JP4514986B2 - Laminated glass separation and recovery equipment - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an apparatus for separating and collecting laminated glass used for a windshield of an automobile.
[0002]
[Prior art]
Laminated glass is used as a windshield for automobiles and window glass for buildings. This laminated glass is obtained by joining and integrating an outer glass (for example, tempered glass) and an inner glass (for example, ultraviolet absorbing glass) with an intermediate film (for example, polyvinyl butyral).
[0003]
When considering the effective use of resources at the time of scrap cars, it is necessary to separate and recover glass (outer glass and inner glass) and resin (intermediate film). However, even if the glass is crushed finely, the intermediate film cannot be crushed, and fine glass pieces remain firmly joined to the intermediate film and cannot be easily separated.
[0004]
In view of this, Japanese Patent Application Laid-Open No. 7-17747 proposes a technique for separation utilizing the property of polyvinyl butyral, that is, the property that when water comes into contact, it absorbs water and swells and bonding strength becomes extremely weak.
[0005]
In JP-A-7-17747, after crushed into a laminated glass, the crushed laminated glass is put into a reticulated body and immersed in water. After a predetermined time, the laminated glass is pulled up from the water together with the reticulated body. The mesh body is vibrated up and down with the one side of the laminated glass facing down, the glass piece adhering to the lower surface is dropped into the collection box, and then the other side of the laminated glass is In the same manner as described above, the mesh body is vibrated up and down, and the glass piece adhering to the lower surface is dropped into the collection box.
[0006]
[Problems to be solved by the invention]
As disclosed in the prior art described above, glass pieces adhering to the swollen interlayer film can be easily separated by vibrating the laminated glass. However, the above prior art has not proposed a specific structure on how to vibrate the laminated glass and how to invert the net.
If the laminated glass is vibrated ignoring the previous and subsequent steps, the efficiency of separation and recovery may be worsened. Moreover, it is inefficient if the laminated glass is inverted manually.
[0007]
Furthermore, laminated glass often has different compositions, properties, colors, etc. between the outer glass and the inner glass. In such a case, if the outer glass and the inner glass can be separated and collected separately, recycling becomes easier. However, in the above-described prior art, only the collection in one collection box is shown, and the outer glass and the inner glass cannot be automatically separated.
[0008]
[Means for Solving the Problems]
In order to solve the above-mentioned problems, the laminated glass separation and recovery device according to the present invention includes a first conveyance path and a second conveyance path for conveying crushed laminated glass, and these conveyance paths include crushed laminated glass. The surface to be placed is made of a mesh material from which a glass piece can fall, and the first transport path and the second transport path can be vibrated by a separately installed vibration device, and further The conveyance path and the second conveyance path are inclined in directions opposite to each other, and the end portion of the first conveyance path faces the second conveyance path.
[0009]
If the first transport path and the second transport path are supported on a base via a spring, the transport path can be easily vibrated without being directly transmitted to the base.
[0010]
In order to separate and recover the intermediate film and the glass piece by the separation and recovery apparatus having the above configuration, first, the laminated glass joined through the intermediate film is crushed, and then the intermediate film is hydrated and swollen. The glass piece adhering to the lower surface of the intermediate film is recovered through the mesh material by vibrating the conveyance path while conveying the swollen intermediate film on which the broken pieces of material are adhered on the first conveyance path made of the mesh material. Then, the swollen intermediate film with glass fragments adhering to the second conveyance path is transferred by reversing the front and back, and the conveyance path is vibrated while being conveyed on the second conveyance path. The adhering glass piece is collected through the mesh material.
[0011]
DETAILED DESCRIPTION OF THE INVENTION
Embodiments of the present invention will be described below with reference to the accompanying drawings. FIG. 1 is an overall view of a separation and recovery system to which a laminated glass separation and recovery apparatus according to the present invention is applied. The separation and recovery system 1 continuously arranges a water tank 20 on the downstream side of a crushing apparatus 10 for crushing a laminated glass G. The separation / recovery device 30 is disposed downstream of the water tank 20. A stocker 2 is disposed in the vicinity of the crushing device 10.
[0012]
In the crushing device 10, a pair of crushing rollers 12, 12 are arranged at the end of the feed roller 11. The crushing roller 12 has a large number of spike-like projections 13 planted in a staggered pattern on the surface, and crushes the laminated glass G fed between the crushing rollers 12 and 12 finely. In addition, since the intermediate film P is not crushed, the laminated glass W is in a state where a large number of pieces of crushed glass are attached to the surface of the intermediate film P.
