JPH10278042A - Separator for synthetic resin material laminate - Google Patents

Abstract

PROBLEM TO BE SOLVED: To raise separation effect of synthetic resin material laminates while a separator is made to withstand a use for a long time by restraining excessive rise of temperature in a drum in the separator wherein interlayers between laminates are separated by passing the synthetic resin material laminates between a fixed bar and a movable bar which are relatively rotated in the drum. SOLUTION: A first air ejector 22, and a second air ejector 22 are in series interposed in a circulation route 21 communicated between an outer peripheral part and a central part in a drum. An intensive circulating air flow is generated between the drum 3 and the circulation route 21 with high pressure functioning air jetted into the circulation route 21 from both air ejectors 22, 22. Synthetic resin material laminates are repetitively passed between a fixed bar 12 group and a movable bar 14 group which are relatively rotated by putting the laminates on the circulating air flow. At the same time, an inside of the drum 3 is attempted to be cooled with the abovementioned circulation flow.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method of manufacturing a synthetic resin laminate, which is used as an interior material of an automobile or the like and is made by joining a synthetic resin skin material and a synthetic resin cushion material. Used to separate between materials,
In particular, the present invention relates to a separation device for a synthetic resin material laminate, particularly, a fixed drum, a plurality of fixed bars projecting so as to be arranged on a plurality of concentric circles on one side wall inner surface of the drum, and facing the one side wall inside the drum. A rotating plate driven and rotated by a power source, and a number of fixed bars projecting from the rotating plate and arranged alternately in the radial direction of the drum. The present invention relates to an improvement comprising a plurality of rotating movable bars, wherein a laminate of synthetic resin materials is passed between a fixed bar and a movable bar which rotate relatively to separate the laminated materials.

[0002]

2. Description of the Related Art A separation apparatus for such a synthetic resin material laminate is as follows.
For example, it is already known as disclosed in Japanese Patent Application Laid-Open No. 7-164444.

[0003]

When a synthetic resin material laminate is separated by such a separation device, a long time separation process is required depending on the kind of the laminate. However, if the separating device is operated for a long time, the temperature inside the drum is excessively increased due to the frictional heat between each bar and the laminate, causing a disadvantage that the durability of the device is impaired.

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and has an object to provide an apparatus for separating a synthetic resin material laminate capable of withstanding long-term operation and enhancing the effect of separating the synthetic resin material laminate. The purpose is to provide.

[0005]

In order to achieve the above object, the present invention provides a fixed drum and a plurality of fixed bars projecting from a plurality of concentric circles on the inner surface of one side wall of the drum. A rotating plate that is disposed in the drum so as to face the one side wall and is driven to rotate by a power source; and a number of fixed bars and a plurality of fixed bars that are protruded from the rotating plate and are alternately arranged in the radial direction of the drum. Synthetic resin comprising a large number of fixed bars and a number of movable bars that rotate relative to each other with rotation, and a synthetic resin material laminate is passed between the relatively rotating fixed bar and the movable bar to separate the laminated materials. A first air ejector for generating an air flow from the outer peripheral portion to the central portion of the drum in the circulating passage; Connect the second air ejector in series And Kai裝, characterized in that to connect the discharge pipe via a switching valve to the circulation path between the two air ejector.

According to this feature, the two-stage acceleration of the airflow by the operation of the first and second air ejectors causes a strong circulation of air between the circulation path and the drum. Moreover,
A large amount of working air injected from the first and second air ejectors into the circulation path, that is, fresh air, is always added to the circulation airflow, so that the inside of the drum can be cooled effectively.

In addition, the synthetic resin material also smoothly circulates along with the circulating air flow, and the number of times that the synthetic resin material passes between the fixed bar and the movable bar from the center to the outer periphery of the drum increases. The effect can be enhanced.

Further, when discharging the laminated material after the separation, if the discharge pipe is connected to the circulation path by the switching valve, an air flow which flows from the drum to the discharge pipe is generated by the operation of the first air ejector, whereby the laminated material in the drum is generated. Is discharged to the discharge pipe. On the other hand, the operation of the second air ejector generates an airflow flowing from the circulation path to the drum, whereby the laminated material in the circulation path is carried into the drum and is less likely to remain.

[0009]

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

First, in FIG. 1, a synthetic resin material laminate A as an interior material of an automobile which has been scrapped is made of, for example, PVC or AB.
Skin material a composed of S, PP (polypropylene), polyurethane foam, PP foam, PE (polyethylene)
It is made by bonding or fusing a cushion material b made of a foam or the like, and before the separation between the two materials, the laminate A is subjected to a crushing machine to countless 3 to 6 mm square innumerable laminate A fragments. obtain. Then, these laminate A fragments are applied to the separation device 1 of the present invention, and separated into the skin material a fragments and the cushion material b powder, and are separated.

