JP3388146B2 - Synthetic resin laminate separation and separation equipment - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for separating and classifying a synthetic resin material laminate, which separates and separates a synthetic resin skin material and a synthetic resin cushion material which are joined together to form a synthetic resin material laminate. Regarding

[0002]

2. Description of the Related Art Recently, it has been strongly demanded to reuse a waste material of a synthetic resin material laminate which is used as an interior material for automobiles or the like and which is made by joining a synthetic resin skin material and a synthetic resin cushion material. In recycling, it is first necessary to separate and separate the synthetic resin material laminate into a skin material and a cushion material.

[0003]

However, at present, there has not been devised a separating / separating apparatus for a synthetic resin material laminate capable of efficiently separating and separating the synthetic resin material laminate into a skin material and a cushion material. .

Therefore, it is an object of the present invention to provide an effective separating / separating apparatus for a synthetic resin material laminate capable of efficiently separating and separating the synthetic resin material laminate into a skin material and a cushion material.

[0005]

In order to achieve the above object, the present invention separates a synthetic resin skin material and a synthetic resin cushion material which are bonded to each other to form a synthetic resin material laminate. An apparatus for separating and separating a synthetic resin material laminate, comprising: a drum; an annular sieve member which is disposed inside the drum to define a separation chamber between the drum and an inner peripheral surface; To
A rotary plate arranged concentrically with the rotary plate; a rubbing member fixed to the rotary plate and facing the inner peripheral surface of the sieve member with a constant gap therebetween; and a drive means for rotationally driving the rotary plate. The rubbing member rubs a shard group of the synthetic resin material laminate put into the sieving member against the sieving member to allow the smashing member to pass through the sieving member while crushing the cushioning material of each shard. The first feature is that it is adapted to be accepted by the.

According to this feature, not only is the rubbing member rotating with the rotating plate rubbed the fragments of the synthetic resin laminate on the sieve member, but also the rotating airflow generated in the drum by the rotation of the rubbing member causes the broken pieces. By rubbing the group against the sieve member, the relatively brittle cushion material of each fragment can be crushed and separated from the skin material. At that time, since a constant gap is provided between the sieve member and the rubbing member, the relatively tough skin material of each fragment passes through the gap, escapes crushing, and remains in the sieve member.
On the other hand, the crushed cushion material passes through the sieve member and is received in the separation chamber. Thus, the fragments of the synthetic resin material laminate are automatically and efficiently separated and separated into the skin material and the cushion material in the drum.

In addition to the above features, the present invention has a second feature that an edge protruding inward in the radial direction of the sieve member is formed at the peripheral edge of the mesh of the sieve member.

According to this feature, the cushioning material is crushed by the scratching effect of the edge on the debris,
The peeling is performed more effectively.

Further, in addition to the first or second characteristic, the present invention further comprises a first discharge pipe for extracting the cushion material received therein to the outside, which is connected to the separation chamber, and in the sieve member. The third feature is that a second discharge pipe for connecting the remaining epidermis to the outside is connected.

According to this feature, the skin material and the cushion material separated and separated in the drum can be individually taken out by the first and second discharge pipes.

[0011]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The embodiments of the present invention will be described below based on the embodiments of the present invention shown in the accompanying drawings.

In FIG. 1, a synthetic resin material laminate A for an automobile interior material which has been scrapped is, for example, PVC, ABS or P.
A skin material a made of P (polypropylene) or the like and a cushion material b made of polyurethane foam, PP foam, PE (polyethylene) foam or the like are adhered or fused to each other. Before carrying out, the laminate A is crushed to obtain a large number of pieces of the laminate A of 3 to 6 mm square.
Then, as shown in FIG. 2, these laminate A debris are
According to the present invention, it is applied to the separation / sorting apparatus 1 to separate the fragments of the skin material a and the powder of the cushion material b, and to sort them.

The separating and sorting apparatus 1 will be described with reference to FIGS. 2 to 7.

