JP7607232B2 - Chunk glass removal device - Google Patents

Description

The present invention relates to a device for removing chunks of broken glass adhered to the surface of a resin sheet.

The use of renewable energy is being promoted as a measure against global warming. One such method is solar power generation, which is becoming popular as a power generation method that leads to the reduction of greenhouse gas emissions. However, some of the solar power generation panels that have been installed so far have reached the end of their useful life and have been discarded, or have been damaged by accidents or stone throwing during construction. In the future, solar power generation panels will be discarded in proportion to the number that have been in use so far (see Non-Patent Document 1). In addition, a large number of solar power generation panels have been damaged due to large-scale natural disasters, which have been increasing in recent years. There is a demand for a peeling device that can separate and recover glass, in particular, so that the solar power generation panels that will be discarded in large quantities in the future can be recycled and resources can be effectively reused.

As shown in FIG. 16, the solar panel 100 described above is composed of a plurality of materials with different physical and chemical properties. It is composed of an aluminum frame 108, glass (referring to cover glass) 104, solar cell 102, wiring material 106, sealing material 105, and back sheet 103 which is a back surface protective material. There are various sizes, for example, 1650 mm in length x 990 mm in width x 35 mm in thickness. In this specification, the solar cell 102, sealing material 105, wiring material 106, sealing material 105, and back sheet 103 which is a back surface protective material other than the cover glass 104 are simply expressed as "resin sheet" 107. When the aluminum frame 108 is removed, the thickness of the glass 105 is 3 to 6 mm, and the thickness corresponding to the resin sheet 107 is about 1 to 2 mm. Of these materials, the glass 104 needs to be separated from the resin sheet 107 in order to be recycled. In this way, the solar panel is constructed so that the solar cell 102 is wrapped on both sides with a sealing material (resin layer) 105, which is also an adhesive, such as EVA (ethylene-vinyl acetate copolymer) resin, and is firmly bonded to the cover glass 104.

One such proposal is Patent Document 1. The glass separation device described in Patent Document 1 proposes separating the cover glass 104 from the resin sheet 107 of a photovoltaic panel. To explain in detail, the cover glass 104, which is integrated with the resin sheet 107 after the aluminum frame 108 has been removed, is crushed by passing it through a pair of crushing roller tubes with angular protrusions evenly protruding from the cylindrical outer periphery. The glass separation device then proposes rotating a cylindrical scraping roller with multiple protruding protrusions evenly spaced axially from the outer periphery of the crushed glass surface facing the support roller, and scraping off glass pieces from the crushed, cracked glass with the convex parts of the scraping roller.

Patent No. 5714741

Journal of Waste Management and Resource Cycles Vol.30 No.6 2019

However, the prior art glass peeling devices had the following problems. That is, in the glass separating device described in Patent Document 1, the solar cell 102 and the back sheet 103 are attached to one side with a sealant 105, and the cover glass 104 is crushed by a pair of crushing rollers and sent, and passes perpendicularly between a pair of support rollers 30 and scraping rollers 40 arranged opposite to each other on a horizontal axis position, so the glass is scraped off in a state where the cracks in the crushed glass are sealed. For this reason, it was difficult to efficiently scrape off the glass by catching the scraping blade in the cracks.
Therefore, it is required to efficiently separate the cover glass 104 that is adhered with a sealing material or the like.

The present invention has been proposed to solve these problems, and aims to provide a device for removing chunks of broken glass that allows the scraping blade to easily hook into the cracks in the broken chunks of cover glass 104, enabling efficient removal and recovery.

