A kind of label method for cleaning of plastic bottle
Technical field
The present invention relates to a kind of method of plastic bottle recycling.
Background technology
With the improvement of people ' s living standards, during increasing plastic bottle appears in the life of people, if do not reclaimed
If utilization, plastic pollution can be very serious, and is also the waste to resource.But the material of plastic bottle and label thereon is not
Together, plastic bottle is essentially PET, and it can be made the clothings such as sweater or sterilization herein is recycled as waste recovery,
Annual China will the substantial amounts of recovery of import plastic bottle, be processed and find a good sale in again outlet, many countries are all to moulding in the world
Material bottle is reclaimed comprehensively, and the rate of recovery rises year by year, but plastic bottle label is PP, it is impossible to which enough and plastic bottle reclaims processing simultaneously
Utilize.Therefore separating plastic bottle label turns into a urgent problem.
When the label on to plastic bottle is processed in the prior art, usually workman's hand-held hair dryer, by hair-dryer
Label is heated at alignment label, after after label heating, workman again removes label from plastic bottle, also occurs in that at present
Some are used for the device of tag processes, and a kind of brand peeling apparatus, brand peeling apparatus are disclosed in such as China Patent No. ZL201610154708.8
Including the body being made up of upper shell and lower house;Side is provided with the charging aperture of upward opening on body, and opposite side is provided with forward
The discharging opening of opening, positioned at bottom to the outlet such as bottle cap and silt debris of side opening, higher than the aft-opening label of discharging opening
, there is a fence between discharging opening and label outlet in outlet;The cavity internal upper part that upper shell and lower house are constituted is provided with stripping
Roller, bottom are provided with helical rotor, there is a screen cloth between stripping roller and helical rotor and constitute upper shell and lower house
Cavity be divided into two parts;The end face that stripping roller is located at discharging opening side is equipped with flabellum;Stripping roller be provided with it is multiple by
The stripping friction screw piece of helical pattern;The position corresponding with stripping friction screw piece is equipped with multiple friction silks on upper shell
Bar, the gap between these friction screw mandrels and stripping friction screw piece is adjustable;Stripping roller and helical rotor are by motor
By belt drive.This brand peeling apparatus solved the mode of artificial stripping in the past, can fully automatic operation, effectively raise work
Make efficiency.Using the structure of upper-lower casing, easy access is safeguarded, meanwhile, according to the size of plastic bottle, can also be rubbed by regulation
Wipe the position of screw mandrel to adjust stripping gap, so as to reach optimal stripping effect.The operation principle of this label stripping is:Using stripping
The label of the tooth plate friction plastic bottle on label machine rotor, while under the friction of label stripping machine staving screw mandrel, by plastic bottle label
Divest;It is characterized in:Friction tooth plate and screw mandrel wear time are long and replaceable;Size according to plastic bottle and whether be compression bottle
Or uncompressed bottle, the big I of friction gap of label stripping machine is adjusted, so as to reach optimal label stripping effect;Label is divested
Afterwards, it is capable of achieving being automatically separated for bottle and label.
But above-mentioned brand peeling apparatus also there is a problem of following when actually used:Due to the laminating degree between plastic bottle and label
Preferably, when being separated to label by the way of screw mandrel friction, the separation through being commonly present label is not thorough, the plastics after separation
On bottle can also residual fraction label problem.
The content of the invention
The invention is intended to provide a kind of label method for cleaning of plastic bottle, separated not thoroughly with solving label, separated
On plastic bottle afterwards can also residual fraction label problem.
