JP3315102B2 - Plastic material recovery method and resin coating film separation device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for recovering a plastic material and an apparatus for separating a resin film.

More specifically, this plastic molded product is crushed especially for various plastic molded products whose surfaces are covered with a resin coating mainly composed of a synthetic and / or protective synthetic resin material. After being processed into small pieces in the form of coarse particles, the resin coating film is separated and removed from each of the small pieces to be processed, and collected as a plasticized material, or as required. In addition, the plastic material thus obtained is sized and collected as a sized plastic material within a predetermined particle size range so that the collected plastic material can be reused. The present invention relates to a method for collecting a plastic material and an apparatus for separating a resin coating film.

[0003]

2. Description of the Related Art Generally, plastic molded articles formed by plastic molding materials such as various synthetic resins are used in a wide variety and in a large amount for a wide range of uses with diversification of life. However, at present, the following various problems have been raised regarding treatment after use of this type of plastic molded article.

[0004] Many of the plastic molding materials constituting the plastic molding have excellent characteristics such as excellent water resistance and weather resistance and are hardly perishable. On the other hand, for example, an incinerator for disposal is required. It is well known that incineration produces a large amount of harmful gas and smoke, which is undesirable in the social environment. In addition, the synthetic resin material melted during incineration adheres to the furnace and the furnace itself is damaged. It has the disadvantage that it may be damaged, and even if it is buried in the ground to avoid this, it remains without rot for a long period of time. It is supposed to be.

On the other hand, with respect to resin materials as this kind of plastic molding material, there is a tendency for resources to be depleted year by year, and it has been demanded and recognized that the used plastic molded product should be reused without being discarded. , For this reuse,
For plastic molded products, attempts have been made to display the type of plastic molding material used and to facilitate collection.

[0006]

Here, the plastic molded product to be collected for reuse is usually polished, matted, and de-glazed on the surface of the plastic molded product. It is often coated with a resin coating for cosmetic purposes such as coloring, or for protection, which further enhances abrasion resistance and weather resistance. One example is application to various vehicles. 1. The thickness of the bumper member formed by polypropylene
Usually, a polyurethane coating having a thickness of about 25 μm is applied on the surface of a base member of about 5 mm.

Further, as for the resin coating film formed on the surface of the plastic molded product, a synthetic resin paint of a different kind and characteristic is used for the plastic molding material applied to the molding of the plastic molded product. It is also common to use a synthetic resin paint of a different color as described above, and thus to mutually connect members having different types, characteristics, and different colors. Reusing in a mixed state will not only result in a significant loss of the properties of the molded article obtained by the recycling, but also result in the inability to obtain the desired color.

Therefore, from the above viewpoint, conventionally,
With respect to the plastic molded product to be recovered, it is usually practiced to separate the plastic molded product into plastics of the same type and having the same properties, and then collect and reuse the plastic.

However, the resin coating film formed on the surface of the plastic molded product is relatively thin and has a strong coating force, so that it cannot be easily peeled off. It is easy to cause troubles and it is difficult to fit. For example, even if it is attempted to peel and separate it using a crushing means such as a ball mill, the resin coating film to be peeled is melted due to frictional heat generated at the time of crushing, and rather peeled There is a drawback that it becomes impossible, and in order to melt-separate materials of different types with the corresponding solvent in this way, the processing equipment itself becomes too large. It is not preferable in terms of economics,
In addition, there are various problems that there are many difficulties in treating the used solvent.

The present invention has been made mainly to solve such a conventional problem, and an object of the present invention is to produce a plastic molded product to be processed by relatively simple and easy means. , After separating and removing the resin coating film formed on the surface, collect it as a plastic material, and if necessary,
An object of the present invention is to provide a method for collecting such a plastic material and an apparatus for separating a resin coating film, which can be recovered as a plastic material sized in a predetermined particle size range.

[0011]

In order to achieve the above object, a method for collecting a plastic material according to the present invention comprises the steps of: crushing a plastic molded article to be treated into a plurality of small pieces to be treated; A plastic material is formed by applying a compressive impact force based on micro-vibration to each of the small pieces to be crushed, and removing the resin coating film separated from each of the small pieces by the crushing action. Or crushed treated pieces from which the resin coating has been removed and polished by applying an impact milling force to collect them as a plastic material with a smooth surface, or reprocess each treated piece. After the pulverization, the re-pulverized particle size is adjusted to be equal to or smaller than a predetermined particle size range, and each of the crushed pieces is polished by applying an impact milling force, and is polished to a predetermined particle size range. Plastic material with sizing material inside In addition, the resin coating film separating device applies micro-vibration to the opposing compression impact surfaces with a predetermined gap therebetween, and applies a small vibration between these compression impact surfaces. Each of the supplied small pieces to be processed can be crushed by a compressive impact force based on the minute vibration.

That is, the first invention of the present invention is directed to a plastic molded article having a resin coating formed on its surface, and separating and removing the resin coating from the plastic molded article to obtain a plastic material. A method of recovering, wherein the plastic molded article is crushed into a plurality of pieces to be treated, and a compressive impact force based on micro-vibration is applied to each crushed individual piece to be treated. And a crushing step.

[0013] A second invention of the present invention is directed to a plastic molded article having a resin coating formed on a surface thereof, wherein the resin coating is separated and removed from the plastic molded article to obtain a plasticized material. A method of collecting,
A step of crushing the plastic molded article into a plurality of small pieces to be treated, and crushing the individual small pieces to be treated by applying a compressive impact force based on micro-vibration,
And a step of removing the resin coating film peeled off by crushing.

Further, a third invention of the present invention is directed to a plastic molded article having a resin coating formed on its surface, wherein the resin coating is separated and removed from the plastic molded article to obtain a plastic material. A method of collecting,
A step of crushing the plastic molded article into a plurality of small pieces to be treated, and crushing the individual small pieces to be treated by applying a compressive impact force based on micro-vibration,
And a step of removing the resin coating peeled off by crushing,
A process of polishing and sizing each of the small pieces to be treated from which the resin coating has been removed.

Further, a fourth invention of the present invention is directed to a plastic molded product having a resin coating film formed on a surface thereof. Crushing the plastic molded product into a plurality of small pieces to be treated, and applying a compressive impact force based on micro-vibration to each crushed individual small piece to be treated. And crushing by applying a compressive impact force based on micro-vibration, removing the resin coating peeled off by crushing, and re-crushing each of the crushed small pieces to be processed. Removing the resin coating film separated from one side of each pulverization by the re-pulverization.

A fifth aspect of the present invention is directed to a plastic molded article having a resin coating formed on a surface thereof, wherein the resin coating is separated and removed from the plastic molded article to obtain a plasticized material. A method of collecting,
Crushing the plastic molded article into a plurality of small pieces to be treated; and continuously applying a compressive impact force based on micro-vibration to each of the small pieces to be crushed, and crushing the pieces. Alternatively, while applying a compression impact force based on micro-vibration and crushing, removing the resin coating peeled off by crushing, re-crushing each of the crushed small pieces to be treated, and And grinding the individual crushed pieces by applying an impact milling force, and sizing the crushed pieces.

A sixth aspect of the present invention is directed to a plastic molded article having a resin coating formed on its surface, and separating and removing the resin coating from the plastic molded article to obtain a plasticized material. A method of collecting,
A step of crushing the plastic molded article into a plurality of pieces to be treated, and for each crushed individual piece to be treated,
A step of applying a compressive impact force based on micro-vibration and crushing, or a step of applying compressive impact force based on micro-vibration and crushing and removing the resin coating film peeled off by crushing; Re-grinding each of the small pieces to be treated, polishing and sizing the individual crushed pieces by applying an impact milling force to the crushed individual crushed pieces, A method for collecting a plastic material, comprising at least a step of separating a product and a resin coating separated by the sizing, and removing the resin coating.

The present invention provides the first, second, third,. In the method for recovering each plastic material according to the fourth, fifth, and sixth inventions, the crushing of each of the small pieces to be processed may be caused by an impact based on directional micro-vibration between the compression impact surfaces facing each other. It is characterized by being applied with force.

Further, the present invention provides the method for recovering each plastic material according to the first, second, third, fourth, fifth and sixth aspects of the present invention, wherein the step of crushing each of the small pieces to be processed includes It is characterized by removing as much as possible the resin coating film separated from each small surface to be treated by crushing action.

Further, the present invention provides the fourth, fifth, and sixth aspects.
In the method of recovering each plastic material according to the invention of the above,
In the step of re-grinding each of the small pieces to be treated, the particle size of the re-ground particles is adjusted to be equal to or smaller than a predetermined particle size range.

Further, in the present invention, in the method for recovering each plastic material according to the first, second, third, fourth, fifth, and sixth inventions, the step of crushing each of the small pieces to be processed may be performed as follows.
It is characterized by being repeated continuously a plurality of times.

Further, the present invention provides the fourth, fifth, and sixth aspects.
In the method of recovering each plastic material according to the invention of the above,
The re-pulverizing step of each of the small pieces to be processed is continuously repeated a plurality of times.

Also, in the present invention, in the method for recovering each plastic material according to the first, second, third, fourth, fifth and sixth inventions, the step of crushing each of the small pieces to be treated may comprise:
It is characterized by being repeated a plurality of times with another step interposed.

Further, in the present invention, in the method for recovering each plastic material according to the fourth, fifth, and sixth inventions, the re-pulverizing step of each of the small pieces to be treated may be performed by interposing another step. It is characterized by repeating over and over.