In order to achieve the above object, the present inventors have proposed the following device for peeling off a chunk of broken glass as Means 1.
That is, in a panel assembly 101 in which the frame 108 has been removed from the solar power generation panel 100 and a resin sheet 107 and a plate-shaped cover glass 104 are attached to the surface of the resin sheet, the plate-shaped glass portion is cracked into a chunk, and the chunk-shaped broken glass is peeled off from the resin sheet 107.
First, in order to heat the waste having the chunk-cracked broken glass (in the present invention, this refers to, for example, the panel assembly 101 having the chunk-cracked glass) from the glass surface side to the extent that the resin sheet 107 is softened, i.e., the sealing material 105 bonding the resin sheet 107 and the cover glass 104 is softened, a heater is provided facing the glass being conveyed, with a length that covers the entire width of the panel assembly 101. Such heaters are arranged in units of the number of units that can heat the resin sheet 107, depending on the feed speed of the chunk-cracked glass and the resin sheet.
At least one pair of feed rollers and a first pinch roller are provided downstream of the heater, which are arranged to convey the panel assembly 101 by rotational drive while sandwiching it.
Furthermore, the resin sheet surface side can be wrapped around the panel assembly 101 to open up the cracks in the chunk of broken glass, and the feeding direction can be changed, for example, from horizontal to vertical.A cylindrical or cylindrical drive roller that is longer than the width of the panel assembly 101 and rotates powered around an axis is provided.
A cylindrical or cylindrical peeling roller that rotates by power around its axis and has scraping blades protruding intermittently from its entire peripheral surface so as to substantially cover the width of the panel assembly 101 is provided within the range of the winding angle from the winding start point (on the tangent) where the resin sheet 107 of the panel assembly 101 contacts along the rotating outer peripheral surface of the drive roller to the winding end point (on the tangent) where the resin sheet 107 is discharged.
When a peeling roller is pressed against the cracks in the chunk of broken glass wound around the drive roller and rotated at a linear speed faster than that of the drive roller, the scraping blade rotates so as to bite into the cracks and peel off the chunk of glass from the resin sheet 107.
At least a pair of discharge rollers and a second pinch roller are provided downstream to discharge the resin sheet 107 from which the glass chunks have been peeled off and guide it to a recovery tray below.
We have proposed a device for peeling off a chunk of broken glass, which is provided with the above-mentioned components.

According to the first aspect of the present invention, when the resin sheet side of the panel assembly 101 having the cracked glass chunks is guided around a cylindrical drive roller, for example, with a central angle in the range of about 60° to 130°, a force is applied to the cracks in the broken glass chunks on the glass surface opposite the contact surface so as to open them up. When the scraping blade of a peeling roller with an angular cross section is pressed against the glass surface in this state and rotated at a linear speed faster than the linear speed of the drive roller, the scraping blade acts to scratch the corners of the cracks due to the speed difference, and a force is applied to peel the glass chunks from the resin sheet. As a result, the glass broken into chunks begins to be peeled off one after another from the resin sheet surface.

According to the first aspect of the present invention, it is possible to provide a device for removing broken glass chunks that can improve the effect of removing broken glass chunks, efficiently remove the glass chunks, and recover the glass chunks.

(Other means for solving the problem)
As a sub-concept of the above-mentioned means 1, we propose a device for peeling off chunk-shaped broken glass, in which an auxiliary heater is installed upstream near the peeling roller to heat the area from the glass surface side of the chunk-shaped broken glass to the above-mentioned panel assembly 101.

The auxiliary heater proposed in this way may be such that even if the resin sheet 107 is heated to a degree that it softens by the heater arranged in means 1, the heat is released by passing the waste material between the pair of feed rollers and the first pinch roller, which may cause the sealing material 105 to soften again, and the efficiency of scraping off the glass may decrease. For this reason, the auxiliary heater is designed to supplement heat upstream near the peeling portion, which has the effect of enabling scraping off without reducing efficiency. In particular, if the auxiliary heater is installed in a location opposite to the location where the cracks in the chunk of broken glass in the state where the waste material is cracked into a chunk have opened up, that is, the location where the glass is wrapped around the cylindrical drive roller while being in contact with it, heat can easily reach the sealing material 105 directly from the cracked part of the glass, which increases the heating effect of heating the resin sheet 107, making it easier to peel off, and improving the scraping efficiency.

