KR100875241B1 - Apparatus for eliminating label of pet bottle - Google Patents

Abstract

An apparatus for removing label for PET bottle by jetting washing water with high pressure is provided to have a high recycling rate without a damage that a narrow part of the PET bottle comes off at a label removing process. An apparatus for removing label for PET bottle contains a hopper(100) in which the PET bottle is adopted, a PET bottle conveying unit(200) in which a loader(205) is prepared and which mounts the PET bottle supplied from the hopper, a label removing unit(300) removing the label of an outer side of the PET bottle by jetting washing water with high pressure to the PET bottle within a loader and a screen(400) which transfers the PET bottle to a post unit after failing the residue label and residue washing water at the PET bottle supplied from the PET bottle conveying unit.

Description

Applicator for eliminating label of PET bottle

1 is an internal cross-sectional view showing an embodiment of a label removing device for plastic bottles according to the present invention.

Figure 2 is a side view showing an embodiment of a plastic bottle label removing apparatus according to the present invention.

3 is a perspective view showing an embodiment of a mounting unit according to the present invention.

4 is a plan view showing one embodiment of a screen according to the invention.

5 is a front view showing one embodiment of a screen according to the invention.

<Description of the symbols for the main parts of the drawings>

100: Hopper 105: Hinge

200: transfer unit 205: mounting portion

210: partition 215: sprocket

220: chain 225: motor

230: bar member 300: label washing unit

305: injection nozzle 310: pump

315: water tank 320: filter

325 cover 400 screen

405: drive motor 410: drive chain

415: driven chain 420: outermost axis of rotation

422: axis of rotation 425: disk

430: support surface 450: drip tray

The present invention relates to a label removing apparatus for a synthetic resin container, and more particularly, to an apparatus for separating and removing a label attached to an outer surface of a conventional synthetic resin container made of a material such as PET or PT from a synthetic resin container. .

For convenience of description below, the label removing device will be described as being limited to the label removing device for plastic bottles.

In general, plastic bottles are widely used as disposable containers, food containers or beverage containers throughout the industry, and as a result, plastic bottles are also increasing.

Such a rapidly increasing waste plastic bottle is required to be collected and recycled as a resource, and one of the recycling processes is a device for removing a label attached to the outer surface of the plastic bottle.

Republic of Korea Patent Application Publication No. 2000-0058860 horizontally installed when the container is put into the fixed cylinder to rotate the fixed cylinder in the interior to be transported forward by the transfer screw band of the rotating cylinder, and the fixed cylinder when The peeling pins fixed to the rotating cylinder can separate the label from the container.When discharging the container and the label separated from each other, the label can be removed by the blower and only the container can be transferred to the next process by a separate transfer device. Disclosed is a label removal apparatus that can be used.

However, the conventional label removal apparatus configured as described above has the following problems.

First, due to the friction with the stripping pin, the neck portion of the plastic bottle fell off during the label removal process, there was a problem that the recycling rate of the plastic bottle drops.

Second, since the label is removed by friction with the stripping pin, the label is not removed in a desirable state when the container is crushed or a plurality of plastic bottle containers are stacked in the cylinder.

Third, the plastic bottle transfer and label removal is made in one cylinder, so the plastic bottle is not easily transported, there is a problem that the work efficiency is reduced.

Lastly, in order to remove the label mixed with the plastic bottle, a separate blower must be provided, so additional power is required and the equipment is enlarged.

The present invention is to solve the above problems, an object of the present invention to provide a label recycling apparatus for plastic bottles with a high recycling rate without damage, such as falling off the neck of the plastic bottle during the label removal process.

Another object of the present invention is to provide a label removing apparatus for plastic bottles, in which labels and foreign substances are removed in a desirable state irrespective of the shape of plastic bottles introduced into the label removing apparatus.

Still another object of the present invention is to provide a label removing apparatus for plastic bottles having a high work efficiency because the plastic bottle conveying and label removing processes are not interfered with each other.

