can be obtained. That is, since the inside and the outside of the press chamber 30 are communicated with each other by the groove 37, the inside air is exhausted from the inside of the press chamber 30 to the outside through the groove 37 even during the pressing. For this reason, the air pressure in the press chamber 30 is maintained at substantially the atmospheric pressure, and no compressed air remains in the compressed mass 17 formed by compressing the waste 16 with the press, thereby preventing the springback phenomenon. Can be prevented.

Further, a large number of grooves 36 are formed in the pressing surface 35A of the pressing block 35 vertically and horizontally, and the waste 16 being pressed is pressed against the pressing surface 35A.
Even if it comes into close contact with A, the air pushed out from the waste 16 easily reaches the both ends of the pressing block 35 through the groove 36, so that the exhaust effect of the groove 37 of the press chamber 30 is enhanced, Compressed air no longer remains in the lump, and the effect of preventing the springback phenomenon can be improved.

Further, the side surface 35 of the moving pressing block 35
Since the groove 37 is provided in B to form an air passage, dust clogging the groove 37 is automatically removed by the movement of the pressing block 35.
As a result, clogging or the like does not occur in the groove 37 and the press chamber
It can work well even if 30 is dirty. What
In addition, groove 37 as an airway does not clog,
As long as it has enough cross-sectional area to exhaust air,
And the strength of the pressing block 35 is lost.
There is no danger.

When the compressed mass is discharged, the plunger 23B of the second hydraulic cylinder 23 is slightly retracted to remove the pressing force applied to the shutter 51, and then the shutter 51 is operated. The second hydraulic cylinder 23 pushes and discharges the compressed mass 17 so that the operation of discharging the compressed mass 17 that has been pressed can be reliably performed.

Further, when the safety door 13 is open,
Since the press device 1 is not operated and the hand or the like of the worker can be prevented from being caught in the pressing lid 34, it can be handled even by a non-dedicated worker, so that it can be used in restaurants and homes. It can also be used in kitchens.

The present invention is not limited to the above-described embodiment, but includes the following modifications. That is, the volume reducing press 1 has a press room 30 inside.
Not only the airway to let only the air escape, for example,
A drain port that penetrates the part on the bottom or side of the press room 30
May be provided. This allows liquid to enter inside.
Waste volume can be reduced.

[0036]

[0037]

[0038]

Further, a pressing lid 34 for performing vertical pressing.
The device is not limited to a device having a base end rotatably fixed, but may be a device which can be moved up and down in a state where a surface for pressing waste is horizontal.

The pressing direction is not limited to the horizontal direction and the vertical direction shown in the above embodiment.
Two directions orthogonal to each other on the same horizontal plane, two directions orthogonal to each other within the same vertical plane, or the like may be used.

It should be noted that the present invention is not limited to a volume reducing press apparatus that performs pressing in two directions, and for example, performs a volume reducing press apparatus that performs pressing in only one direction in the horizontal direction, or performs a three-way press in the vertical and horizontal directions. It can also be applied to volume reduction presses.

[0042]

As described above, according to the present invention, since the air in the compressed mass escapes due to the exhaust in the press chamber, the occurrence of the springback phenomenon can be prevented.

[Brief description of the drawings]

FIG. 1 is a sectional view showing an entire embodiment of the present invention.

FIG. 2 is a plan view of FIG.

FIG. 3 is a side view taken along line III of FIG. 1;

FIG. 4 is an enlarged perspective view showing an air passage according to the embodiment.

FIG. 5 is a schematic diagram for explaining the operation of the present embodiment.

[Explanation of symbols]

 1 Press equipment for volume reduction of waste 30 Press room 37 Groove which is an air passage

Claims (1)

(57) [Scope of request for utility model registration] 1. A volume reduction press apparatus of the waste press placed crush waste press chamber provided therein, the waste
Provided to be able to advance and retreat with respect to the press chamber to crush
Press block, and the press block
Pressing surface for pressing waste and the side in contact with this pressing surface
A groove is formed in the surface as a ventilation path for allowing air inside the press chamber to escape to the outside.