3 to 5, a machine drum 2 of a separation apparatus 1 of the present invention has a cylindrical drum 3 having a horizontal axis.
And an electric motor 4 having a rotor shaft 4a parallel to the axis.
And are attached. The drum 3 includes a drum body 3a including a cylinder 5 and an end plate 6 joined to one end thereof, and a lid 3b joined to the other end of the cylinder 5 so as to be openable and closable,
The drum main body 3a is fixed to the machine base 2.

As shown in FIGS. 4, 5 and 6, a pair of upper and lower sliding bearings 7 are provided on one outer periphery of the drum main body 3a in parallel with the axis of the drum 3, and a connecting shaft 8 is defined on these. Is slidably supported with a stroke L of. On the other hand, a pair of upper and lower hinge arms 9 are formed on the lid 3b so as to correspond to the pair of connection shafts 8, respectively.
And the connection shaft 8 are connected via the hinge pin 10. A plurality of clamps 11 (see FIG. 7) for fixing the closed state of the lid 3b are provided between the cylinder 5 and the lid 3b.

Referring again to FIGS. 3 and 5, a large number of fixed bars 12 project from the inner surface of the lid 3b so as to be arranged on a large number of concentric circles. In the drum 3, an end plate 6 is provided.
The rotating plate 13 is disposed adjacent to the rotating plate 13.
A large number of movable bars 14 are alternately arranged in the radial direction of the plurality of fixed bars 12 and the drum 3 so as to protrude. On the outer peripheral portion of the rotating plate 13, one or more scrapers 15 close to the inner peripheral surface of the cylinder 5 are fixed.

A rotating shaft 16 supporting the rotating plate 13 passes through the end plate 6 in an airtight manner and is supported by a bearing 17 on the machine base 2.
The rotating shaft 16 is connected to a rotor shaft 4 a of the electric motor 4 via a belt transmission 18. Therefore, the rotating plate 13 can be rotated by the operation of the electric motor 4. According to the rotation, the movable bar 14 and the scraper 15 can be relatively rotated with respect to the fixed bar 12.

The lid 3b has an inflow port 19 opening at an outer peripheral portion (preferably a lower portion) and a central portion in the drum 3.
And an outlet 20, between which a circulation path 21 is connected. This circulation passage 21, the outlet port 20 the first air ejector 22 ₁ and the second air ejector 22 ₂ to rise to the air flow toward the inlet port 19 is Kai裝in series. At this time, the first air ejector 22 ₁ is connected to the outlet 20.
In the vicinity of, and the second air ejector 22 ₂ inlet 19
Are arranged in the vicinity of.

As shown in FIG. 8, each air ejector 22
_1, 22 ₂ includes an inlet pipe 24, the diffuser tube 25 which is connected to the inlet pipe 24 from the downstream side of the circulation path 21 which,
And a nozzle ring 26 inserted between them. An annular passage 27 and an annular nozzle 28 connected thereto are defined between the diffuser tube 25 and the nozzle ring 26. The annular passage 27 is connected to a high-pressure air supply source 29 such as a compressor, and the annular nozzle 28 is connected to the diffuser tube. 2
It is directed to 5 side. Therefore, the high pressure air supply 2
9 is supplied to the annular passage 27 through the annular nozzle 2.
8, the pressure energy of the air is converted into velocity energy in the diffuser tube 25, and a high-speed air flow is generated in the diffuser tube 25. Due to the generated negative pressure, air flows into the inlet pipe 24 from the upstream side. As a result, an airflow is generated in the circulation path 21 from the outlet 20 to the inlet 19.

A hopper 30 is connected to the circulation path 21 through a duct 31 in close proximity to the inflow port 19, and the duct 31 is provided with an on-off valve 32 for opening and closing the hopper 30 and the circulation path 21. .

Referring to FIGS. 2 to 5, the circuit 21
Are the first and second air ejectors 22 ₁, 22_TwoAmong
First discharge pipe 23₁Is connected, and the first discharge
Tube 23 ₁To the circulation path 21 upstream therefrom,
First discharge pipe 23₁Switching valve 34 (see FIG. 4)
) Is provided. This switching valve 34 is an air cylinder 35
Is operated by

The first downstream end of the discharge pipe 23 ₁ is connected to the first cyclone 37 _1. The first cyclone 37 ₁ has an exhaust port 39 provided with a filter 38 on the upper part, and a discharge port 40 on the lower part.
It has a first tank 41 ₁ is placed beneath the outlet 40.