First, in FIGS. 3 and 4, a machine drum 2 of the separation / sorting apparatus 1 has a cylindrical drum 3 with an axis horizontal, and an electric motor 4 (with a rotor shaft 4a parallel to the axis). Drive means) is attached. The drum 3 is a cylinder 5 having a pair of inward flanges 5a and 5b at both left and right ends.
And an end plate 6 that is fixed to the right flange 5b and closes the right end surface of the cylinder 5, and a hinge 18 on the left flange 5a.
And a door 7 that opens and closes the left end surface of the cylinder 5 by being connected via the. The drum 3 is fixed to the machine base 2, and the door 7
Are normally held closed by a clamp 19 provided on the drum 3.

As shown in FIGS. 3 and 5, an annular sieve unit 8 is mounted on the drum 3. This sieve unit 8
Includes a ring-shaped sieve member 9, a pair of left and right ring bodies 10a and 10b that engage with both ends of the sieve member 9, and a reinforcing ring 11 that fits around the outer periphery of the sieve member 9 in the axial direction. The ring bodies 10a, 10b and the reinforcing ring 11 are integrally coupled by a large number of bolts 13 via a large number of distance collars 12 arranged in the circumferential direction on the outer peripheral side of the sieve member 9. When the sieve unit 8 is attached to the drum 3, the left and right ring bodies 1
0a, 10b are fitted to the inner circumferences of the left and right flanges 5a, 5b of the cylinder 5. Then, in order to prevent the rotation of the sieve unit 8, the positioning pin 14 protrudingly provided on the outer surface of the right ring body 10b is fitted into the positioning hole 15 provided on the inner surface of the end plate 6. . Thus, an annular separation chamber 17 is defined between the inner peripheral surface of the cylinder 5 of the drum 3 and the screen member 9.

As shown in FIG. 6, each mesh 9a of the sieve member 9
Is formed smaller than the above-mentioned fragments of the laminate A, and a part or the whole circumference of the mesh 9a thereof is formed on an edge 9b protruding inward in the radial direction of the sieve member 9.

Referring again to FIGS. 3 and 4, in the drum 3, a rotary plate 20 adjacent to the inner surface of the end plate 6 is arranged concentrically with the drum 3. At the periphery of the rotary plate 20,
A plurality of (four in the illustrated example) rubbing members 2 arranged at equal intervals
1 is bolted. Rotating shaft 2 for supporting rotating plate 20
2 is supported by a bearing 23 on the machine base 2 through the end plate 6 in an airtight manner, and the rotating shaft 22 is connected to the rotor shaft 4a of the electric motor 4 via a belt transmission device 24. Therefore, the rotary plate 20 can be rotated by the operation of the electric motor 4.

As shown in FIGS. 3 and 7, each rubbing member 21 has a constant gap 2 over the entire width of the sieve member 9.
5 and has a facing surface 21a facing each other, and the facing surface 21a is a surface parallel to the tangent to the peripheral surface of the sieve member 9 or a slope having an upward slope in the rotation direction R of the rotary plate 20. 21a '. The rubbing member 21 is formed so that the front edge of the facing surface 21a in the rotation direction R becomes the edge 26.

On the door 7, a hopper 28 for throwing the pieces of the laminate A into the drum 3, one or a plurality of water discharge nozzles 29 for discharging water into the drum 3, and a temperature sensor 30 for detecting the temperature inside the drum 3. Are attached to the water discharge nozzle 29, and are connected to a cooling water supply source 32 such as tap water through a water pipe 31. The water pipe 31 is provided with a valve 33.
When the temperature sensor 30 detects a temperature of 70 ° C. or more in the drum 3, the valve is opened by the detection signal. Further, the door 7 is provided with a peep window 27 closed by a transparent lid 27a.