Next, a seventh invention of the present invention is directed to a plastic molded product having a resin coating film formed on a surface thereof, wherein the resin coating film is separated and removed from the plastic molded product to obtain a plasticized material. An apparatus for separating a resin coating film used in a method of recovering, wherein a pair of compression impact members having a compression impact surface facing each other at a predetermined interval are provided, and above each compression impact member. The injection opening for sequentially supplying the small pieces to be processed obtained by crushing the plastic molded article is formed so that at least one of the compression impact members can be slightly vibrated with respect to the other. It is an apparatus for separating a resin coating film.

According to the present invention, in the resin coating film separating apparatus according to the seventh aspect of the present invention, at least one of the compression impact members has an independent projection group protruding from at least one of the compression impact surfaces. It is characterized by the following.

Next, an eighth invention of the present invention is directed to a plastic molded product having a resin coating film formed on the surface thereof. An apparatus for separating a resin coating film used in a method of recovering a resin film, wherein an inner compression impact member having an inner compression impact surface formed thereon and an outer compression impact surface opposed to the inner compression impact surface with a predetermined gap are formed. An outer compression impact member, and an input opening for supplying a small piece obtained by crushing the plastic molded product is formed above the inner and outer compression impact surfaces; For at least one of the compression impact members of
An apparatus for separating a resin coating film, wherein the separation apparatus is configured to be capable of giving a micro vibration.

According to the present invention, in the resin coating film separating apparatus according to the eighth aspect of the present invention, each of the inner and outer compression impact surfaces is formed in a conical or frustoconical combination. , And are configured so as to face each other in such a manner that they are parallel or open upward.

According to the present invention, in the resin coating film separating apparatus according to the eighth aspect of the present invention, the inner and outer compression impact surfaces are formed in a mutual combination of respective arc surface shapes, and these are formed together. It is characterized by being configured to face each other.

According to the present invention, in the resin coating film separating apparatus according to the eighth aspect, each of the inner and outer compression impact surfaces is formed in a conical shape or a truncated conical shape and an arc surface shape. And these are configured to face each other.

According to the present invention, in the resin coating film separating apparatus according to the eighth aspect of the present invention, each of the small pieces to be processed is placed on the supply surface of each small piece by the inside compression impact member. A plurality of guide projections for guiding and supplying to the side are provided so as to correspond to the direction of the minute vibration.

[0032]

Therefore, in each of the first to seventh inventions of the present invention, after the plastic molded article is crushed into a plurality of small pieces to be treated, each of the small pieces to be treated is subjected to fine vibration. The compressed impact force is applied to crush the resin, and the crushing action removes and separates and removes the resin coating from each of the small pieces to be treated, so each small piece to be treated can be collected as a plastic material. Also, by applying an impact grinding force to the material-processed small pieces and polishing them, a relatively round plastic material can be recovered. After re-grinding and adjusting the re-pulverized particle size to be equal to or less than a predetermined particle size range, each of these crushed pieces is polished by applying an impact milling force, and polished within a predetermined particle size range. Because it is a sized product, Thus the sized product is granulated into a predetermined particle size range is to be recovered as a plastic material.

In the eighth aspect of the present invention, a plurality of small pieces to be treated obtained by crushing a plastic molded article to be treated are subjected to micro-vibration,
In the same manner as described above, the resin coating film can be peeled and separated and removed from each of the small pieces to be processed by the compressive impact force based on the minute vibration.

[0034]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, each of the embodiments of the method for recovering a plastic material and the apparatus for separating a resin coating film according to the present invention will be described.
This will be described in detail with reference to FIGS.

Prior to describing the details of the embodiment of the present invention, since the technology to which the present invention is based uses a method for collecting a plastic material and a device for separating a resin coating film, the main points are as follows. Is clarified as follows.

That is, in the method and apparatus according to the present invention, the objects to be processed are all plastic materials (plastic molded products). First, the technique in the former invention method, in this case, Is a technical idea for peeling and removing a resin coating film from a processed small piece after crushing the plastic molded article having a resin coating film on its surface into small pieces to be processed. Another embodiment of the technical idea for sizing the treated pieces from which the resin coating film has been peeled and removed to within a predetermined particle size range, and basic peeling and removing means by the latter invention apparatus applied to the former invention method An embodiment of the present invention and specific embodiments of the peeling and removing means using the latter invention device will be described respectively.

In the present invention, the term "plastic molded article" is a general term for all plastic products obtained by molding a plastic molding material into a required shape using a mold, a die, or the like. The molding method may be any method such as molding and forming. For example, it includes all plastic products such as a plastic film and a plastic sheet together with a bumper of an automobile. This includes plastic molded products, plastic fragments as crushed products, plastic powder as crushed products, and all such plastic molded products and deformed products. Next, “crushing” refers to plastic molded products or plus Click molded article shape suitable like from the treated powder moldings including the size of the fragments to be processed, or breakage in order to obtain an object to be processed, a cutout, "separation"
Is the separation and removal of the resin coating from the surface of the small piece to be treated, and “sizing” is the small piece to be treated with the resin coating removed, or
Sizing of the workpiece to a size within a predetermined particle size range suitable for reuse by polishing, grinding, etc., and polishing of the workpiece to be treated after removing the resin coating film or the workpiece itself, The chamfering and sizing of the corners by grinding etc. means respectively, and the “powder material” is a broadly defined powder material that is to be recovered from powder molded products such as ceramic materials including plastic materials Or, in a broad sense, powder materials such as relatively hard and easily crushable powder pieces and powder lumps, and in a broad sense and relatively soft and easily granulated powder pieces and powder lumps, "Pulverization" refers to the pulverization of an object to be treated such as a piece of powder or a lump that has been broken into a size suitable for processing. It means granulation for forming into a size within a predetermined particle size range suitable for use.

FIG. 1 shows one example of a plastic molded article to be treated in the present invention and a small piece to be treated obtained by crushing the plastic molded article. In this case, for example,
BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective explanatory view conceptually and schematically showing an example of a plastic molded product such as a bumper member applied to various vehicles and a small piece to be processed obtained by crushing the plastic molded product.

In FIG. 1, a plastic molded article 11 to be treated is a base member (hereinafter referred to mainly as a recovered plastic material) molded from a first synthetic resin (for example, polypropylene for a vehicle bumper member). 13), the second synthetic resin (similarly,
In the case of a bumper member of a vehicle, a resin coating (hereinafter, also referred to as a resin coating to be mainly removed) 14 using a resin coating mainly composed of polyurethane is applied and formed. 11 is a small piece according to a desired size, that is, in this case, each piece to be processed 1
2 crushed.

In the present invention, basically,
Each of the small pieces 12 to be processed is processed as described below,
By completely separating and removing the resin coating film 14 from the collected plastic material 13 constituting the small piece 12 to be treated, the collected plastic material 13 is converted into a materialized plastic material. The collected plastic material 13 is collected as it is, or as described later, the collected plastic material 13 is sized in a form suitable for reuse, or is sized in a predetermined particle size range. It is collected as a collected and sized plastic material (hereinafter, also mainly referred to as a collected and sized plastic material) 15.

As the plastic molded article 11 to be processed, besides the bumper member of the vehicle, for example, any natural plastic material that can be collected and can be collected and reused, and synthetic plastic It is made of any material and is formed by any molding means, and at least a part of the surface is coated for cosmetic purposes such as polishing, matting and coloring, or abrasion resistance and weather resistance A protective coating for the purpose of, for example, in this case, any plastic molded article on which any applicable film to be removed such as a coating that can be peeled off by applying a compressive impact force is formed. It may be.

In addition, as described later, in this case, for example, a cut piece obtained by crushing the plastic molded product 11 to a required size using a cutter mill 201 or the like is used as the small piece to be processed 12. For example, in the case of the bumper member, as described above, a thickness of about 2.5 μm coated with a polyurethane coating having a thickness of about 25 μm is used.
A polypropylene base member of about mm is prepared by cutting or crushing in a broad sense a side of about 20 × 20 mm.

Next, means for processing the plastic molded article 11 to collect the collected plastic material 13 or the collected and sized plastic material 15 will be described.

Here, FIG. 2 is a systematic description of the processing steps showing, in principle and schematically, an outline of the case where the first method of the first embodiment in the method for separating and collecting plastic molded articles according to the present invention is applied. FIG. 3 is a view showing the method of the first embodiment, in which a small piece 12 to be treated obtained by crushing the plastic molded article 11 is spread by applying a compressive impact force to the spread action. Accordingly, a schematic configuration diagram schematically showing an outline of a first compression impact force applying apparatus as a first embodiment apparatus for removing a resin coating film 14 applied on the surface thereof to obtain a recovered plastic material 13. It is.

When the basic method of the first embodiment is applied, as described above, the cutter mill 201 is used.
In order to apply a required compressive impact force to the small piece 12 to be processed obtained by crushing the plastic molded article 11, the first embodiment shown in FIG.
A first compression impact force applying device 20 is used, which applies a compression impact force to the small piece to be processed 12 to peel off and remove the resin coating film 14 from the collected plastic material 13.