[0013]
Further, since a part of the glass piece adhering to the lower surface of the intermediate film P is separated by gravity, the glass piece is collected in the box 15 disposed at the bottom of the crushing device via the duct-shaped guide 14. ing.
[0014]
A number of pallets 21 are arranged in the water tank 20 adjacent to the crushing apparatus 10, and these pallets 21 circulate in the water tank 20 by driving a chain 22. Normal temperature water or warm water is supplied into the water tank 20. In the case of room temperature water (0 to 20 ° C.), it is necessary to immerse the laminated glass W in the water tank for 24 hours, but in the case of warm water (80 ° C.), the intermediate film swells sufficiently in about 1 hour. . Therefore, the moving speed of the pallet 21 is adjusted according to the temperature of water.
In addition, although the water tank was mentioned in the example of illustration, a steam chamber or a mist chamber can also be used.
[0015]
On the other hand, as shown in FIG. 2, the separation and recovery device 30 disposed adjacent to the downstream side of the water tank 20 includes a first transport path 31 and a second transport path 32, and the first transport path 31 is The downstream side is supported on the base 33 via a spring 34 so that the downstream side is slightly inclined downward, the end faces the second conveyance path 32, and the first conveyance path 31 is connected to the vibration device 35. The conveying surface is made of a mesh material 36 such as a wire mesh.
[0016]
A recovery box 37 is disposed below the first transport path 31, and a duct-shaped guide 38 that guides the glass piece attached to one surface side of the intermediate film to the recovery box 37 is connected to the first transport path 31. It is arranged between the collection box 37.
[0017]
The second conveyance path 32 is supported by a base 39 via a spring so as to be inclined in the opposite direction to the first conveyance path 31, and the inclination angle is tighter than that of the first conveyance path 31. ing. The transport surface of the second transport path 32 is also composed of a mesh material 40 such as a wire mesh, and is connected to the vibration device 41.
[0018]
A recovery box 42 for receiving a glass piece adhering to the other surface of the intermediate film is disposed below the second transfer path 32, and the lower end of the second transfer path 32 faces the recovery box 43 for the intermediate film. It is out.
[0019]
In the above, the laminated glass W sent out from the water tank 20 onto the mesh material 36 of the first conveyance path 31 gradually moves to the downstream side by vibration and remains on the lower surface of the intermediate film P as shown in FIG. The glass piece is shaken down and collected in the box 37 via the guide 38.
[0020]
Further, when moving from the first conveyance path 31 to the second conveyance path 32, the laminated glass W is reversed, and the glass piece attached to the surface that is reversed and becomes the lower surface passes through the mesh material 40 into the box 42. Collected. Further, the intermediate film P from which the glass piece has been peeled is collected in the box 43.
[0021]
【The invention's effect】
As described above, according to the present invention, after the laminated glass is crushed, the intermediate film is swollen, and vibration is applied to separate and recover the glass from the intermediate film. Can be peeled off.
[0022]
Further, according to the present invention, a special driving force for conveyance is not required, and the laminated glass is automatically moved because the conveyance path is inclined by applying vibration to the crushed laminated glass. . Further, since the laminated glass is inverted by itself when moving from the first conveyance path to the second conveyance path, no special device is required. Therefore, it is possible to provide a compact device with high separation and recovery efficiency.
[Brief description of the drawings]
FIG. 1 is an overall view of a separation and recovery system for laminated glass according to the present invention. FIG. 2 is an overall perspective view of a separation and recovery apparatus. FIG.
DESCRIPTION OF SYMBOLS 1 ... Separation | collection collection system, 2 ... Stocker, 10 ... Crushing device, 11 ... Feed roller, 12 ... Crushing roller, 13 ... Protrusion, 14 ... Guide, 15 ... Collection box, 20 ... Water tank, 21 ... Pallet, 22 ... Chain, DESCRIPTION OF SYMBOLS 30 ... Separation | collection collection apparatus, 31 ... 1st conveyance path, 32 ... 2nd conveyance path, 33 ... Base, 34 ... Spring, 35 ... Excitation apparatus, 36 ... Mesh material, 37 ... Collection box, 38 ... Guide , 39 ... Base, 40 ... Mesh material, 41 ... Excitation device, 42, 43 ... Collection box.

Claims (1)

In a laminated glass separation and recovery device that separates and recovers the crushed laminated glass into a glass piece and an intermediate film, the separation and recovery device includes a first conveyance path and a second conveyance path for conveying the crushed laminated glass, these transport path constitutes a surface laminated glass was crushed is placed in mesh glass pieces may fall, also the first transport path and the second conveying path of at separately installed the vibrator The combination is characterized in that the first conveyance path and the second conveyance path are inclined in directions opposite to each other, and a terminal portion of the first conveyance path faces the second conveyance path. Glass separation and recovery equipment.

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