A kind of label method for cleaning of the plastic bottle in this programme, the method signs device using a kind of stripping, including for inhaling
The Attraction block of attached plastics bottle body, offers air duct on Attraction block, air duct is connected with air extractor, in Attraction block
Lower section is provided with guide plate, and the spray orifice communicated with the opening of plastics bottle body is offered on guide plate, is provided with the upside of guide plate
The mounting blocks at plastic bottle body openings can be set in, mounting blocks are provided with the expanding block offseted with guide plate, the two of guide plate
End is respectively equipped with the first guide rail and the second guide rail, and the two ends of guide plate are slidably connected on the first guide rail and the second guide rail respectively,
The first spring is additionally provided between guide plate and the first guide rail, second spring is additionally provided between guide plate and the second guide rail, be oriented to
The both sides of plate further respectively have first connecting rod and second connecting rod, and first connecting rod is provided with some the first knives that can be offseted with label
Piece, second connecting rod is provided with some the second blades that can be offseted with label, and the other end being connected with guide plate in first connecting rod is also
Contact plate is provided with, the switch for also being electrically connected including variable-frequency motor and with variable-frequency motor, variable-frequency motor is connected with Attraction block, switch bag
Two metal still contacts and two metal rotor contacts are included, two metal rotor contacts are located on contact plate, and two metals are quiet
Piece contact is located on the first guide rail;
The method is comprised the following steps:
(1), start air extractor so that negative pressure is formed in air duct, now plastics bottle body is attracted on Attraction block;
(2), by the spray orifice on guide plate to hot-air is passed through in plastics bottle body, the temperature of hot-air is 80-90 DEG C, is entered
Heat transfer to the intrinsic hot-air of plastic bottle causes that the temperature of label is raised to label, on the other hand, hot-air
Heat will be passed to the expanding block at mounting blocks, and volume is become big by expanding block after absorbing heat, and expanding block volume will be pushed away after becoming greatly
Action-oriented plate overcomes the pressure of the first spring and second spring and moves down, while guide plate is moved down, first connecting rod
On the first blade and second connecting rod on the second blade label is cut;
(3), when guide plate is moved down, guide plate will simultaneously drive contact plate to move down, and it is same that contact plate is moved down
When, two metal still contacts on the two metal rotor contacts and the first guide rail on contact plate, switch closure, frequency conversion
Electric current is passed through in motor, variable-frequency motor drives plastics bottle body to rotate by Attraction block, the rotating speed of plastics bottle body rotation is 30-
40r/min。
Step(1)Middle air extractor work, plastics bottle body is attracted on Attraction block, and air extractor is stopped, modeling
Material bottle body is automatically separated from Attraction block.This mode causes that the installation and removal to plastics bottle body are very square
Just.
Step(2)In by the spray orifice on guide plate to the temperature of the hot-air being passed through in plastics bottle body in 80-90
DEG C, the temperature for causing label using the heat of hot-air is raised, and is now readily able to remove label from plastics bottle body, while
Guide plate is expanded against using expanding block absorption heat to move down, guide plate moves down drive the first blade and the second blade
Label is cleared up.
Step(3)Middle utilization variable-frequency motor drives the rotation of plastics bottle body so that the first blade and the second blade can be acted on
In the various location of label, it is ensured that to the cleaning effect of label everywhere.
The effect of this programme is:1st, this programme in plastics bottle body by being passed through hot-air so that the temperature of label
Raise, label separates easily from plastics bottle body, while the heat transfer of hot-air is at expanding block, expanding block expands and acts on
On guide plate so that guide plate drives the first blade and the second blade to move downward and clear up label, due to now
Label is easy to be separated from plastics bottle body, while several first blades and the second blade are clear to carry out repeatedly at label
Reason, therefore this programme can effectively ensure the cleaning effect to label, be not in residual label on the plastic bottle after separation
Problem.
2nd, the guide plate in this programme is during decline, moreover it is possible to drive the metal rotor contact and first on contact plate
Metal still contact on guide rail, and then cause to be passed through electric current in variable-frequency motor, variable-frequency motor is driven by Attraction block and moulded
Material bottle body rotation, blade is preferably processed the label on plastics bottle body.
Further, the first blade slides are connected on first connecting rod, and the second blade slides are connected on second connecting rod.It is different
Plastic bottle on label position it is also different, by sliding position and second blade of first blade on first connecting rod second
Position on connecting rod so that the first blade and the second blade are directed at label position all the time, thereby ensure that to the clear of label
Reason effect.
Further, the distance between two neighboring first blade is less than 1cm, and the distance between two neighboring second blade is small
In 1cm.The distance causes that the first blade and the second blade are sufficiently cut to label, it is to avoid label is insufficient due to cutting
Caused problem difficult for drop-off.
Further, guide plate is attached with first connecting rod and second connecting rod by way of welding.The mode of welding
Operating procedure is simple, and switching performance is reliable and stable.
Brief description of the drawings
Fig. 1 is the structural representation that device is signed in embodiment of the present invention stripping.
Specific embodiment
Below by specific embodiment, the present invention is further detailed explanation:
Reference in Figure of description includes:Plastics bottle body 1, guide plate 2, spray orifice 21, the first guide rail 3, the first spring
31st, the second guide rail 4, second spring 41, first connecting rod 5, the first blade 51, contact plate 52, second connecting rod 6, the second blade 61, change
Frequency motor 7, metal rotor contact 71, metal still contact 72, Attraction block 8, air extractor 9, mounting blocks 10, expanding block 11, mark
Sign 12.