That is, in the device configuration of FIG. 3, the first compression impact applying device 20 has the compression impact surfaces 22a and 22b opposed to each other with a predetermined gap g in parallel in this case. Each of these compression impact surfaces 22a, 22
b, a pair of compression impact members 21a and 21b having a compression impact portion 23 is provided between them, and each of the crushed small pieces 12 above the compression impact members 21a and 21b is disposed above the compression impact members 21a and 21b. Input opening 2 for supplying sequentially
4 and at least one of the compression impact members 21a and 21b,
1b with respect to the other, that is, the compression impact member 21a,
As shown by a solid arrow by any known vibration generating device (not shown), the micro-vibration can be continuously performed,
Alternatively, both of them can be continuously vibrated as indicated by solid and dotted arrows.

Accordingly, in the basic method of the first embodiment, the compression impact members 21a and 21b of the first compression impact force applying device 20 and the compression impact surfaces 22a and 22b are separated from each other. Between each of the small pieces 12 to be processed, and the individual small pieces 12 to be processed
, The compression impact force based on the micro-vibration is continuously applied to each of the small pieces 12 to be processed by the compression impact portion 23 between the compression impact surfaces 22a and 22b. In response to a required crushing action and a spreading action, a change in internal stress applied to the recovered plastic material 13 and the resin coating film 14 constituting the small piece to be processed 12 due to the crushing and the spreading action, for example, Resin coating applied from the recovered plastic material 13 due to internal stress difference between the recovered plastic material 13 that is relatively easily crushed and spread and the resin coating 14 that is relatively crushed and hardly spread. 14 are easily separated and separated from each other, and both of them are respectively discharged downward. In this way, the resin coating film 14 is separated from the recovered plastic material 13. Is removed, a this ゝ is as it can be collected on the intended as the recovery plastic material 13 as the material of plastic material.

In this case, each of the compression impact members 2
The at least one of the compression impact surfaces 22a and 22b of the first and second compression impact surfaces 1a and 21b is provided with a group of individually independent projections 25 protruding therefrom.
The effect of peeling the resin coating film 14 from 3 becomes more remarkable.

In the method of the first embodiment,
The peeling action of the resin coating film 14 from the collected plastic material 13 constituting each of the small pieces 12 to be processed is determined by the addition of a compressive impact force between the compressive impact surfaces 22a and 22b in the first compressive impact force applying device 20. However, it is not always necessary to use only the first compressive impact force applying device 20, and a compressive impact force based on micro-vibration is applied to each of the small pieces 12 to be processed. Alternatively, any other device structure may be used as long as it is a peeling means that can be continuously added to be crushed and spread.

Next, FIGS. 4 and 5 show the second and third specific examples of the method for recovering plastic materials according to the present invention.
FIGS. 3A and 3B are systematic explanatory diagrams of processing steps, respectively, schematically and in principle schematically showing a case where the method of each embodiment is applied.

FIGS. 6 and 7, FIGS. 8 and 9, and FIGS. 10 and 11 show processing methods obtained by crushing the plastic molded product 11 in the second and third embodiments. By continuously applying a directional compression impact force to the small pieces 12, the small pieces 12 to be processed, and eventually,
Second embodiment as each embodiment apparatus for peeling off the resin coating film 14 applied to the surface of the collected plastic material 13 and the second embodiment apparatus used for pulverizing or granulating the article 17 to be processed, which will be described later. , The third section and the fourth section schematically show the configuration of the compressive impact force applying device. A longitudinal section and a cross section of a main portion of a part A are partially enlarged, respectively, and a B section is partially enlarged. Longitudinal section and plan view of inner compression impact member,
And a vertical cross-sectional view and a main part horizontal cross-sectional view.

In applying the above-described concrete second and third embodiment methods, a directionality, that is, a rotation in this case, is applied to the small piece 12 to be processed obtained by crushing the plastic molded article 11. In order to separate and remove the resin coating film 14 from the recovered plastic material 13 by continuously applying a directional compression impact force in a circular direction or a rotating circular direction and slightly diagonally downward. The second, third, and fourth compression impact force applying devices 30 (corresponding to FIGS. 6 and 7), 50 (corresponding to FIGS. 8 and 9), and 80 (corresponding to FIGS.
0, corresponding to FIG. 11).

That is, in the device configuration of FIGS.
The second compressive impact force applying device 30 includes a substantially cylindrical lower device main body 31 fixedly installed on a base 32 and an upper portion of the lower device main body 31 via an elastic member 40 for vibration isolation. And a cylindrical upper vibrating main body 41 concentrically connected to the upper vibrating main body 41, as described later. Is set to an elastic coefficient capable of buffering and absorbing.

On the lower device main body 31 side, the upper surface 33b is set at a predetermined opening angle, and in this case, the opening angle for introducing and supplying the small piece 12 to be processed is set to a vertical cross section. An inner compression impact member 33 having an umbrella shape and an inner compression impact surface 33a formed on the outer peripheral surface and having an outwardly conical shape or an outwardly truncated conical shape at a required angle is provided. As for 33, the upper end of a support column 34 planted and fixed to the center of the lower device main body 31 so as to protrude upward, and furthermore, the support column approaching the center inside the upper vibrating main body 41 side. It is firmly fixed to the upper end of the body 34. Reference numeral 31a denotes a take-out hopper provided at the lower portion of the inner periphery of the lower device main body 31.

On the upper vibrating main body 41 side, the bracket 42 is positioned at a predetermined angular interval on the outer peripheral surface.
a, a pair of vibration motors 42, 42 in this case, for example, a vibration motor with a so-called eccentric weight, is fixed with good balance, and the inner peripheral surface is , The inner compression impact surface 33
a corresponding to or almost parallel to a, or slightly opposing the form of expanding upward,
Similarly, the outer compression impact member 43 having the outer compression impact surface 43a set in an inward conical shape or an inward truncated cone shape is firmly fixed, and the inner and outer compression impact surfaces 33a, 43a, the small piece 1 to be treated
2, the gap is set to the extent that a compressive impact force can be added as expected. In this case, the adjustment of the set gap is not particularly shown, but the inner and outer gaps are not shown. By adjusting one of the compression impact members 33 and 43 up and down with respect to the other, each compression impact surface 33 is adjusted.
This is easily possible because a and 43a are opposed to each other in a conical shape or a truncated conical shape. Reference numeral 41
a and 41b are upper openings of the upper vibrating main body 41,
A charging hopper and an intermediate hopper provided at the lower part of the inner periphery.

Therefore, in the specific second embodiment method, a pair of a pair of vibration motors 4 provided on the upper vibrating main body 41 of the second compressive impact force applying device 30 is provided.
By rotating the upper and lower vibrating bodies 41 and 42, the outer compression impact member 43 on the upper vibrating main body 41 side, and thus on the outer compression impact surface 43a side and the inner compression impact surface 33a, rotate in the direction of rotation. More preferably, the micro-vibration having directionality in the direction of the rotating circle which is slightly obliquely downward continuously occurs.

Then, by supplying the individual small pieces 12 to be processed from the upper opening of the inner compression impact member 33 to the upper surface 33b, these small pieces 12 are compressed by the inner and outer compression members. The compression shocks are sequentially introduced between the impact surfaces 33a and 43a, and compressed or impacted between the compression impact surfaces 33a and 43a based on the directional micro-vibration while being individually resistively rolled or slid. The force is continuously applied. In this case, the crushing and spreading action including the directional sliding action and the crushing and spreading action including the directional sliding action are performed. Accordingly, the above-described internal stress is applied to the recovered plastic material 13 and the resin coating film 14 constituting the small piece 12 to be processed more efficiently and effectively than in the case of the first compression impact force applying device 20. Fluctuations As a result, the resin coating film 14 is easily peeled off from the recovered plastic material 13 and separated from each other, and both are discharged downward. Thus, the recovered plastic material 13 is expected as described above. The resin film 14 is separated from the resin film 13.

8 and 9, the third compressive impact applying device 50 is fixedly mounted on the base 52 similarly to the case of the second compressive impact applying device 30. A lower device main body 51 having a substantially cylindrical shape, and a cylindrical upper vibrating main body 71 concentrically connected to an upper portion of the lower device main body 51 via an elastic member 70 for vibration isolation. As described later, the elastic member 70 is set to have an elastic coefficient enough to absorb and absorb the micro vibration continuously applied to the upper vibrating main body 71.

On the lower device body 51 side, the upper surface 53b is set to a predetermined opening angle, and in this case, the opening angle for introducing and supplying the small piece 12 to be processed is set to a vertical sectional umbrella. Compression impact member 53 which is formed in the shape of an outer periphery and has an inner compression impact surface 53a set on the outer peripheral surface portion in an outwardly conical shape or an outwardly truncated cone shape at a required angle.
Separately, on the upper and lower portions of the center of the lower device main body 51, an upper shaft support 54a protruding close to the center inside the upper vibrating main body 71 side, and a cylindrical shell on the upper shaft support 54a. One of the lower shaft supports 54b connected at 55c
A set is provided, and a rotating vertical shaft 55 is pivotally supported in the upper and lower shaft shell supports 54 via bearings 56, 56, and the inner compression impact member 53 is fixed to the upper end of the rotating vertical shaft 55. Let me do it.