The present invention is a hopper that accommodates plastic bottles; A plastic bottle conveying unit provided with a mounting portion for dividing and mounting the plastic bottles supplied from the hopper by a predetermined amount; A label removal unit for removing the label on the outer surface of the plastic bottle by spraying the washing water at a high pressure toward the plastic bottle in the mounting portion; And a screen for dropping the residual washing water and the remaining label on the plastic bottle supplied from the plastic bottle conveying unit, and then transferring the plastic bottle to the next unit.

Preferably, the label removal unit, a plurality of injection nozzles for spraying the high pressure toward the plastic bottle wash water; A pump for pumping the washing water with the spray nozzle; And an upper open water tank for supplying the washing water to the pump and installed directly below the plastic bottle transfer unit.

Preferably the screen comprises a plurality of rotational axes; Disks provided at predetermined intervals on the respective rotating shafts; a driving motor for driving the respective rotating shafts; A drive chain which connects the drive motor and the best rotating shaft; And a driven chain that interconnects the best rotating shaft and the remaining rotating shaft.

Hereinafter, with reference to the accompanying drawings an embodiment of a label removing device for a plastic bottle according to the present invention will be described in detail.

1 is an internal cross-sectional view showing an example of a plastic bottle label removing apparatus proposed in this embodiment, the plastic bottle label removing apparatus according to the present embodiment is a hopper (100) containing the plastic bottle; Plastic bottle transfer unit 200; A label removing unit 300; And a screen 400.

2 is a side view showing an example of a label removing device for plastic bottles proposed in the present embodiment.

Plastic bottles of various sizes and shapes are delivered to the plastic bottle transfer unit 200 through the hopper 100.

3 is a perspective view showing an example of a mounting portion proposed in this embodiment.

The plastic bottle conveying unit 200 is preferably provided with a mounting portion 205 for mounting a predetermined amount of the plastic bottle supplied from the hopper 100.

The mounting portion 205 is preferably formed integrally with the plastic bottle transfer unit 200, it is preferable to include several partitions (210).

The number, shape, and size of the mounting portion 205 and the partition 210 are preferably selected in consideration of the overall capacity, removal capacity, etc. of the plastic bottle label removing device.

The plastic bottle conveying unit 200 may be composed of a common conveying means such as a conveying conveyor, at least one sprocket 215 is installed at a predetermined distance; A chain 220 connected to the sprocket 215 and installed to move in a conveying direction; At least one rod member connected between the chain and the chain and fixed to the chain; And a motor 225 connected to one side of the sprocket by a belt to transmit power.

The rod member is connected to the chain and the chain provided at a certain distance to form a conveying support surface of the plastic bottle, the thickness, spacing and material of the rod member can be configured as usual, in particular the transfer capacity, washing capacity and the plastic bottle It is preferable to select in consideration of the size and the like.

The rod member is preferably formed at a predetermined interval so that the plastic bottle to be transported does not flow out even under high pressure washing water, and forms a gap to form a predetermined drainage space so that the washing water, the removed label, and the foreign substance can flow out to the bottom. It is desirable to.

At this time, the bottle via the hopper 100 continuously, in the process of injecting into the bottle transfer unit 200, the bottle takes between the outlet surface of the hopper 100 and the mounting portion 205 of the bottle transfer unit Since the front surface, which is located on the conveying direction line of the plastic bottle conveying unit, is preferably the hinge surface 105 of the exit surface of the hopper for continuous smooth conveyance.

Therefore, since the hinge surface 105 rotates from side to side, the plastic bottle is continuously and smoothly transferred without being caught between the hopper 100 and the mounting portion 205 of the transfer unit.

The PET bottle dividedly mounted on the mounting unit 205 by a predetermined amount moves continuously through the transfer unit, and the label adhered to the outer surface of the PET bottle by the label removing unit 300 is separated and removed.

In the present embodiment, the label removing unit 300 includes a plurality of injection nozzles 305 for spraying high pressure spray water toward a plastic bottle mounted on the mounting unit 205; A pump 310 for pumping the washing water into the injection nozzle 305; And a water tank 315 of an open top type, which supplies washing water to the pump and is installed directly below the plastic bottle transfer unit.