As means 3, which is a subordinate concept of the above-mentioned means 1 and means 2, we have proposed a device for peeling off chunks of broken glass, which is configured to provide a first peeling section consisting of the above-mentioned drive roller and the above-mentioned peeling roller, and a second peeling roller downstream of the peeling roller that scrapes off the glass chunks that remain after being peeled and are in a cracked state, so as to press the waste material toward the drive roller, and to provide a second peeling section consisting of the second peeling roller and the above-mentioned drive roller.

As a variation of this, we have proposed a device for peeling broken glass chunks, which includes the above-mentioned first peeling section, a second drive roller downstream of the first peeling section at a position not in contact with the drive roller, and a second peeling roller that scrapes off the remaining cracked chunks of glass that remain after peeling by pressing it against the above-mentioned waste material that is sent along the second drive roller, with the second drive roller and the second peeling roller forming a second peeling section.

As yet another variation, a device for peeling broken glass in chunks has been proposed in which, in addition to providing the first peeling section described above, a third peeling roller is provided downstream of it in a position not in contact with the drive roller, with a spiral ridge portion (groove blade) provided symmetrically in the center in order to scrape off the remaining cracked chunks of glass that have not been peeled off, and a peeling pan is installed near the outer periphery of the third peeling roller with a gap slightly wider than the thickness of the resin sheet 107 and extended in the axial direction so as to enclose part of the outer periphery of the third peeling roller, with the third peeling roller and the peeling pan forming a second peeling section.

In this way, by providing the second peeling section, even if a glass lump is left behind in the first peeling section, the remaining glass lump can be reliably peeled off by the second peeling section.
Furthermore, in the case of the modified example, when a second drive roller having a smaller diameter compared to the diameter of the first drive roller is provided, the winding curvature of the second drive roller becomes smaller, making it possible to spread even fine particles of the chunk of broken glass, thereby improving the efficiency of the scraping operation.
In particular, when the second peeling section is constituted by the third peeling roller and peeling pan, the wrapping angle and twist lead amount of the peeling pan with respect to the remaining glass lump can be set arbitrarily, so that a peeling force can be applied continuously, thereby ensuring that the remaining glass lump can be peeled off reliably.

As a sub-concept of the above-mentioned means 3, we propose a means 4, which includes a leading edge detection sensor that detects the leading edge of the resin sheet 107 that has passed through the clamping portion between the discharge roller and the second pinch roller, and based on the detection signal, controls the rotation direction and linear speed of the second peeling roller in the second peeling section, for example by reversing the rotation direction, or by controlling the linear speed to be slower than the linear speed of the drive roller in the first peeling section even if the rotation direction is the same, and applies a force in the opposite direction to the conveying direction to the remaining chunks of glass in the second peeling section, thereby applying a peeling force from the opposite direction to the peeling force applied to the chunks of broken glass in the first peeling section.

This is because when the leading edge of the resin sheet 107 passes through the nip between the discharge roller and the second pinch roller, the waste is securely nipped between all the nip between the feed roller and the first pinch roller, the first drive roller and the first peel roller, and the discharge roller and the second pinch roller, so that the waste can be transported stably in the direction of discharge even if a force is applied in the opposite direction to the transport direction in the second peeling section. In other words, the lump-shaped glass block of the waste is subjected to a peeling force in the same direction as the peeling force generated in the first peeling section from its leading edge to the second peeling section, but after the leading edge passes through the nip between the discharge roller and the second pinch roller, it is possible to apply a force in the opposite direction to the transport direction in the second peeling section, so that the peeling effect is further enhanced by applying a peeling force in the opposite direction to the peeling stress once applied.

As a further modification, if the second peeling section is formed by a third peeling roller and a peeling pan, it is not necessarily necessary to provide the aforementioned leading edge detection sensor, and control of the rotation direction and linear speed of the third peeling roller is also unnecessary. As described above, by arbitrarily setting the wrap angle and twist lead amount of the peeling pan for the remaining glass lump, a peeling force can be continuously applied from the leading edge to the trailing edge of the waste in a direction different from the direction of the peeling force applied to the lump-shaped broken glass in the first peeling section (in this embodiment, a direction perpendicular to the direction of the peeling force), so that the remaining glass lump can be peeled off reliably. In addition, glass lump that has been broken once and reduced in height can be peeled off even more reliably because it passes through a gap slightly wider than the thickness of the resin sheet 107.