Then, from one side of the lower device main body 51, the shaft cylinder 58 is fixed through the cylinder shell 55c, and the rotating horizontal shaft 5 is inserted into the shaft cylinder 58 via bearings 58a, 58a.
7 is pivotally supported, and the lower part of the rotary vertical shaft 55 and one end of the rotary horizontal shaft 57 are connected to a pair of bevel gears 59a, 59.
b, the geared motor 60 is coupled via a coupling 61 to the other end of the rotating horizontal shaft 57 taken out of the main body, and the rotating horizontal shaft 57 is driven by the rotation of the geared motor 60. 57, the set of bevel gears 59a, 59b, and the rotating vertical shaft 55 allow the inner compression impact member 53 to rotate in a selected direction at a reduced speed at a relatively low speed. Reference numeral 51a denotes a take-out hopper provided at the lower portion of the inner periphery of the lower device main body 51. Reference numeral 53c denotes each of the small pieces 12 to be processed protruding on the upper surface 53b of the inner compression impact member 53 in the rotational direction. Are a plurality of guide projections for introducing guides.

Further, on the upper vibrating main body 71 side, vibration generating means is provided at predetermined angular intervals on the outer peripheral surface portion via a bracket 72a. 72, 72 are fixed with good balance, and the inner peripheral surface is parallel or almost parallel to the inner compression impact surface 53a of the inner compression impact member 53, or An outer compression impact member 73 having an outer compression impact surface 73a set in an inwardly conical shape or an inwardly truncated cone shape facing upward in a manner of expanding upward is firmly fixed. A gap is set between the inner and outer compression impact surfaces 53a and 73a to such an extent that the small piece 12 to be treated is introduced and a compression impact force can be applied as expected. Adjustments are the same as above. To, by this case, for particularly although not shown, up and down adjustment inside the outer one of each compression impact members 53, 73 relative to the other,
This is easily possible because the compression impact surfaces 53a and 73a face each other in a conical shape or a truncated cone shape. Reference numerals 71a and 71b denote an upper opening of the upper vibrating main body 71, a charging hopper provided at a lower portion of the inner periphery, and an intermediate hopper.

Therefore, also in this case, the specific second
In the method of the third embodiment, the pair of vibration motors 72 provided on the upper vibrating main body 71 of the third compressive impact applying device 50 are rotationally driven to thereby rotate the upper vibrating body. The outer compression impact member 73 on the main body 71 side, and thus on the outer compression impact surface 73a side, and between the inner compression impact surface 53a and the rotational compression direction, more preferably, in a rotational circular direction that is slightly obliquely downward. The directional micro-vibration is continuously generated, and at the same time, by rotating the geared motor 60 outside the main body, the rotating vertical shaft 57 and the rotating vertical shaft via the pair of bevel gears 59a and 59b, respectively. 55, and consequently, the inner compression impact surface 53a of the inner compression impact member 53 is rotated at a relatively low speed in the forward or reverse direction with respect to the rotational circular direction.

In this case, similarly, by supplying the individual small pieces 12 to be processed from the upper opening of the inner compression impact member 53 onto the upper surface 53b,
Each of these small pieces to be processed 12 has a plurality of guide projections 53c.
In addition to the introduction guide action of the first and second compression impact surfaces 53a and 73a, they are successively introduced between the inner and outer compression impact surfaces 53a and 73a, and each of the compression impact surfaces 53a and 73a is individually resistively rolled or slid. While being moved, the compressive impact force based on the directional micro-vibration and the forward or reverse rotational force are continuously added in a relative relationship to each other. As in the case of (1), the crushing and spreading action including the sliding action corresponding to the directionality is received, and the crushing and spreading action including the sliding action corresponding to the directionality causes the first compressive impact force applying device 20 to operate. More efficiently and effectively than the above case, the above-mentioned fluctuation of the internal stress is applied to the collected plastic material 13 and the resin coating film 14 constituting the small piece to be treated 12, and the collected plastic material 13 The resin coating 14 is easily peeled off, Are separated from each other and both are discharged downward. In this way, the resin coating film 14 is separated from the recovered plastic material 13 as expected. In this case, the outer compression impact surface 73a If the rotation of the inner compression impact surface 53a in accordance with the microvibration having directionality in the direction of the rotating circle, or slightly downward in the direction of the rotating circle, is forward with respect to the direction of the rotating circle, each guide projection If the introduction and pull-in of each of the small pieces to be processed 12 between the compression impact surfaces 53a and 73a together with the compression impact surfaces 53a and 73a further increase and are in the opposite direction, each of the small pieces to be processed between the compression impact surfaces 53a and 73a The rolling or sliding action of No. 12 is further improved.

In the constructions of the second and third compression impact applying devices 30, 50, the opposing states of the inner and outer compression impact surfaces 33a and 53a, 43a and 73a are expanded upward. When set in the mode, the introduction of each of the small pieces to be processed 12 between the inner and outer compression impact surfaces 33a and 53a and between the inner and outer compression impact surfaces 33a and 73a is further smoothed, and the resistive rolling thereof is performed. , Or crushing due to sliding and clogging at the time of spreading action can be effectively avoided. Further, each of the inner and outer compression impact surfaces 33a
And 53a, 43a and 73a can be formed in any combination such as a mutual combination of arc surfaces, a conical shape, or a combination of a truncated cone shape and an arc surface shape. Or almost the same effect,
An effect can be obtained, and when a compressive impact force is applied to the small piece 12 to be processed, the compression impact surfaces 33a and 53a on the inner side and the outer side are located between the compression impact surfaces 53a and 43a and 73a.
It is one effective means to flow a liquid for promoting the peeling of the resin coating film 14, for example, water.

Next, a more specific fourth embodiment capable of automatically generating micro-vibration between the inner and outer compression impact surfaces as described above without using any additional element. As shown in FIGS. 10 and 11, an outer cylinder 82 fixed to a base plate 81 as an apparatus main body,
And an inner cylinder 83 and a lower bearing housing 84 held in the inner cylinder 83 by a flange 84c.

Separately, a cone-shaped inner compression impact member 85 having an outer surface formed with an outwardly conical inwardly inclined inner compression impact surface 85a, and the inner compression impact member 85 is fitted to the outer peripheral surface and connected downward. An inner holding body 86 having an extended shaft portion 86a, an outer compression impact surface 87a inclined inwardly conically below the inner surface, and an outer introduction surface 8 expanded upward above the inner surface.
7b, the outer compression impact member 87 having a cone shape, and the outer compression impact member 87 are fitted to the inner peripheral surface of the outer compression impact member 87 by a restraining ring 89 and incorporated into the outer side of the inner compression impact member 85. An outer holding member 88 which forms a compression impact portion of each of the small pieces to be processed 12 with the surface 85a.
Is screwed into the upper opening of the outer cylinder 82 so as to be able to advance and retreat,
By operating the external handle 90, the screwing depth and, consequently, the facing gap between the inner and outer compression impact surfaces 85a and 87a can be adjusted.

On the other hand, in the lower bearing housing 84,
The rotating vertical shaft 92 of the lower driving member 91 is pivotally supported via the radial bearing 84a and the thrust bearing 84b. The lower driving member 91 is located on the upper surface corresponding to the axis of the rotating vertical shaft 92, and has a spherical shape. A support seat 93 having an inner surface-shaped contact surface 93a is provided, and a lower coupling portion 91a having a required mass is vertically projected so as to surround the support seat 93 over a substantially half circumferential surface. Further, in the upper bearing housing 94, a shaft portion 86 of the inner holding body 86 is provided via a radial bearing 94a and a thrust bearing 94b.
The upper driven member 95 that pivotally supports the shaft a and also serves as the upper bearing housing 94 is also provided on the lower surface corresponding to the axis of the shaft 86a, and has a contact surface 96a having a spherical outer surface. Is provided, and an upper coupling portion 95a having a required mass is vertically extended so as to surround the support seat 96 over substantially a half circumferential surface.
The eccentric weight portions 95b are respectively projected outward.

Further, a V-pulley 97 is attached to a shaft end of the lower driving member 91 which extends below the rotary vertical shaft 92, and can be driven to rotate at a predetermined rotation speed via a V-belt 98. The inner peripheral edge of the rubber seal ring 99 fixed to the upper opening end of the inner cylinder 83 is pressed against the flange ring 88a of the outer holder 88 to be sealed. Reference numeral 100 denotes a chute formed in the outer cylinder 82, and reference numeral 100a denotes an outlet for the treated recovered plastic material 13 and the resin coating film 14.

The upper driven member 9 is placed on the contact surface 93a of the support seat 93 of the lower driving member 91.
5, the contact surface 96 a of the support seat 96 is placed and held in a normal state, so that the rotating shaft 92 of the lower driving member 91 and the shaft portion of the upper driven member 95, and thus the inner holding member 86, are normally provided. 86a and the lower coupling portion 91a of the lower driving member 91.
And the upper coupling part 95a of the upper driven member 95
Are opposed to each other with a predetermined gap therebetween, and the eccentric weight portion 95b projects outward from the upper coupling portion 95a.

Therefore, in the method of the second specific embodiment, the fourth compression impact applying device 80 having the above-described configuration is used.
Then, the lower driven member 91 is rotationally driven, and the upper driven member 95 and, consequently, the inner holding body 86 are interlocked and rotated by the coupling engagement between the lower coupling portion 95a and the upper coupling portion 95a. . At this time, an eccentric load corresponding to the centrifugal force generated by the eccentric weight portion 95b acts on the upper driven member 95, but due to the mass given to the lower coupling portion 91a and the upper coupling portion 95a. The upper driven member 95 is substantially integrally rotated in such a manner that the contact surface 96a is somewhat rubbed against the contact surface 93a.