As shown in FIGS. 2 and 4, the cylinder 5 of the drum 3 is provided with first and second discharge ports 35 ₁ and 35 ₂ opening to the separation chamber 17 at the lower and upper portions thereof, respectively. Both the discharge ports 35 ₁ and 35 ₂ are connected to the first cyclone 37 ₁ via the first discharge pipe 36 ₁ , and the first discharge pipe 3 1
A first electric blower 38 ₁ is provided in the middle of 6 ₁ .

On the other hand, in the lower part of the sieve unit 8, in the second discharge port 35 ₂ , the smaller third discharge port 35 ₃
Is provided so as to open inside the sieve member 9, and the third
The first discharge pipe 36 ₂ connected to the discharge port 35 ₃ penetrates the side wall of the first discharge pipe 36 ₁ in the middle thereof and is connected to the second cyclone 37 ₂ . A second electric blower 38 ₂ is provided on the first discharge pipe 36 ₂ .

First and second cyclones 37 ₁ , 37
₂ has an exhaust port 41 provided with a filter 40 at the upper part and an outlet port 42 at the lower part, and the first and second tanks 43 ₁ and 43 ₂ are installed directly below these outlet ports 42, respectively.

The third discharge port 35 ₃ is opened and closed by a shutter 45. The shutter 45 is provided with a pivot 45a rotatably supported by a bracket 46 provided on the drum 3, and a lever 47 fixed to the pivot 45a,
An operating rod 48a of an air cylinder 48 arranged below the drum 3 is connected. Therefore, the shutter 45 can be opened and closed by the operation of the air cylinder 48.

Next, the operation of this embodiment will be described.

In using the separation / sorting apparatus 1 of the present invention, first, the electric motor 4 is operated to rotate the rotary plate 13 while the third discharge port 35 ₃ is closed by the shutter 45, and at the same time the first electric motor is operated. Operate the blower 38 ₁ . Rotating plate 2
According to the rotation of 0, the rubbing member 21 fixed to the rotary plate 20 and the sieve member 9 fixed to the drum 3 are separated by a constant gap 2
5 and the first electric blower 38 ₁ is operated, the air flowing into the drum 3 from the hopper 28 is discharged from the first and second discharge ports 35 ₁ and 35 _2. The first discharge pipe 36 ₁ merges into the first cyclone 37
Creates an air flow reaching ₁ .

In this state, when a certain amount of the pieces of the laminate A are put into the drum 3 from the hopper 28, the pieces of the laminate A that have entered the gap 25 are rubbed by the rubbing member 21 to make the sieve member 9.
The cushion material b, which is relatively fragile, can be crushed and peeled off from the skin material a, with almost no crushing of the skin material a of each of the laminate A fragments.

In this case, a part or the entire circumference of the mesh 9a of the screen member 9 is formed at the edge 9b which is bulged inward in the radial direction of the screen member 9, so that a laminate of the edges 9b is formed. Due to the scratching effect on the A fragments, the cushion material b can be effectively crushed and separated.

If the facing surface 21a of the rubbing member 21 with respect to the sieve member 9 is formed as a slope 21a 'having an upward slope in the rotation direction R of the rotary plate 20 as described above, the rubbing member 21 will be used. Laminate A Fragment Group Sieve Member 9
The effect of rubbing against the cushion material b can be enhanced, and the cushion material b can be effectively crushed and peeled.

Further, since the rubbing member 21 has an edge 26 formed at the front edge of the facing surface 21a in the direction of rotation R, the edge 26 is formed during the rotation of the rubbing member 21. It is possible to increase the crushing and peeling effect of the cushioning material b by giving a shock to the.

Furthermore, the rotation of the rubbing member 21 also generates a rotating air flow in the drum 3, and the air fragments also rub the fragments of the laminate A against the sieve member 9 without substantially crushing the skin material a. The cushion material b can be crushed and separated from the skin material a.

The cushion material b powder thus pulverized and peeled off passes through the sieve member 9 and is received in the separation chamber 17, and then from the first and second outlets 35 ₁ and 35 ₂ .
The carried in the first cyclone 37 ₁ ride on the air current toward the first cyclone 37 ₁ through the discharge pipe 36 _1. Finally, only the skin material a remains in the sieve unit 8.