1 is a perspective view showing a schematic configuration of an entire device according to an embodiment of the present invention. 1 is a perspective view, partially in section, of a peeling roller unit according to a first embodiment of the present invention; FIG. 3 is a schematic side view showing the arrangement of the rollers in FIG. 2 . FIG. 1 is a schematic side view showing an image of the separated state of a broken chunk of broken glass according to a first embodiment of the present invention. 1A is a partial perspective view showing the details of the protrusions of the peeling roller in the first embodiment of the present invention, in which (a) shows a partial perspective view of a peeling roller in which protrusions having a rectangular cross section are intermittently provided in the axial direction like a gear; (b) shows a partial perspective view of a peeling roller in which protrusions having a rectangular cross section are intermittently provided and arranged in offset positions so that adjacent protrusions do not overlap; and (c) shows a partial front view of a peeling roller in which protrusions having a rectangular cross section are protruding and arranged in a spiral shape. 1 is a schematic side view showing the positional relationship between a pair of feed rollers and a first pinch roller, a drive roller, a peeling roller, a pair of discharge rollers and a second pinch roller in a first embodiment of the present invention, and the range in which the peeling roller can be arranged. FIG. 11 is a partially sectional perspective view illustrating a peeling roller unit provided with a second heater unit according to a second embodiment of the present invention. FIG. 13 is a side layout view illustrating a modified example of the peeling roller unit provided with the second heater unit in the second embodiment of the present invention. 13 is a schematic side view showing the positional relationship of each roller with respect to a first drive roller in a peeling roller unit according to a third embodiment of the present invention. FIG. FIG. 11 is a schematic side view showing the positional relationship of each roller arranged in a peeling roller unit having a second peeling section composed of a second drive roller and a second peeling roller in a modified example of the third embodiment of the present invention, with respect to the first drive roller. FIG. 13 is a partial cross-sectional perspective view of a peeling roller unit including a third peeling roller according to a fourth embodiment of the present invention. 12 is a schematic side view showing the positional relationship of each roller disposed with respect to the first drive roller in FIG. 11 . FIG. This is a partial schematic diagram viewed from above showing the peeling method in the third peeling roller, which is the second peeling section, in the fourth embodiment of the present invention, and the state in which the peeled chunks of glass are separated into left and right and transported. 4 is a flowchart showing a rotation control method of the peeling roller in the first embodiment. 13 is a flowchart showing a method for controlling the rotation of a first peeling roller and a second peeling roller in a third embodiment. FIG. 1 is an exploded perspective view showing a configuration of a typical solar power generation panel. 13 is a schematic side view showing the arrangement of rollers of a peeling roller unit that peels off a chunk of waste broken glass having glass bonded to both sides with a resin sheet sandwiched therebetween in a third embodiment of the present invention. FIG.

An embodiment of the present invention will be described with reference to the overall configuration of an apparatus with reference to FIGS.
First, the chunk broken glass peeling device 1 is composed of a base frame 2 made up of multiple angles, a transport conveyor unit 300, a transport table unit 400, a peeling roller unit 200, a collection box 5 for collecting and storing the glass pieces 104c, and a sheet collection table (not shown) below the base frame 2 on which the resin sheet 107 is placed in a folded state after the glass pieces 104c have been peeled off.

The transport conveyor unit 300 has multiple conveyor rollers 302 on a conveyor base 301. The frame 108 is removed from the photovoltaic panel 100, the pre-crushed panel assembly 101 is placed on it, and the panel assembly 101 is fed to the transport table unit 400 one by one, either automatically or manually. The crushed panel assembly 101 described above, in the case of the photovoltaic panel 100, is often cracked into lumps of irregular sizes, such as ovals or circles, measuring about 5 to 30 mm in length and 5 to 30 mm in width. Depending on the type of crack, it may also include pieces of other sizes.