Therefore, in the above embodiment, the inner holding member 8
6, the inner compression impact surface 8 of the inner compression impact member 85 connected to
5a and the outer compression impact member 8 connected to the outer holder 88
7 is supplied to the compression impact portion formed by the outer compression impact surface 87a of the first and second compression impact surfaces 87a. 85a and 87a, and the resistance of the compression impact surfaces 85a and 87a is brought about by the interposition of the small pieces 12 to be processed, and the rotation of the upper coupling part 95a and, consequently, the upper driven member 95. In spite of the driving, the rotation of the inner holding body 86, and eventually the inner compression impact surface 85a of the inner compression impact member 85 is temporarily stopped and idles, and the eccentric load by the eccentric weight portion 95b starts to be gradually applied, Contact surface 9 on contact surface 93a
6a becomes intense, and as a result, a compressive impact force due to micro-vibration, which is generated in a substantially horizontal direction with a rotating circular motion, is applied to each interposed small piece 12 to be processed. It is continuously added, and also receives crushing effects from various directions, including a directional sliding action,
Along with the crushing action including the sliding action corresponding to the directionality, the recovered plastic material 13 and the resin coating film constituting the small piece to be processed 12 are more efficiently and more effectively than in the case of the first compression impact applying device 20. The resin coating 14 is easily peeled off from the recovered plastic material 13 and separated from each other, and both are discharged downward. The resin coating film 14 is separated from the recovered plastic material 13 on time.

Next, a specific second embodiment method shown in FIG. 4 will be described.

In the method of the second embodiment, each of the first, second, third and fourth compression impact applying devices 2
Using 0, 30, 50, and 80, the resin coating 14 is peeled off and separated from the recovered plastic material 13 constituting the small piece 12 to be processed. Powerful
The following describes a countermeasure in the case where there is a small piece to be processed 12 which is discharged without separating the resin coating film 14 from the collected plastic material 13. In this way, the resin coating film 14 is not separated from the collected plastic material 13 without being separated. The discharged small pieces 12 are reground, polished and sized.

That is, in the case of the method of the second embodiment,
As described above and apparent from FIG. 4, the plastic molded product 11 is firstly crushed in a crushing step 101 by using a cutter mill 201 or the like to form a predetermined mesh screen formed by punching pores having a desired diameter. After being crushed to the end under, by the first sieving 101a, on the sieve 101b side, the small pieces 12 to be treated are left,
On the side below the sieve 101c, a small amount of the resin coating 14 peeled off at the time of crushing is removed.

Then, in the crushing / peeling step 102, the small pieces to be treated 12 left on the sieve 101b are subjected to the first to fourth devices 20, 30, 50 and 80 in the above-mentioned manner.
Receiving crushing, the exfoliation, the divided second sieve, this isゝincludes a second first-stage sieving 102a ₁ of over two stages, the second second-stage and sieving 102a ₂ is executed .

That is, the former second first stage sieving 102
At a ₁ , the recovered plastic material 13 which has been flattened due to sufficient crushing and the peeling action progresses is left on the sieve 102 b side. If it is not necessary to make the diameters uniform, the process is immediately shifted to the polishing and sizing step 103, and the polishing and sizing apparatus 15 described in detail later is used.
Polishing and sizing using 0
The corner edge portion of the collected plastic material 13 which is the sized product is rounded for polishing and is collected as the collected and sized plastic material 15 having further improved fluidity.

On the other hand, the second second stage sieving 102a
_{In 2} , a smaller piece 12 to be processed, which is not always sufficiently crushed and the peeling action has not progressed, is left, and in this case, the smaller piece 12 to be processed again in this case Returning to step 102,
In addition to the crushing, the resin coating 14 and the like peeled off by the repeated crushing are removed on the side of the under sieve 102c.

If it is necessary to make the collected particle diameters of the large recovered plastic material 13 left on the sieve 102b side uniform, then in the next re-milling step 104, for example, a disk mill 202 and the like, and the collected plastic material 13 is re-crushed, so that the
On the 4b side, the re-crushed small pieces 12 are left, and on the under-sieving side 104c, the collected plastic material 13 is separated, and the resin coating film 14 peeled off at the time of the re-grinding is removed. At this time, the small pieces 12 to be treated left on the sieve 104b are refluxed to the re-pulverizing step 104 until they reach the lower sieve 104c, or the same steps are repeated, and the separated recovered Subsequently, the plastic material 13 is moved to the next polishing / grain sizing step 105, and then polished and sized using, for example, a pin mill 203 or the like, so that a predetermined polished / granulated material is obtained. The collected and sized plastic material 15 sized to have a particle size within the range is collected.

As described above, in short, in the method of the second embodiment, variations can be made between the respective processing steps by various combinations, and the respective processing steps can be arbitrarily combined and set in accordance with the purpose and application. You can do it.

It is preferable that the polishing and sizing apparatus 150 employ the configuration shown in FIGS. 12 and 13.

Here, FIG. 12 shows that the recovered plastic material 13 from which the resin coating 14 has been removed is polished and sized so that the corners of the recovered plastic material 13 are rounded as a whole. FIG. 13 is a longitudinal sectional view schematically showing an example of a polishing and sizing apparatus 150 schematically illustrating a schematic configuration as an apparatus according to a fifth embodiment for collecting as a collected and sizing plastic material 15. Similarly, FIG. FIG. 3 is an explanatory front view for explaining the polishing and sizing operations of the configuration.

In the apparatus configuration shown in FIGS. 12 and 13, the polishing and sizing device 150
To be treated 12 obtained by coarsely crushing, or powder molded product 1
The supply inlet 152 of each workpiece 17 obtained by crushing 6 is
A fixed disk 151 having a communication opening at the center and a fixed end plate 15 connected to the fixed disk 151 by a peripheral side plate 154.
3 and polishing the fixed disk 151 on the fixed end plate 153 side.
The sizing space 181 is spaced apart from each other and the rotating horizontal axis 1
A movable disk 161 driven to rotate by 62 is provided for each, and the rotating horizontal shaft 162 is pivotally supported by bearings 163 and 163.

Then, on the fixed disk 151, each fixed pin 154 is sequentially implanted on a plurality of rotation trajectories a.
Further, on the movable disk 161, movable pins 164 that alternately enter on a plurality of rotation trajectories b different from the fixed pins 154 here are sequentially planted, and these fixed pins are fixed.
Polishing and sizing action can be obtained between the movable pins 154 and 164.
The discharge space 1 is provided between the outer peripheral side of the
82, a screen 171 of a predetermined mesh in which pores having a desired diameter are formed by punching, and a discharge space 1
82, a discharge port 172 is formed in the polishing and sizing space 181.
An outlet 173 is opened at a lower portion of the screen 171, and a plug valve 174 for opening and closing control is disposed in the outlet 173.

Therefore, the polishing and sizing apparatus 1 having the above configuration
At 50, each piece to be treated 12 or each piece to be treated 1
7 is supplied to the supply inlet 152, the small pieces 12 or the workpieces 17 are located at the center of the polishing and sizing space 181 and are fixed and movable pins 154.
164 are subjected to the polishing, sizing and centrifugal actions together, and gradually approach the outer peripheral side while being polished and sieved.
After passing through 71 and being distinguished in the discharge space 182,
The screen 1 is discharged to the outside through the discharge port 172 and
The collected and sized plastic material 15 or the sized powder material to be recovered which has been left in the polished and sized granule 71 is rounded as a whole or is removed from the outlet 173 by opening the plug valve 174. You can do it.

When the outlet port 173 and the supply inlet port 152 are communicated with the plug valve 174 opened, the collected and sized plastic material 15 taken out from the outlet port 173 or the collected and sorted plastic material 15 is removed. The granular powder material can be returned to the supply inlet 152, and continuous polishing and sizing can be performed.

In the second, third, and fourth compression impact applying devices 30, 50, and 80, each of them is formed from the recovered plastic material 13 constituting the small piece to be treated 12 by the resin coating. Although the description has been given of the case where the present invention is applied to peel and separate the plastic material 14, each of the compression impact applying devices 30, 50, and 80 is provided with the collected plastic material 13.
Not only applied to the peeling and separation of the resin coating film 14 from the substrate, but also an object 17 (not shown) obtained by crushing a powder molded product, in this case a relatively hard powder material, etc. The characteristics and characteristics of each object to be treated are also determined for crushing of the object to be treated and / or sizing or granulation of the object to be treated with a relatively soft powder material. The operating conditions of the compression impact force applying devices 30, 50, and 80, particularly the operation conditions of the directional micro-vibration in accordance with the properties, etc., are set in accordance with the gap setting between the inner and outer compression impact surfaces. By controlling and setting each of them, in this case, it can be easily applied as a corresponding crushing device, or a sizing device, or a granulating device.

That is, in the case of a pulverizing apparatus for the object to be treated with the relatively hard powder material or the like, the characteristics and properties of the object to be treated are relatively hard. On the other hand, in consideration of the fact that the viscosity is low and also fragile, as the directional micro-vibration conditions, for example, the width of the directional micro-vibration was shortened, and the intensity of the micro-vibration was set even stronger. By operating in the same manner as described above, the object to be supplied and introduced here has a small amplitude and a strong vibration applied between the inner and outer compression impact surfaces. Therefore, the crushing is carried out under a kind of intense and continuous tapping action, and as a result, the crushing operation can be performed efficiently, effectively, and excellently and easily.