The injection nozzle 305, the pump 310 and the water tank 315 may be configured as a conventional one, the number and capacity of the injection nozzle, pump and water tank is transferred to the overall capacity of the label removing device for plastic bottles It is preferable to select in consideration of the capacity or removal capacity.

In the present embodiment, the label removing action is performed by using a spray nozzle for spraying high-pressure washing water, thereby preventing damage to the plastic bottle and removing the label and foreign matter in a desirable state for the next process regardless of the position and shape of the plastic bottle accommodated in the mounting part. .

The number, position and spacing of the spray nozzles are preferably selected in consideration of the transfer capacity and the label removing capacity, and it is preferable to continuously remove the label and foreign substances by several spray nozzles provided along the transfer line.

The conveying support surface of the plastic bottle conveying unit 200 is installed so that several drainage spaces are formed so that the label and washing water separated from the plastic bottle can fall into the water tank 315 installed directly below the plastic bottle conveying unit. It is preferable.

At this time, the size and location of the drainage space is preferably formed to prevent the outflow of the plastic bottle, it is preferable to select according to the amount of washing water sprayed.

In this embodiment, the water tank 315 is connected to the pump 310, it is preferable to recover the flushing water from the plastic bottle transfer unit 200 and to re-supply to the pump (310).

In this case, the upper opening of the water tank 315 may further include a filter 320 in order to filter the label and foreign matter contained in the wash water falling from the plastic bottle transfer unit 200.

The filter 320 may be formed of a conventional filter net, and the like, by filtering the label and the foreign matter separated from the plastic bottle, and supplying the washing water recovered in the water tank to the pump and recycling the washing water.

In addition, it is preferable to further include a cover 325 which is installed directly above the mounting portion 205 in order to prevent the plastic bottle from leaking to the outside by the high pressure washing water.

As shown in FIG. 3, the cover 325 is installed at a predetermined interval directly above the mounting portion, and installs a spray nozzle in the cover to spray high-pressure spraying the washing water toward the plastic bottle accommodated in the mounting portion 205. It is preferable.

The cover 325 may be configured as a conventional one, it is preferable that the partition 210 is installed at a predetermined interval so that friction does not occur when moving.

The plastic bottle with the label removed by the high pressure sprayed washing water is sent to the screen 400.

The screen 400 is preferably installed lower than the plastic bottle transfer unit in the lower portion of the plastic bottle transfer unit 200 dropping the plastic bottle from the mounting portion 205.

4 is a plan view showing an example of the screen proposed in this embodiment, Figure 5 is a front view showing an example of the screen proposed in this embodiment, the screen according to this embodiment has a plurality of rotating shafts (420, 422) ; Disks 425 provided on the respective rotating shafts at predetermined intervals; A driving motor 405 for driving the respective rotating shafts; A drive chain 410 connecting the drive motor 405 and the best rotating shaft 420; And a driven chain 415 which interconnects the uppermost rotational shaft 420 and the remaining rotational shaft 422.

In the present embodiment, the screen 400 removes the residual washing water and the residual label from the plastic bottle supplied from the plastic bottle conveying unit 200, and then transfers the plastic bottle to the next process.

The rotary shafts 420 and 422 and the disk 425 may be configured as usual, and the size, number and shape of the rotary shaft and the disk are selected in consideration of the transport capacity or the removal capacity of the label removing device for plastic bottles. It is desirable to.

In order to drive the respective rotating shafts, it is preferable to include a driving motor 405, in order to transfer power to each of the rotating shafts by using a single motor, connecting the driving motor 405 and the outermost rotating shaft 420 It is preferable that the drive chain 410 and the driven chain 415 for continuously connecting the best side rotating shaft 420 and the remaining rotating shaft 422 mutually.

At this time, it is preferable to have a support surface 430 connected to one side and the other side of the rotary shafts to support the rotational movement of the rotary shafts, and the support surface 430 is formed long in the height direction so that the residual label and residual washing water of the plastic bottle It is desirable to prevent the plastic bottle from spilling out during the screening process.

In addition, the rotating shaft and the disk is preferably installed to maintain a predetermined interval so that the plastic bottle does not flow downward.