At the lowermost part of the cylinder 5 of the drum body 3a, a discharge port 43 having a wire mesh sieve 42 is provided. The outlet 43, the second cyclone 3 through the second exhaust pipe 23 ₂
Is connected to the 7 _2, the ₂ second discharge pipe 23, the electric blower 44 is provided to generate an air flow from the discharge port 43 to the second cyclone 37 ₂ side. The second cyclone 37 ₂ is
Outlet 39 having a filter 38 at the top as well as the cyclone 37 ₁ has an outlet 40 at the bottom, the outlet 40
The second tank 41 ₂ is installed beneath the.

At the uppermost part of the cylinder 5 of the drum body 3a, an exhaust port 46 provided with a wire mesh sieve 45 is provided, and an exhaust pipe 47 connected to the exhaust port 46 is connected to the second exhaust pipe 2.
3 is connected a _second in the middle portion.

Next, the operation of this embodiment will be described.

In using the separation apparatus 1 of the present invention,
First, the operating of the electric motor 4 rotates the rotary plate 13, the pressure supply air first and second air ejector 22 _1, 22 ₂ in a state of closing the first exhaust pipe 23 ₁ through switching valve 34 And the electric blower 44 is also operated. When the rotating plate 13 rotates, relative rotation occurs between the fixed bar 12 group and the movable bar 14 group. According to the operation of the first and second air ejectors 22 ₁ and 22 ₂ ,
An airflow from the outer peripheral portion of the drum 3 toward the central portion is generated in the circulation path 21, and in particular, the first and second air ejectors 22 ₁ , 2 2
The 2 _second series arrangement, since the air flow is accelerated in two steps, a strong circulating flow of air occurs between the circulation path 21 and the drum 3. Further, according to the operation of the electric blower 44, the air in the drum 3 is sucked by the electric blower 44,
3 ₂ second cyclone 3 from the discharge port 43 and the exhaust port 39 to the
Air flow is generated toward the 7 _2.

In the operating state of the separating apparatus 1, when an appropriate amount of the laminate A fragments is thrown from the hopper 30 into the center of the drum 3, they are passed between the drum 3 and the circulation path 21 along with the circulating air flow. At the lower part of the drum 3, the fragments of the skin material a are scooped up by the rotating scraper 15, so that the stagnation of the fragments of the skin material a is avoided. Therefore, the fragments of the skin material a repeatedly pass between the group of fixed bars 12 and the group of movable bars 14 that rotate relative to each other from the center to the outer periphery of the drum 3, and collide with a large number of fixed and movable bars 12 and 14. As described above, the skin material a fragments and the cushion material b powder are effectively separated by the friction and friction.

[0025] Then, the cushion member b powder passed through the sieve 42, riding on the air flow occurring in the ₂ second discharge pipe 23 is conveyed second cyclone 37 _2, in thisゝair is decelerated The air discharged from the exhaust port 39 with the filter 38 is discharged to the outside.
It is stored in the tank 41 _2.

[0026] Thus it sure to allow around the cushion member b powder disappears from the drum 3 and the circulation path 21, and then switches the switching valve 34 connects the first air ejector 22 ₁ immediately after the circulation path 21 to the first discharge pipe 23 ₁ I do. Then, a high-speed air stream generated by the first air ejector 22 ₁ first
The air flows into the discharge pipe 23 ₁ toward the first cyclone 37 _1, and the fragments of the skin material a in the drum 3 are carried to the first cyclone 37 ₁ by the air flow. The air flow generated by the second air ejector 22 _2, since carries the skin material a debris in the circulation path 21 into the drum 3, the skin material a debris circulation path 21 hardly remains.

In the first cyclone 37 ₁ , the first discharge pipe 2
Air from 3 ₁ is released at a reduced speed to the outside from the exhaust port 39 with filter 38, the skin material a debris is stored in the first tank 41 ₁ to fall from the discharge port 40.

Thereafter, the same operation is repeated.

By the way, a large amount of heat is generated in the drum 3 due to friction at the time of separation of the laminate A fragments, but the first and second air ejectors 22 ₁ and 22 ₂ act to operate between the drum 3 and the circulation path 21. In addition, a strong circulating air flow as described above is generated, and the working air (fresh air) supplied to each of the air ejectors 22 ₁ and 22 ₂ from the high-pressure air supply source 29 is always added to the circulating air flow. , The air in the drum 3 is successively replaced with fresh air. In addition, drum 3
Hot air rises by being heated by the inner receives the suction effect of the electric blower 44, it is discharged from the exhaust port 46 to the exhaust pipe 47 second discharge pipe 23 ₂ through the excessive temperature of the drum 3 The temperature can be effectively suppressed. At this time, the debris of the laminate A and the debris of the skin material a in the drum 3 are prevented from being unnecessarily discharged to the exhaust pipe 47 by the filter 45. However, the cushion material b soared in the drum 3
Even powder passes through the filter 45, after passing through the exhaust pipe 47, merges with the cushion member b powder from the discharge port 43 in the second exhaust pipe 23 _2, because it is collected in the second tank 41 _2,
No problem.