By the way, in the drum 3, the temperature rises due to the heat generated by the crushing and peeling of the cushion material b.
When the temperature exceeds 70 ° C., the temperature sensor 30 detects it and sends a valve opening signal to the valve 33 of the water pipe 31 to open it, so that the water from the cooling water supply source 32 is discharged from the water discharge nozzle 29. A proper amount of water is discharged to the drum 3 through the water, and the excessive temperature rise in the drum 3 can be suppressed by the evaporation of the water, and the fusion of the fragments of the laminate A due to the excessive temperature rise can be avoided in advance. The water vapor generated at this time goes out from the first and second discharge ports 35 ₁ and 35 ₂ together with the cushioning material b powder, and is sent to the first cyclone 37 ₁ .

In the first cyclone 37 ₁ , the first discharge pipe 3
The air and water vapor from 6 ₁ are decelerated and discharged to the outside from the exhaust port 41 with the filter 40, and the cushion material b powder is dropped from the discharge port 42 and stored in the first tank 43 ₁ .

If the cushion material b does not drop into the first tank 43 ₁ , it means that the cushion material b has separated from the skin material a. Therefore, if this is confirmed, the operation of the first electric blower 38 ₁ is started. Stop the air cylinder 48
Then, the shutter 45 is opened, that is, the third discharge port 35 ₃ is opened, and the second electric blower 38 ₂ is operated. Then, from the inside of the drum 3 through the first discharge pipe 36 ₂ to the second
An airflow toward the cyclone 37 ₂ is generated and the sieve unit 8
The skin material a fragments remaining inside are carried to the second cyclone 37 ₂ by the air flow. In the second cyclone 37 ₂ , the air from the first exhaust pipe 36 ₂ is decelerated and the filter 4
It is discharged from the exhaust port 41 with 0 to the outside, and the skin material a fragments are dropped from the discharge port 42 and stored in the second tank 43 ₂ .

Since a large amount of skin material a fragments collected in the second tank 43 ₂ often include a relatively large cushion material b fragment that could not pass through the sieve member 9, It is effective to increase the accuracy of sorting the skin material a and the cushion material b by applying the collected material in the tank 43 ₂ to a known wind separator.

FIG. 8 shows another embodiment of the separation / sorting apparatus 1, which is a pair of left and right ring bodies 10a,
10b is rotatably supported by a large number of guide rollers 51 provided on the end plate 6 of the drum 3 and the door 7. A ring gear 52 is formed on the outer circumference of the right ring body 10b, a reverse rotation electric motor 50 is attached to the end plate 6, and a drive gear 53 fixed to a rotor shaft 50a thereof meshes with the ring gear 52. Since other configurations are the same as those in the previous embodiment, in the figure, the portions corresponding to those in the above embodiment are designated by the same reference numerals, and the description thereof will be omitted.

According to this embodiment, when the rotating plate 20 and the rubbing member 21 are rotated in the forward direction R by the electric motor 4, the reverse rotation electric motor 50 moves the sieve unit 8 in the reverse direction R.
By rotating in the direction, the relative rotation speed of the sieve unit 8 and the rubbing member 21 can be increased.

The present invention is not limited to the above embodiments, and various design changes can be made without departing from the scope of the invention. For example, the facing surface 21a of the rubbing member 21 with respect to the sieve member 9 may be formed as a rough surface or an uneven surface to enhance the rubbing effect of the stack A fragment group on the sieve member 9.

[0039]

As described above, according to the first feature of the present invention, a group of fragments of the synthetic resin laminate is rubbed by the rubbing member that rotates together with the rotating plate, and is generated in the drum by the rotation of the rubbing member. The shards were rubbed against the sieve member with a rotating air flow, and a constant gap was provided between the sieving member and the rubbing member. The material is crushed, peeled off, passed through the sieve member and received in the separation chamber,
As a result, the synthetic resin material laminate can be automatically and efficiently separated and separated into the skin material and the cushion material, which can greatly contribute to the cost reduction of the waste material reuse.

