JP2007144506A - Volume reduction treatment system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To perform volume reduction treatment of PET (polyethylene terephthalate) bottles etc., without producing noises. <P>SOLUTION: The volume reduction treatment equipment is equipped with a water tank 7, and a crushing means for crushing the plastic bottle P in a submerged state in the water tank 7. The crushing means is comprised of a conveyance press roller 10 and a press roller 11. The plastic bottle P is fed between the conveyance press roller 10 and the press roller 11 and is then pressed from both sides by the respective rollers 10, 11. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to an apparatus for volume reduction processing of plastic bottles and the like.

  Recently, recycling of plastic bottles has been carried out. Since plastic bottles are large in shape, the transportation cost and storage cost are hindered.

  Conventionally, there is a device that crushes a plastic bottle in a processing site of the plastic bottle, and it is conceivable to reduce the volume by crushing the plastic bottle before transporting or storing the device. However, when crushing plastic plastic bottles, a large noise is generated, and it is an environmental problem to have such devices in ordinary homes, condominiums, convenience stores and the like.

  An object of the present invention is to enable volume reduction processing of a plastic bottle or the like without generating noise.

  In this invention, the volume reduction processing apparatus provided with a water tank and the crushing means which crushes the plastic bottle in the state in the water in the said water tank is provided.

  According to the volume reduction processing apparatus of the present invention, the generation of noise associated therewith can be significantly reduced by crushing the plastic bottle in water. Moreover, the volume reduction processing apparatus of this invention is realizable as a highly functional apparatus which has a paper label removal function and an internal washing function by utilizing the point which processes a plastic bottle in water like embodiment.

  According to the present invention, volume reduction processing for PET bottles and the like can be performed without generating noise, and thus volume reduction processing for PET bottles and the like is concerned about noise even in ordinary households, condominiums, convenience stores, and the like. Can be done without. As a result, recycling of PET bottles and the like is promoted.

  FIG. 1 is a schematic plan view showing the internal configuration of the volume reduction processing apparatus of the present invention, FIG. 2 is a schematic side view of the configuration, and FIG. 3 is a perspective view of a volume reduction processing unit.

  The volume reduction processing apparatus 1 is provided with a volume reduction processing section 4 at the upper part in the apparatus main body case 2, and the lower part is an arrangement space 5 for each of the collection boxes 3 and 3.

  The volume reduction processing unit 4 includes a conveyance press roller (crushing means) 10, a press roller (crushing means) 11, a punching roller 12, and a brush roller 13 arranged in the same direction in a water tank 7. A rotary operating body 16 for discharging the label is attached to the edge. The conveying press roller 10, the press roller 11, the punching roller 12, the brush roller 13, and the rotary operating body 16 are all rotated in a predetermined direction at a set speed by a drive motor (not shown).

  Water is supplied to and drained from the water tank 1 through a water tap and a drain plug (not shown), and a plurality of jet water jet nozzles 18 are provided at the bottom of the water tank 1 so as to jet water flow toward the brush roller 13. It has been.

  The conveyance press roller 10 is made of metal, and on its circumferential surface, conveying locking rods 20 are erected in a plurality of rows along the axial direction at predetermined intervals, and further on the circumferential surface in the axial direction. A plurality of rows of grooves 21 are formed at predetermined intervals located between the locking rods 20 in the orthogonal direction. Further, a polyurethane coat layer is attached to the surface of the conveying press roller 1.

  The press roller 11 is made of metal and is relatively disposed so as to be able to contact the transport press roller 10, and a plurality of press rollers 11 are provided at positions corresponding to the locking rods 20 of the transport press roller 10 in a direction orthogonal to the axial direction on the circumferential surface. A row of grooves 24 is formed, and a plurality of rows of convex shapes 25 are formed at positions corresponding to the grooves 21 of the conveying press roller 10. A polyurethane coat layer is also provided on the surface of the press roller 11.

  The perforating roller 12 is made of metal, and is disposed relative to the conveying press roller 10 on the lower side opposite to the press roller 11, and the peripheral surface of the perforating roller 12 is a key piece 27 for perforating in a plurality of rows along a direction orthogonal to the axial direction. Are protruded at a predetermined interval, and a plurality of rows of grooves 28 are formed at positions corresponding to the respective locking rods 20 of the conveying press roller 10.

  The brush roller 14 has a configuration in which a large number of metal wires are radially implanted around the brush roller 14 and is disposed below the conveying press roller 10 and adjacent to the punching roller 12.

  The rotary operating body 16 is configured by integrally attaching a plurality of bar pieces 31 to the shaft body 30.

  Hereinafter, the operation at the time of use of the volume reduction processing apparatus 1 will be described together with a further detailed configuration.