A kind of label method for cleaning of plastic bottle, the method signs device using a kind of stripping, specifically includes following steps:
(1), start air extractor 9 so that negative pressure is formed in air duct, plastics bottle body 1 is attracted on Attraction block 8;
(2), by the way that, to hot-air is passed through in plastics bottle body 1, the temperature of hot-air is 80-90 at the spray orifice 21 on guide plate 2
DEG C, the heat transfer of the hot-air entered into plastics bottle body 1 causes that the temperature of label 12 is raised to label 12, now
It is readily able to remove label 12 from plastics bottle body 1, on the other hand, the heat of hot-air will be passed to swollen at mounting blocks 10
Volume is become big by expansion block 11, expanding block 11 after absorbing heat, and the volume of expanding block 11 will promote guide plate 2 to overcome the first bullet after becoming greatly
The pressure of spring 31 and second spring 41 is simultaneously moved down, while guide plate 2 is moved down, the first blade on first connecting rod 5
51 and second connecting rod 6 on the second blade 61 label 12 is cut;
(3), when guide plate 2 is moved down, guide plate 2 will simultaneously drive contact plate 52 to move down, and contact plate 52 is to moving down
While dynamic, 3 two metal still contacts 72 contact on the guide rail of two metal rotor contacts 71 and first on contact plate 52,
Switch closure, is passed through electric current in variable-frequency motor 7, variable-frequency motor 7 drives plastics bottle body 1 to rotate by Attraction block 8, plastic bottle sheet
The rotating speed of the rotation of body 1 is 30-40r/min;
(4), stop being passed through hot-air at spray orifice 21, under the active force of the first spring 31 and second spring 41,2 liang of guide plate
End moves up reset along the first guide rail 3 and the second guide rail 4 respectively, and metal rotor contact 71 and metal still contact 72 separate,
Switch off, stop being passed through electric current in variable-frequency motor 7, complete the cleaning to the label 12 on plastics bottle body 1.
The stripping label device used in the above method as shown in Figure 1, including opening down placement plastics bottle body 1,
The lower section of plastics bottle body 1 is provided with guide plate 2, and the middle part of guide plate 2 offers spray orifice 21, spray orifice 21 and plastics bottle body 1
Opening communicates, and the left side of guide plate 2 is provided with the first guide rail 3, and the right side of guide plate 2 is provided with the second guide rail 4, the left and right of guide plate 2
Two ends are slidably connected on the first guide rail 3 and the second guide rail 4 respectively, and first raised, the second guide rail is additionally provided with the first guide rail 3
4 are provided with the second projection, and the first spring 31 is provided between the projection of guide plate 2 and first, are set between the projection of guide plate 2 and second
There is second spring 41.The mounting blocks 10 that can be set at the opening of plastics bottle body 1, mounting blocks 10 are provided with the upside of guide plate 2
The expanding block 11 offseted with guide plate is provided with, the volume after heat is absorbed of expanding block 11 will increase.
First connecting rod 5 and second connecting rod 6 are fixedly connected with the upside of guide plate 2, first connecting rod 5 is located at plastics bottle body
1 left side, the upside of first connecting rod 5 is connected with contact plate 52, and second connecting rod 6 is located at the right side of plastics bottle body 1, connects first
Bar 5 is provided with several the first blades 51, the quantity of the first blade 51 18 in the present embodiment, two neighboring first blade 51
Distance is less than 1cm, and the first blade 51 is slidably connected on first connecting rod 5, when processing different plastics bottle bodies 1,
Slidably position of first blade 51 on first connecting rod 5, also is provided with 18 second blades 61 on second connecting rod 6, two neighboring
The distance of the second blade 61 is less than 1cm, and during guide plate 2 is moved down, the first blade 51 and the second blade 61 are to label 12
Cleaning repeatedly is carried out, the cleaning effect to label 12 is further improved.
Attraction block 8 is provided with the upside of plastics bottle body 1, air duct is offered on Attraction block 8, connected at air duct
Air extractor 9 is connected to, when air extractor 9 works, negative pressure can be formed in air duct, so that plastics bottle body 1 is firmly
It is attracted on Attraction block 8.Variable-frequency motor 7 is also associated with the upside of Attraction block 8, variable-frequency motor 7 is electrically connected with switch, is switched
Including two metal still contacts 72 and two metal rotor contacts 71, two metal rotor contacts 71 are located on contact plate 52,
Two metal still contacts 72 are located on the first guide rail 3.
Above-described is only embodiments of the invention, and the general knowledge such as known concrete structure and characteristic is not made herein in scheme
Excessive description.It should be pointed out that for a person skilled in the art, on the premise of structure of the present invention is not departed from, can be with
Some deformations and improvement are made, these should also be considered as protection scope of the present invention, these are implemented all without the influence present invention
Effect and practical applicability.This application claims protection domain should be defined by the content of its claim, in specification
Specific embodiment etc. records the content that can be used for explaining claim.