In addition, the rotating shaft and the disk is preferably installed so that the drainage space is provided to flow out the residual washing water and the residual label to the lower screen.

In the present embodiment, it is preferable that the bottom of the screen 400 further includes a drip tray 425 for collecting the residual wash water and the residual label.

The screen 400 serves to drop off the residual washing water and the residual label on the plastic bottle while transferring the plastic bottle supplied from the transfer unit to a next process, and using the driving motor 405 to rotate the best side rotating shaft 420. It is preferable to rotate, and the best rotating shaft 420 and the remaining rotating shaft 422 are connected to each other continuously through the driven chain 415, to transmit power to one drive motor.

At this time, several disks formed at predetermined intervals on the rotating shaft rotate in the same direction as the rotating shaft to deliver the plastic bottle to the next process.

The screen preferably transmits vibration to each of the rotating shafts and disks during the rotation of the drive motor 405 to easily drop off the residual label and residual wash water from the plastic bottle.

In addition, the support surface 430 is formed high to prevent the plastic bottle from leaking to the outside in the process of selecting the residual label and the washing water on the plastic bottle while the disk and the rotating shaft vibrates.

Preferred embodiments of the present invention described above are disclosed for purposes of illustration, and those skilled in the art having various ordinary knowledge of the present invention will be able to make various modifications, changes, and additions within the spirit and scope of the present invention. Modifications and additions should be considered to be within the scope of the following claims.

As described above, the plastic bottle label removing apparatus according to the present invention by spraying the high pressure washing water to remove the label and foreign matter in a preferred state for the next process regardless of the shape or size of the plastic bottle.

In addition, since the high pressure washing water is used, the plastic bottle is pre-washed in a sanitary state.

In addition, the recycling rate of the plastic bottle is high because no damage is caused to the plastic bottle during the label removal process.

Claims (7)

Hopper 100 is accommodated plastic bottles; A plastic bottle conveying unit (200) provided with a mounting portion (205) for dividing and mounting the plastic bottles supplied from the hopper (100) by a predetermined amount; Label removal unit 300 for removing the label on the outer surface of the plastic bottle by spraying the high pressure toward the plastic bottle in the mounting portion 205; And a screen (400) for dropping the residual washing water and the residual label from the plastic bottle supplied from the plastic bottle conveying unit (200) and transferring the plastic bottle to the next unit. The hopper 10 has a front surface located on the conveying direction line of the plastic bottle conveying unit 200 of the exit surface is composed of a hinge surface, The plastic bottle transfer unit 200, at least a pair of sprockets are rotated via a chain, which is installed at a predetermined distance; A plurality of rod members connected between the chain and the chain to form a transfer paper surface of a plastic bottle; A motor for transmitting rotational power to the sprocket; And a partition partitioning the mounting portion. delete The method of claim 1, The label removal unit 300, Several injection nozzles 305 for spraying the washing water at high pressure toward the plastic bottle; A pump 310 for pumping the washing water with the injection nozzle; And Supplying the washing water to the pump, the water bottle 315 of the upper opening type which is installed directly below the plastic bottle transfer unit; Label removing device for plastic bottles comprising a. The method of claim 3, wherein The upper opening of the water tank 315, the plastic bottle label removing device, characterized in that it further comprises a filter 320 for filtering foreign matter contained in the wash water falling from the plastic bottle transfer unit (200). The method of claim 1, And a cover 325 disposed above the mounting unit 205 to prevent the outflow of the plastic bottle in the mounting unit. The method of claim 1, wherein the screen 400 is Multiple rotating shafts 420 and 422; Disks 425 provided on the respective rotating shafts at predetermined intervals; A driving motor 405 for driving the respective rotating shafts; A drive chain 410 connecting the drive motor 405 and the best rotating shaft 420; And And a driven chain (415) connecting the best rotating shaft (420) and the remaining rotating shaft (422) to each other. The method according to any one of claims 1 and 3 to 6, Label removing device for plastic bottles, characterized in that further comprises a drip tray (450) installed in the lower portion of the screen (400).

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