  When the plastic bottle (plastic bottle) P is introduced from the hopper 40 above the volume reduction processing apparatus 1, it rolls down to the water surface position in the water tank 7 in the horizontal direction. Rolled-down PET bottle P is pulled into the water against the buoyancy by being locked by the locking rod 20 by the conveyance press roller 10 being rotated in the direction of arrow A, and further rotating in the direction of arrow B It is pressed against the perforating roller 12 to be transported and conveyed downward in the pressed state. At that time, the rotation of the conveying press roller 10 and the punching roller 12 is performed without any trouble because the locking rod 20 enters the groove 28.

  While the plastic bottle P is pressed against the punching roller 12 and transported in the pressed state, each of the key pieces 27 of the punching roller 12 bites into the surface of the plastic bottle P and opens a large number of holes. Since the holes are formed in this way, water enters the plastic bottle P from there, and thereby the inside of the plastic bottle P is cleaned as it is transported in the water.

  Furthermore, as the conveyance is continued by the locking rod 20, the PET bottle P comes into contact with the brush roller 13 whose surface rotates in the direction of arrow C. If the paper label is pasted on the surface of the plastic bottle P by the brush roller 13 rotating by this contact, it is peeled off. Since the paper label contains water and is perforated by the perforating roller 12, it is easily scraped off by the brush roller 13. The piece of paper that has been peeled off and has entered the water is sent to the lower side of the punching roller 12 by the jet water flow jetted in the direction of arrow D from each of the jet nozzles 18, and is rotated by the rotary operating body 16 rotated in the direction of arrow E when it floats. It is rolled up and discharged outside. The discharged paper pieces are stored in one collection box 3.

  When the paper label is peeled off, the PET bottle P is further conveyed by the conveying press roller 10 and sent between the press roller 11 rotating in the direction of arrow F, where it is pressed from both sides by the respective rollers 10 and 11. At the same time, as shown in FIG. 4, the PET bottle P is flattened into a flattened shape by the biting of the convex shapes 25 of the press roller 11. In that case, rotation of the conveyance press roller 10 and the press roller 11 is performed without any trouble as the locking rod 20 enters the groove 24 and conversely the convex 25 enters the groove 21.

  Although the shape may be restored only by pressing, the corner portion of the plastic bottle P is reliably destroyed by forming the bite trace 33 by the biting of the convex 25, so there is no fear of the shape restoration. When the plastic bottle P is crushed to be in the above-described form in the air, a great amount of noise is generated. However, the volume reduction treatment device 1 can remarkably reduce the noise generation by crushing in the water.

  In addition, when the plastic bottle P is sandwiched at the beginning of the pressing operation, if the surfaces of the rollers 10 and 11 are metal surfaces, slippage occurs between the surfaces and the PET bottle P surface, so that the pressing operation is smooth. Although it may not be started, the presence of the polyurethane coat layer on the surface of each of the rollers 10 and 11 eliminates slippage and smoothly starts the pressing operation.

  The flat plastic bottle P that has been pressed tends to stick to the transport press roller 10 side, but is peeled off from the transport press roller 10 surface by a scraper 35 having the same form as the discharge guide 41 described later. 11, transported on the top 11, discharged to the outside along the discharge guide 40, and stored in the other collection box 3. As shown in FIG. 1, the discharge guide 41 has a notch 42 through which the convex 25 of the press roller 11 passes, and also has a function as a scraper that peels off the plastic bottle P attached to the press roller 11. The scraper 35 includes a notch through which the locking rod 20 of the transport press roller 10 passes. Each of the collection boxes 3 in which the PET bottles P and the paper pieces are stored is taken out by opening the door 50 of the apparatus main body case 2.

  As described above, just by putting the PET bottle P into the hopper 40, the paper label was peeled off and the inside was cleaned without generating noise, and the volume was reliably reduced without being restored. The reduced volume of the PET bottle P is automatically collected in the collection box 3. This reduced volume product is suitable for recycling because the paper label is peeled off and the interior is cleaned.

  FIG. 2 is a schematic plan view showing the internal configuration of the embodiment of the volume reduction processing apparatus of the present invention   Side structure schematic diagram showing the internal configuration of the embodiment of the volume reduction processing apparatus of the present invention   The perspective view of embodiment of the volume reduction process part of the volume reduction processing apparatus of this invention   The perspective view of the plastic bottle after the process obtained by the volume reduction processing apparatus of this invention

Explanation of symbols

1 Volume reduction processing equipment 10 Conveyance press roller (crushing means)
11 Press roller (crushing means)
P Plastic bottle (plastic bottle)

Claims (1)

A tank,
A volume reduction processing apparatus comprising: crushing means for crushing a plastic bottle in water in the water tank.

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