For inspection and maintenance of the inside of the drum 3, a lid 3b
Is released, the clamp 11 is first removed, and the connecting shaft 8 is pulled out of the sliding bearing 7 by a predetermined stroke L, and the lid 3b is pulled away from the drum main body 3a without tilting, so that the fixing bar 12 is removed. Groups moveable bar 14
When the lid 3b is completely pulled out of the group and then rotated around the hinge pin 10, the fixed and movable bars 12, 14
The lid 3b can be opened. When the lid 3b is closed, the above operation may be performed in reverse.

The present invention is not limited to the above-described embodiment, and various design changes can be made without departing from the scope of the gist. For example, abolished the second exhaust pipe 23 ₂ is taken out through the skin material a debris and cushioning material b powder first exhaust pipe 23 ₁ in a mixed state, then, it is fractionated them in suitable sorting means Good.

[0032]

As described above, according to the present invention, a circulation path communicating between the outer peripheral portion and the center portion in the drum is provided, and the air flow from the outer peripheral portion to the center portion in the drum is provided in this circulation path. The first air ejector and the second air ejector to be generated are interposed in series, and a discharge pipe is connected to the circulation path between the two air ejectors via a switching valve, so that the two stages by the operation of the first and second ejectors are provided. A strong circulating air flow is generated between the circulation path and the drum due to the acceleration of the air flow, and the working air (fresh air) injected from the first and second air ejectors into the circulation path is constantly added, so that the drum is increased. The inside can be effectively cooled, the separation device can be operated for a long time, and its life can be extended.

The synthetic resin material laminate also smoothly circulates due to the strong circulating air flow, and the number of times that the laminate passes between the fixed bar and the movable bar from the center to the outer periphery of the drum increases. Can also be enhanced.

Further, when discharging the laminated material after the separation, if the discharge pipe is connected to the circulation path by the switching valve, the first and second air ejectors cooperate to form the laminated material in the circulation path without cooperating with the drum. Can also be reliably discharged to the discharge pipe.

[Brief description of the drawings]

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

FIG. 2 is an overall view of the separation apparatus of the present invention and its accessories.

FIG. 3 is a longitudinal sectional side view of a main part of the separation device.

FIG. 4 is a plan view of the separation device.

FIG. 5 is a sectional view taken along line 5-5 in FIG. 3;

FIG. 6 is a sectional view taken along line 6-6 in FIG. 4;

FIG. 7 is a sectional view taken along line 7-7 of FIG. 5;

8 is a sectional view taken along line 8-8 in FIG. 3;

[Explanation of symbols]

 A ··· synthetic resin material laminate · · · · skin material as a laminate material b · · · · cushion material as a laminate material 3 · · · drum 3a · · · lid as one side wall 4 · ... Electric motor as power source 12 ... Fixed bar 13 ... Rotating plate 14 ... Movable bar 21 ... Circulation path 33 ... Drain pipe 34 ... Switching valve

──────────────────────────────────────────────────の Continued on the front page (51) Int.Cl. ⁶ Identification code FI // B29K 105: 26

Claims (1)

[Claims] 1. A fixed drum (3), a plurality of fixed bars (12) protruding from the inner surface of one side wall (3b) of the drum (3) so as to be arranged in a plurality of concentric circles, and a drum (3). ), A rotating plate (13) arranged opposite to the side wall (3b) and driven to rotate by a power source (4), and a number of fixed bars (12) projecting from the rotating plate (13). )
And the drum (3) are alternately arranged in the radial direction.
3) a plurality of fixed bars (12) and a plurality of movable bars (14) that rotate relatively with the rotation of 3), and a synthetic resin material laminate ( A) to separate the laminates through
In the apparatus for separating a synthetic resin material laminate, a circulation path (21) communicating between an outer peripheral part and a center part in a drum (3) is provided, and the drum (3)
First to generate an air flow from the outer periphery to the center
Air ejector (22 ₁₎ and a second air ejector (2
2 ₂₎ Kai裝in series, both air ejector (22 _1, 2
An apparatus for separating synthetic resin material laminates, characterized in that a discharge pipe (33 ₁ ) is connected to a circulation path (21) between 22 ₂ ) via a switching valve (34).