The conveying table unit 400 has a conveying base 401 that is inclined from the conveying conveyor unit 300 to the peeling roller unit 200, on which the panel assemblies 101 are placed one by one, and multiple heater units 410 are provided to heat almost the entire surface of the panel assembly 101 from the cover glass 104 side. Each heater unit 410 is attached to a connecting beam 402 that connects across the upper part of the conveying base 401, and is capable of heating the panel assembly 101 from the cover glass 104 side. In addition, the heater unit 410 has a heater 411 such as an infrared heater such as a ceramic heater, a sheath heater, or a carbon heater inside, and is partially surrounded by a heat reflector 412 to efficiently heat the cover glass 104 side. (See FIG. 2)

Furthermore, at least a pair of feed rollers 23 and a first pinch roller 24 are provided in the rear stage of the multiple heater units 410, which are arranged to convey the panel assembly 101 by rotating while sandwiching it. The feed roller 23 is rotated in the direction of the arrow in FIG. 3 by a driving means such as a driving motor (not shown), and the feed roller 23 and the first pinch roller 24, which are biased against the feed roller 23, sandwich the panel assembly 101 and send it to the peeling roller unit 200. The drive relationship between the feed roller 23 and the first pinch roller 24 is such that either one can be driven, and further, if a rotational driving force is applied to both rollers, the conveying force is further improved. In addition, since the feed roller 23 and the first pinch roller 24 convey the panel assembly 101 heated by the heater unit 410 in the previous stage, it is preferable that they are made of metal or have a surface coated with heat-resistant silicone rubber that has a high conveying force.

The configuration of the peeling roller unit 200 in the first embodiment of the present invention will be described in detail with reference to FIGS.
The peeling roller unit 200 has a structure as shown in Figures 2 to 4. A rotatably supported drive roller 21 and a peeling roller 22 are provided between a left frame 11 (see Figure 1) and a right frame 12, which are connected to each other by a beam 13, so as to face each other with a certain gap P therebetween. This gap P can be adjusted in advance, and is set to be narrower than the thickness Q of the panel assembly 101 (see Figure 4). In addition, a discharge roller 25 and a second pinch roller 26 are provided downstream of the drive roller 21 so as to pull and discharge the panel assembly 101 wound around the drive roller 21.

The gap between the left frame 11 and the right frame 12 is wider than the width of the panel assembly 101 to be transported. A lower guide 61 and an upper guide 62 are extended in the direction of the central axis of the drive roller 21 from the nip (clamping portion) between the pair of feed rollers 23 and the first pinch roller 24 to the clamping portion X between the drive roller 21 and the peeling roller 22 so as to guide the panel assembly 101 to the clamping portion X. The discharge roller 25 is driven to rotate in the direction of the arrow in FIG. 3 by a driving means such as a drive motor (not shown), and the resin sheet 107 from which the glass 104 has been removed is clamped and transported by the second pinch roller 26 biased against the discharge roller 25.

In addition, a resin sheet 107 is sandwiched at a certain interval between the nip portion X of the drive roller 21 and the peeling roller 22 and the nip portion (sandwich portion) of the discharge roller 25 and the second pinch roller 26, and a conveying guide 63 and a conveying guide 64 are extended in the direction of the central axis of the drive roller 21 to guide the resin sheet 107 to the nip portion of the discharge roller 25. The discharge roller 25 and the second pinch roller 26 may be metal rollers, but it is preferable that the rollers are coated with the heat-resistant silicone rubber, urethane rubber, or EPDM (ethylene propylene diene rubber) to improve the conveying force.

The driving roller 21 is driven to rotate in the direction of the arrow in FIG. 3 by a driving means such as a driving motor (not shown), and is adapted to wrap around the back sheet 103 side of the panel assembly 101 so as to abut against it and transport it. In order to improve the transport force of the panel assembly 101, the driving roller 21 is a cylindrical or cylindrical roller with a diameter D, the surface of which is coated with silicone rubber having a high friction coefficient and heat resistance. The axis of the roller extends in the width direction of the panel assembly 101 and is rotatably supported between the left frame 11 and the right frame 12. In other words, when the panel assembly 101 is wrapped around it, it is wrapped around with a radius of curvature R = D/2. (See FIG. 3) The driving roller 21 may be a metal grid roll that has been treated to improve the transport force, such as that described in JP-A-2005-247572, or a roller in which ceramics are sprayed onto the surface of a metal roll and then fired.