Further, according to the second aspect of the present invention, since an edge protruding inward in the radial direction of the sieve member is formed on the peripheral edge of the mesh of the sieve member, the edge has a scratching effect on each fragment. The crushing and peeling of the cushion material can be performed more effectively.

Further, according to the third feature of the present invention, the separation chamber is connected to a first discharge pipe for taking out the cushioning material powder received therein to the outside, and is retained therein in the sieve member. Since the second discharge pipe for taking out the skin debris to the outside is connected, the skin material and the cushion material separated and separated in the drum can be separately taken out by the first and second discharge pipes, respectively, and the separation and extraction work can be performed. It will be easy.

[Brief description of drawings]

FIG. 1 is an explanatory diagram of a separation and separation process of a synthetic resin material laminate.

FIG. 2 is an overall view of a separation / separation device for a synthetic resin material laminate and its accessories.

FIG. 3 is a vertical sectional side view of the separation / sorting device.

FIG. 4 is a sectional view taken along line 4-4 of FIG.

5 is an enlarged view of part 5 of FIG.

FIG. 6 is a partial perspective view of a sieve member.

FIG. 7 is a side view of the tip of the rubbing member.

FIG. 8 is a longitudinal sectional view corresponding to FIG. 3, showing another embodiment of the separation and classification device.

[Explanation of symbols]

A ... Synthetic resin material laminate a ... Skin material b ... Cushion material 1 ... Separation / sorting device 3 ... Drum 4 ... Drive means (electric motor) 9 ..Screen member 9a ... mesh 9b ... edge 17 ... separation chamber 20 ... rotating plate 21 ... rubbing member 36 ₁・ first discharge pipe 36 ₂・ second discharge pipe

Continuation of front page (56) Reference JP-A-7-276364 (JP, A) JP-A-10-278043 (JP, A) JP-A-8-252474 (JP, A) JP-A-3-180 (JP , A) Actually open 6-57435 (JP, U) Actually open 61-37246 (JP, U) (58) Fields investigated (Int.Cl. ⁷ , DB name) B29B 17/00-17/02 B02C 18/00-18/44 B02C 19/00-25/00

Claims (3)

(57) [Claims] 1. A synthetic resin material laminate (A) which is bonded to each other.
A synthetic resin material laminate separating / separating device for separating and separating a synthetic resin skin material (a) and a synthetic resin cushion material (b) constituting a drum (3) and the drum (3). An annular sieve member (9) which is disposed inside to define a separation chamber (17) between it and an inner peripheral surface thereof, and is disposed inside this sieve member (9) and concentric therewith. Rotating plate (20)
And the sieve member (9) fixed to the rotary plate (20).
A rubbed member (21) facing each other with a constant gap (25) on its inner peripheral surface and a drive means (4) for rotationally driving the rotating plate (20) are provided, and the sieving member (9) is provided inside By rubbing the crushed pieces of the synthetic resin material laminate (A) into the sieve member (9) with the rubbing member (21), the sieve member (b) is crushed to crush the sieve member (b). 9) The separation / separation device for a synthetic resin material laminate, characterized in that the separation / separation chamber (17) is made to pass therethrough. 2. The edge member (9b) according to claim 1, wherein an edge (9b) protruding inward in the radial direction of the sieve member (9) is formed on the periphery of the mesh (9a) of the sieve member (9). A device for separating and separating a synthetic resin material laminate. 3. The separation chamber (17) according to claim 1, wherein the separation chamber (17) is connected to a first discharge pipe (36 ₁ ) for taking out the cushion material (b) received therein, A separating / separating apparatus for a synthetic resin material laminate, characterized in that a second discharge pipe (36 ₂ ) for extracting the skin (a) remaining therein is connected to the inside of the sieve member (9).