In addition, as an apparatus for sizing and granulating the object to be processed by the other relatively soft powder material or the like, the characteristics of the object to be processed as opposed to the above-mentioned pulverization are opposite. In consideration of the fact that the properties are relatively soft and the properties are relatively soft, on the other hand, in consideration of the fact that it is highly viscous and has high waist strength, as the directional micro-vibration condition, for example, the width of the directional micro-vibration By setting it to be long and setting the intensity of micro vibration to a little weaker, and operating it in the same way as above,
Rolling between the respective compression impact surfaces is performed based on the long and weak vibration having a large amplitude where the object to be supplied supplied is applied between the inner and outer compression impact surfaces.
The kneading action is effectively applied, and the pertinent object itself is sized and granulated within a required particle size range, or the adjacent pertinent objects to be processed are intertwined with each other. It is sized and granulated within the required particle size range.
As a result, the granulation operation can be performed efficiently, effectively, well, and easily.

FIG. 5 shows the second, third, and fourth compression impact force applying devices 30, 50, and 80 as the corresponding crushing devices,
Or pulverization of an object to be processed, such as a relatively hard powder material, obtained by crushing a powder molded product using a sizing and granulating apparatus, and / or an object to be processed, such as a relatively soft powder material. A third specific example of the method of sizing and granulating a material is shown.
As described above, the pulverizing step 111 or the granulating step 112 is performed by each of the compression impact applying devices 30, 50, and 80, respectively.

Next, FIG. 14 is a systematic diagram of the processing steps showing in principle and schematically an outline of a practical method of crushing, separating and granulating a plastic material in the method of the present invention as the method of the fourth embodiment. It is.

Each processing step performed sequentially in the method of the fourth embodiment shown in FIG. 14 is as follows.

(A) [Crushing] Processing step 250. In this [crushing] processing step 250, the plastic molded product or the plastic material as a powder molded product is crushed to obtain each of the small pieces 12 to be processed once. As the means, for example, the cutter mill 201, in which a cutter mill 201 provided with a screen formed by punching fine holes having a hole diameter of about 4.0 m / m is used.

Therefore, in this [crushing] processing step 250, the plastic molded product is crushed by the cutter mill 201, and within the screen, even if subjected to the crushing action, the plastic molded product has a predetermined size. In ゝ, 4.0m / m
Each piece to be processed 12 having a size that cannot pass through the screen set to a size of about the hole is left, and is continuously and repeatedly crushed to the end until it reaches the predetermined size. On the other hand, by being crushed to at least a predetermined size, each of the small pieces 12 to be processed has passed through the screen.
Is obtained.

In this case, for each of the small pieces 12 to be processed passing through the screen, the size of the sieve is set to 1.0.
The sieving process is performed by using the sieving apparatus 400 set to about m / m, and the small pieces 12 to be processed that are not passed through the screen as a result of the sieving process are taken out on the sieve. That is, the resin coating film 14 and the like that have passed through the screen are discharged from below the sieve.

(B) [Primary compression, peeling-1] Processing step 2
51. In the [primary compression, peeling-1] processing step 251, each of the small pieces 12 to be processed obtained in the [crushing] processing step 250 is compressed and peeled in the first stage. In this case, in the first-stage compression / separation processing means, for example, in the configuration of the second compression impact force applying device 30, each of the inner compression impact surfaces 33a and the outer A compression impact force applying device 3 in which the compression impact force application granules each having a clearance between the compression impact surfaces 43a set to about 2.0 m / m are connected in two rows vertically.
01, and the compression impact force applying device 301
By receiving the peeling action, the size of the sieve for sieving each of the small pieces 12 to be processed that have been spread to be slightly larger is set to 2.5.
A sieving apparatus 401 set to about m / m is used.

Therefore, in the [first compression, peeling-1] processing step 251, each of the small pieces 12 to be processed crushed to a predetermined size by the crushing processing in the [crushing] processing step 250. However, the first and second compression compression impact surfaces 33a and 43a of the compression impact force application device 301 are each set to have a clearance of about 2.0 m / m. Under the action of compression and peeling, each of the small pieces to be treated 12 is spread slightly larger due to each compression impact force to be applied, and the resin coating 14 which has been applied is spread with this spreading. Is peeled off, and 2.
Sieving device 4 set to a sieve size of about 5 m / m
01 on the sieve, and on the sieve, the resin coating 14
Each of the small pieces 12 to be processed is left and taken out, and the resin coating film 14 including a part of each small piece 12 passing through the screen is discharged from under the sieve. Become.

(C) [Secondary Compression and Peeling-2] Processing Step 2
52. In the [secondary compression, release-2] processing step 252, the [primary compression, release-1] processing step 25
The first compression and peeling treatment in step 1 causes each of the small pieces 12 to be treated to be slightly larger on a screen which has been spread and divided and sieved, and then compressed and peeled in the second stage. As described above, the second-stage compression / separation processing means is provided with a damper portion to appropriately connect each inner compression impact surface 33a to the inner compression impact surface 33a. Each clearance between the outer compression impact surfaces 43a is 1.0 m / m
The compression impact force application device 302 in which the compression impact force application portions set to the degree are connected in two rows vertically and the compression impact force application device 302 are subjected to the compression and peeling actions.
A sieving apparatus 402 having a sieve size of about 2.5 m / m for sieving each of the small pieces 12 to be processed, which has been spread larger, is used.

Therefore, in this [secondary compression, peeling- 2] processing step 252, the sheet is spread to a predetermined size by the primary processing in the above [first compression, peeling- 1] processing step 251. The small pieces 12 to be processed are placed between the two inner compression impact surfaces 33a and the outer compression impact surfaces 43a, each of which is set to have a clearance of about 1.0 m / m of the compression impact applying device 302 here. Each of the small pieces to be processed 12 is again subjected to a secondary compression and peeling action, so that each of the small pieces to be processed 12 is further expanded to a larger size due to the compression impact force applied again. Along with this spreading, the resin coating film 14 remaining in a part was peeled off, and 2.5 m /
On the sieve of the sieving device 402 set to a sieve size of about m, the resin coating 14 is peeled off, including a part of the resin coating 14 that is not peeled off, in the same manner as described above. Each of the small pieces 12 to be processed is left and taken out, and similarly, the resin coating film 14 including a part of each small piece 12 to be processed is discharged through the screen from below the sieve. become.

(D) [Cutting dispersion, peeling] processing step 253.
In the [cutting / dispersing / peeling] processing step 253, the secondary compression and peeling treatment is performed in the [secondary compression / peeling- 2] processing step 252, whereby the sheet is further expanded to a larger size. Because of the necessity of the subsequent treatment of each of the larger and smaller pieces to be treated 12 on the sieve which has been classified, for example, the particle size of each recovered sized plastic material 15 to be finally recovered is substantially predetermined. For the purpose of cutting and dispersing and peeling from the necessity such as making it within the particle size range of
In this case, the cutting / dispersion / peeling treatment is performed again as the crushing treatment, and the cutting / dispersion / separation means is provided with about 6.0 m / m as in the case described above. A cutter mill 202 provided with a screen formed by punching pores having a hole diameter;
Is subjected to the cutting, dispersing, and peeling actions, whereby the size of a sieve for sieving each of the small pieces 12 to be processed, which has been cut and dispersed to a required size, is set to about 1.0 m / m. A separating device 403 is used.

Therefore, in this [cutting / dispersing / peeling] processing step 253, each of the pieces spread to a predetermined size by the secondary processing in the [secondary compression / peeling-2] processing step 252 described above. The small pieces 12 to be treated are subjected to the cutting and dispersing and peeling actions by the cutter mill 202 here, and the small pieces 12 to be treated including the ones that remain until the resin coating film 14 is not peeled off in a part thereof. However, the resin film 14 is cut again into a predetermined size, and with the cut again, the resin coating film 14 that has been applied in part is also peeled off. Even after receiving the action, each piece to be processed 12 having a size that cannot pass through the screen set to a predetermined diameter of about 6.0 m / m in this case is left, and is reduced to the predetermined size. Until it reaches the end, And of being cleaved distributed to, whereas, by being cut to at least a predetermined magnitude, the fragments to be processed 12 through the screen can be obtained.

Even in this case, each of the small pieces 12 to be processed having passed through the screen is sieved by using a sieving apparatus 403 having a sieve size of about 1.0 m / m. As a result of the sieving process, each of the small pieces 12 to be processed is left out without passing through the screen, including a part of the resin coating 14 which is not peeled off. In other words, the resin coating film 14 partially containing each of the small pieces to be processed 12 having passed through the screen is discharged from below the sieve. In addition, this [cutting dispersion,
Peeling] treatment step is to obtain the recovered and sized plastic material 1
When it is not necessary to prepare the particle size of No. 5, it may be omitted.

(E) [Third compression, peeling-3] treatment step 2
54. In this [third compression, peeling-3] processing step 254, the sheet is cut and dispersed again to a required size by being cut and separated and peeled in the [cutting / dispersing / peeling] processing step 253, and Each of the small pieces 12 to be treated on the sieve classified and sieved is subjected to compression and peeling treatment in the third stage. Similarly, the clearance between each inner compression impact surface 33a and each outer compression impact surface 43a is set to 0.8 m / m by appropriately interposing a damper portion.
The compression impact force application device 303 in which the compression impact force application portions set to the degree are connected in two rows vertically and the compression impact force application device 303 are subjected to compression and peeling action,
Again, a sieving device 404 with a sieve size of about 2.5 m / m for sieving each of the small pieces 12 to be processed that have been spread slightly larger is used.

Therefore, in the [third compression, peeling-3] processing step 254, the cutting / separating and peeling processing is performed in each of the processing steps 250 to 253 in the [cutting / dispersing and peeling] processing step 253. According to each piece to be processed 12 of
The resin coating film 14 partially containing each of the small pieces to be processed 12 discharged from each of the processing steps 250 to 253 is applied to each of the clearances of about 0.8 m / m of the compression impact force applying device 303 here. A third (final) compression and peeling action is sequentially performed between each of the set of two inner compression impact surfaces 33a and the outer compression impact surface 43a, so that each of the small pieces 12 to be treated 12
However, due to the compressive impact force applied again and again, the resin coating 14 is further enlarged, and the resin coating film 14 which has been partially left is also peeled off with this spreading. In the same manner as described above, on the sieve of the sieving apparatus 404 set to a sieve size of about 2.5 m / m, a part of the resin coating film 14 from which the resin coating film 14 is not peeled is used. Comprise,
Each piece to be treated 12 from which the resin coating film 14 has been peeled off is left and taken out. Similarly, the resin coating containing a part of each piece to be treated 12 that has passed through the screen is also removed from under the sieve. The film 14 is discharged, and the resin coating film 14 partially containing each of the discharged small pieces 12 to be processed is also returned to its own compression impact applying device 303.

At the time of screening the resin coating film 14 partially containing each of the small pieces to be processed 12 discharged from each of the above-mentioned processing steps 250 to 254, the respective screening devices 400 to 400-4 are used.
By setting the size of the sieve of No. 04 to 1 mm, the small piece 12 to be treated contained in the resin coating film 14 taken out under the sieve is
Can be reduced as much as possible. As a result, 1
sieving apparatus 400-404 with a sieve size of mm
Is provided in each of the processing steps 250 to 254, the resin coating film 14 including the small pieces 12 to be processed is partially taken out under the sieves of the sieving apparatuses 400 to 404.
It is preferable to take out and separate from the above-mentioned processing step without undergoing recompression and peeling processing by the processing step 254 of peeling-3.

(F) [Sizing and Separation] Processing Step 255. In this [granulation, separation] processing step 255,
Next compression, peeling-3] Third (final next) in processing step 254
Each of the small and large pieces to be treated 12 on the sieve which has been slightly expanded and sieved by being compressed and peeled, ie, in this case, in other words, each recovered plastic material 13 is finally sized to obtain a collected and sized plastic material 15. The sizing and separating means in the final stage includes the polishing and sizing device 1
50 and 50, a polishing and sizing apparatus 150 provided with a screen formed by punching pores having a pore diameter of about 1.0 m / m, and a collected and sized plastic material 15 remaining as a product left in the screen. A blower 501 for sucking and taking out is used.

Therefore, this [granulation, separation] processing step 25
5, the [third compression, peeling-3] processing step 25
In the second (final next) processing in step 4, each of the collected plastic materials 13 as the small pieces to be processed 12 which has been spread to a predetermined size is sized by the polishing and sizing apparatus 150 here. Due to the separation action, each of the collected plastic materials 13 is sized, and in this case, the collected and sized plastic material 15 having a size that cannot pass through a screen having a hole diameter of about 1.0 m / m, that is, In this case, the collected and sized plastic material 15 as a product is left, and the collected and sized plastic material 15 as the product is suctioned and taken out by the blower 501, and is handled like dust through a screen. The resin coating film 14 and the like having a predetermined size or less including the collected waste is sucked by the blower 603 and discharged.

(G) [Classification, separation] processing step 256. In this [classification and separation] processing step 256, the collected and sized plastic that is formed into a product by being subjected to sizing and separation processing in the [sizing and separation] processing step 255, and is taken out by suction by the blower 501. This is for classifying the material 15 and the resin coating film 14 still containing a part of dust and debris, etc., respectively, and the classifying / separating means is, for example, a known type corresponding to the former classifying. And a known back filter device 602 corresponding to the latter classification, and a blower 603 necessary for a suction action in the back filter device 602.

Therefore, this [classification, separation] processing step 25
6, in the aforementioned [sizing and separation] processing step 255,
Each collected and sized plastic material 15 as a product partially containing the separated dust, debris, and the like is supplied to the cyclone device 60.
1 and the collected and sized plastic materials 15
Can be taken out as a recovered product as expected by collecting it. The dust and debris separated by the cyclone device 601 are combined with the resin coating 14 partially including the dust and debris discharged outside the screen in the previous stage, and then the suction action of the blower 603 is performed. And is separated by the back filter device 602 and collected.

The collected and sized plastic material 15 thus obtained can be used as it is for plastic molding, but the resin coating 14 is formed from the collected and sized plastic material 15 obtained here. Not completely removed,
If the recovered sized plastic material 15 has a relatively small percentage of the resin coating 14,
Can be used as a plastic material that does not hinder plastic molding by crushing and pulverizing the collected and sized plastic material 15 containing, for example, 100 μm or less. The back filter device 60
2 can be used as a plastic material by, for example, pulverizing the resin coating 14 under 100 μm or the like. The film can also be used together as a plastic material that does not hinder plastic molding.

As described above, in short, in the method of the fourth embodiment as well, variations can be made between the respective processing steps by various combinations, and the respective processing steps can be arbitrarily determined according to the purpose and application. Combination settings can be made.

[0111]

As described above in detail in each embodiment, in the present invention, after a plastic molded product is crushed into a plurality of small pieces to be treated, each of the small pieces to be treated is finely divided. The compression impact force based on the vibration is applied to cause crushing, and the crushing action separates and removes the resin coating from each of the small pieces to be treated. It can be easily and easily recovered as a plastic material that can be used as a molding material.Furthermore, each of the small pieces to be treated is crushed again, and the crushed particle size is adjusted to a predetermined particle size range or less. Therefore, each of these crushed pieces is polished by applying an impact milling force to form a sized product within a predetermined particle size range. Plasticize the sized granules inside Than it is readily and easily recovered as a plastic material which can be used as a molding material.

Further, according to the present invention, the inner compression impact surface of the inner compression impact member and the outer compression impact surface of the outer compression impact member are opposed to each other at a predetermined distance from each other. Micro-vibration is applied to at least one of the compression impact members, and the small pieces to be processed, which are supplied between the inner and outer compression impact surfaces, are compressed by the compression impact force based on the micro-vibrations. It is possible to easily and easily peel off and remove the coating film on the surface by crushing.

[Brief description of the drawings]

FIG. 1 is a perspective explanatory view conceptually and schematically showing each example of a plastic molded article to be treated according to the present invention and a small piece to be treated obtained by crushing the plastic molded article.

FIG. 2 is a system explanatory diagram of processing steps showing, in principle and schematically, an outline of a method of recovering a plastic material according to the first embodiment of the present invention, in which the method is basically applied.

FIG. 3 is a schematic structural view schematically showing an outline of a first compression impact force applying device as a first embodiment device used in the first embodiment method.

FIG. 4 is a systematic explanatory diagram of processing steps showing, in principle and schematically, an outline of a method of recovering a plastic material according to a second embodiment of the present invention when the method is applied.

FIG. 5 is a system explanatory diagram of a processing step which shows in principle and schematically an outline of a pulverization, separation and granulation process of a powder material or the like according to a third embodiment method of the present invention.

FIG. 6 is a partial sectional view of a part A schematically showing the schematic configuration of a second compression impact force applying / granulating apparatus as a second embodiment apparatus used in the second and third embodiment methods; FIG.

FIG. 7 is a cross-sectional view of a main part in FIG.

FIG. 8 is a partial sectional view of a part B schematically showing a schematic configuration of a third compression impact force applying / granulating apparatus as a third embodiment apparatus used in the second and third embodiment methods; FIG.

FIG. 9 is a plan view of the inner compression impact member in FIG. 8;

FIG. 10 is a longitudinal sectional view schematically showing a schematic configuration of a fourth compression impact force applying / granulating apparatus as a fourth embodiment apparatus used in the second and third embodiment methods. .

11 is a cross-sectional view of a main part in FIG.

FIG. 12 is a longitudinal sectional view schematically showing a schematic configuration of a fifth polishing and sizing apparatus as a fifth embodiment apparatus used in the second and third embodiment methods.

FIG. 13 is an explanatory front view for explaining the polishing and sizing operation in FIG. 12;

FIG. 14 is a system explanatory diagram of processing steps showing, in principle and schematically, an outline of a method of collecting a plastic material according to the present invention, in which a more practical fourth embodiment method is applied.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 11 Plastic molded article to be processed 12 Small piece to be treated 13 Base member (recovered plastic material) 14 Resin coating 15 Collected plastic material (recovered sized plastic material) 16 Powder molded article 17 Workpiece 20 First compressive impact force applied Apparatus 21a, 21b Compression impact member 22a, 22b Compression impact surface 23 Compression impact portion 24 Input opening 25 Projection 30 Second compression impact force applying device 31 Lower device main body 31a Removal hopper 32 Base 33 Inner compression impact member 33a Inner compression impact Surface 33b Upper surface 34 Support pillar 40 Elastic member for vibration isolation 41 Upper vibrating main body 41a Input hopper 41b Intermediate hopper 42 Vibration motor (vibration generating means) 42a Bracket 43 Outer compression impact member 43a Outer compression impact surface 50 Third Compression impact force adding device 51 Lower device main body 5 a Take-out hopper 52 Base 53 Inner compression impact member 53a Inner compression impact surface 53b Upper surface 53c Guide projection 54a Upper shaft support 54b Lower shaft support 55 Rotation vertical shaft 55c Tube shell 56 Bearing 57 Rotational horizontal shaft 58 Shaft cylinder 58a Bearing 59a, 59b Bevel gear 60 Geared motor 61 Coupling 70 Elastic member for vibration isolation 71 Upper vibrating main body 71a Input hopper 71b Intermediate hopper 72 Vibration motor 72a Bracket 73 Outer compression impact member 73a Outer compression impact surface 80 Fourth compression impact Force applying device 81 Base plate 82 Outer cylinder 83 Inner cylinder 84 Lower bearing housing 84a Radial bearing 84b Thrust bearing 84c Flange 85 Inner compression impact member 85a Inner compression impact surface 86 Inner holder 86a Shaft 87 Outer compression impact member 87a Outer compression impact Face 87b Outside introduction surface 88 Outside holding body 88a Flange ring 89 Suppression ring 90 External handle 91 Lower driving member 91a Lower coupling part 92 Rotating vertical shaft 93 Support seat 93a Contact surface of spherical inner surface 94 Upper bearing housing 94a Radial bearing 94b Thrust bearing 95 Upper driven member 95a Upper coupling part 95b Eccentric weight part 96 Support seat 96a Contact surface of spherical outer surface 97 V pulley 98 V belt 99 Rubber seal ring 100 Chute 100a Outlet 101 Crushing step 101a First sieving 101b On sieving 101c Under sieve 102 Crushing / peeling step 102a Second sieving 102b Above sieve 102c Under sieving 103 Polishing and sizing step 104 Re-pulverizing step 104a Third sifting 104b On sieving 104c Under sieving 105 Polishing / sizing step 111 Pulverizing step112 Granulation process 150 Grinding and sizing device 151 Fixed disk 152 Supply inlet 153 Fixed end plate 154 Fixed pin 155 Peripheral side plate 161 Movable disk 162 Rotating horizontal shaft 163 Bearing 164 Movable pin 171 Sieve mesh 172 Discharge port 173 Take-out port Part 174 Plug valve 181 Polishing / granulation space 182 Discharge space 201, 202 Cutter mill 202 Disk mill 203 Pin mill 250 [Coarse crushing] Processing step 251 [Primary compression, peeling-1] Processing step 252 [Secondary compression, Exfoliation-2] Processing step 253 [Cutting and dispersing] Exfoliation processing step 254 [Third compression, exfoliation-3] Processing step 255 [Sizing and separation] processing step 256 [Classification and separation] processing step 301-303 Compression impact Force applying device 400-404 Sieving device 501 Blower 601 Cyclone device 6 2 back filter device 603 blower

──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-6-106089 (JP, A) JP-A-1-1844043 (JP, A) JP-A-53-98362 (JP, A) JP-A-57-9857 36616 (JP, A) (58) Field surveyed (Int. Cl. ⁷ , DB name) B29B ⁷ /00-17/02 B02C 2/04 B02C 18/00-18/44 B02C 19/16

Claims (20)

(57) [Claims] 1. A method for separating and removing a resin coating film from a plastic molding product having a resin coating film formed on a surface thereof and recovering the plastic coating material as a plastic material. A step of crushing the molded article into a plurality of small pieces to be treated, and at least including a step of applying a compressive impact force based on micro-vibration to each of the small pieces to be crushed and crushing the pieces. Characteristic plastic material recovery method. 2. A method for separating and removing a resin coating film from a plastic molded product on a plastic molded product having a resin coating film formed on a surface thereof and recovering the plastic coating material as a plastic material. A step of crushing the molded product into a plurality of small pieces to be treated; and applying a compressive impact force based on micro-vibration to the individual small pieces to be crushed, and crushing, and peeling off by crushing. Removing the resin coating film. 3. A method for separating and removing a resin coating film from a plastic molded product having a resin coating film formed on a surface thereof as a target, and recovering the plastic coating material as a plastic material. A step of crushing the molded product into a plurality of small pieces to be treated; and applying a compressive impact force based on micro-vibration to the individual small pieces to be crushed, and crushing, and peeling off by crushing. A method of recovering a plastic material, comprising at least a step of removing a resin coating film and a step of polishing and sizing each of the small pieces to be processed from which the resin coating film has been removed. 4. A method for separating and removing a resin coating film from a plastic molded product for a plastic molded product having a resin coating film formed on a surface thereof, and recovering the plastic coating material as a plastic material. A step of crushing the molded article into a plurality of small pieces to be treated; and a step of applying a compressive impact force based on the micro-vibration to each of the crushed small pieces to be crushed, or Applying a compression impact force based on crushing, removing the resin coating film peeled off by crushing, re-grinding each of the crushed small pieces to be treated, Removing the separated resin coating film at least. 5. A method for separating and removing a resin coating film from a plastic molded product on a plastic molded product having a resin coating film formed on a surface thereof and recovering the plastic coating material as a plastic material. A step of crushing the molded article into a plurality of small pieces to be treated; and a step of applying a compressive impact force based on the micro-vibration to each of the crushed small pieces to be crushed, or Applying a compression impact force based on the crushing, crushing, removing the resin coating peeled off by crushing, re-grinding each of the crushed small pieces to be treated, and crushing each of the crushed individual pieces. A method of recovering a plastic material, comprising at least a step of applying an impact-milling force to a piece to perform polishing and sizing. 6. A method of separating and removing a resin coating film from a plastic molded product having a resin coating film formed on a surface thereof and recovering the plastic coating material as a plastic material. A step of crushing the molded article into a plurality of small pieces to be treated; and a step of applying a compressive impact force based on the micro-vibration to each of the crushed small pieces to be crushed, or Applying a compression impact force based on the crushing, crushing, removing the resin coating peeled off by crushing, re-grinding each of the crushed small pieces to be treated, and crushing each of the crushed individual pieces. A process of applying impact milling force to a piece to polish and sieving, and separating the sieved sized product and the resin coating separated by the sizing, the resin coating Process to remove Recovering method for a plastic material, which comprises the at Ku. 7. The method according to claim 1, wherein the crushing of each of the small pieces to be processed is performed by applying an impact force based on directional micro-vibration between the compression impact surfaces facing each other. , 2, 3, 4, 5, and 6. 8. The method according to claim 1, wherein in the step of crushing each of the small pieces to be processed, the resin coating film separated from the surface of each small piece to be processed by the crushing action is removed.
The method for recovering a plastic material according to any one of 3, 4, 5, and 6. 9. The re-grinding step of each of the small pieces to be treated, wherein the re-grinded particles have a particle size equal to or smaller than a predetermined particle size range. The method for collecting a plastic material according to any one of the above. 10. The method according to claim 1, wherein the step of crushing each of the small pieces to be processed is continuously repeated a plurality of times.
The method for collecting a plastic material according to any one of 2, 3, 4, 5, and 6. 11. The method according to claim 4, wherein the step of re-grinding each of the small pieces to be treated is continuously repeated a plurality of times. 12. The method according to claim 1, wherein the step of crushing each of the small pieces to be processed is repeated a plurality of times with another step interposed. The method for collecting plastic materials described in (1). 13. The plastic according to claim 4, wherein the step of re-grinding each of the small pieces to be treated is repeated a plurality of times with another step interposed. Material collection method. 14. A method for separating and removing a resin coating film from a plastic molded product having a resin coating film formed on a surface thereof and recovering the resin coating material as a material. A separating device, comprising: a pair of compression impact members each having a compression impact surface facing each other with a predetermined gap therebetween; and crushing the plastic molded product above each compression impact member. Forming a supply opening for sequentially supplying the obtained small pieces to be processed, wherein at least one of the compression impact members can be slightly vibrated with respect to the other; apparatus. 15. The resin coating film separating apparatus according to claim 14, wherein at least one compression impact surface of each compression impact member is provided with an independent projection group. 16. With respect to a plastic molded product having a resin coating formed on its surface, a resin coating used in a method of separating and removing the resin coating from the plastic molded product and recovering it as a materialized plastic material. A separating device, comprising: an inner compression impact member having an inner compression impact surface; and an outer compression impact member having an outer compression impact surface opposed to the inner compression impact surface with a predetermined gap therebetween. A charging opening for supplying a small piece obtained by crushing the plastic molded article is formed above the outer compression impact surfaces, and at least one of the inner and outer compression impact members is formed. An apparatus for separating a resin coating film, wherein the separation apparatus is configured to be capable of applying micro vibration. 17. The inner and outer compression impact surfaces are formed in a combination of any one of a conical shape and a frusto-conical shape, and these are parallel to each other or expanded upward. 17. The apparatus for separating a resin coating film according to claim 16, wherein the apparatus is configured to face each other. 18. The resin coating according to claim 16, wherein the inner and outer compression impact surfaces are formed in a mutual combination with each arc surface shape, and these are opposed to each other. Membrane separation device. 19. The apparatus according to claim 19, wherein each of the inner and outer compression impact surfaces is formed in a conical shape or a combination of a truncated conical shape and an arc surface shape, and these are configured to face each other. The apparatus for separating a resin coating film according to claim 16. 20. A plurality of guide projections for guiding and supplying each of the small pieces to be processed to the inner compression and impact surface side on the supply surface of each of the small pieces to be processed by the inner compression impact member, 17. The apparatus for separating a resin coating film according to claim 16, wherein the apparatus is provided so as to correspond to the following.