On the other hand, the peeling roller 22, which is arranged to face the driving roller 21 with a certain distance P between them, is rotated in the direction of the arrow in FIG. 3 by a driving means such as a driving motor (not shown) provided separately from the driving motor of the driving roller 21. It is a metal roller made of a cylindrical or cylindrical steel material, etc., which has convex protrusions at certain intervals on its outer periphery and extends in the axial direction to approximately the same length as the driving roller 21. The shape of the convex protrusions on the outer periphery is, for example, as shown in FIG. 5(a), a convex protrusion 22a extending in the axial direction like a rod forms a scraping blade, and a front blade tip 22c and a rear blade tip 22e are provided on both sides of the tip. FIG. 5(b) shows an example of a protrusion of another peeling roller 32, in which multiple protrusions (scraping blades) 32a are divided and arranged alternately in the axial direction, and the spaces between them are separated by recesses 32b. For this reason, the protrusions 32a are independently erected, and the front blade tip 32c, the rear blade tip 32e, and the side end 32d are formed. Figure 5(c) shows another example of the protrusions of the peeling roller 42, which is wound around the shaft of the peeling roller 22 in Figure 5(a) and has a spiral groove of the recess 42b, and the protrusion (scraping blade) 42a is independently erected, and the protrusion 42a is formed with a front blade tip 42c, a rear blade tip 42e, and a side end 42d. The peeling roller 42 has the advantage of being relatively easy to manufacture compared to the peeling roller 32.

The glass pieces 104c (see Figure 4) peeled off from the panel assembly 101 by the peeling roller 22 are collected along the collection pan 51 provided near the clamping section X and are accumulated in the space 5a of the collection box 5.

Next, the positional relationship between the rollers, particularly the range of possible positions of the nip portion X between the drive roller 21 and the peeling roller 22, will be described with reference to FIG.
When the panel winding angle θ4 is from the entry point E where the panel assembly 101 enters the drive roller 21 to the separation point F where the resin sheet 107 separates from the drive roller 21, the possible position of the clamping part X is between the position X1 and the position X2 in FIG. 6 (the position where the peeling roller 22 is indicated by a broken line in the figure). That is, the clamping part X may be located anywhere within the range angle θ3 between the position X1 and the position X2 between the position X1 where the panel assembly 101 is wound by the winding angle θ1 from the entry point E and the position X2 where the panel assembly 101 is returned by the winding angle θ2 from the separation point F. For example, if θ4 is 120°, θ1=10°, and θ2=0°, the range angle θ3 is 110°. In the present invention, since the panel assembly 101 is wound around the drive roller 21 and then the lump-shaped glass lump is peeled off, the condition of θ1≧10° and θ2≧0° is desirable. Furthermore, it is preferable that θ1≧30°.

The operation of the present invention will now be described. First, the transport path and transport of the panel assembly 101 will be described with reference to FIGS.
When the feed roller 23 rotates, the leading end of the panel assembly 101 sandwiched between the feed roller 23 and the first pinch roller 24 is guided by the lower guide 61 and the upper guide 62 to the entry point E toward the drive roller 21. After that, the panel assembly 101 can be bent along the inner surface 62a of the upper guide 62 so that the cracks in the glass open up because the cover glass 104 is broken into chunks, and is wrapped around the rotating drive roller 21 and the peeling roller 22 which also rotates so that the cracks gradually open up, and is guided to the nipping portion X between the drive roller 21 and the peeling roller 22 while the back sheet 103 side is wrapped around the drive roller 21. Furthermore, while being sandwiched between the drive roller 21 and the peeling roller 22, the cover glass 104 broken into chunks is peeled off from the panel assembly 101 at the nipping portion X (the peeling action will be described later). The remaining resin sheet 107 is also subjected to the conveying forces of the drive roller 21 and the peeling roller 22, is guided by the conveying guides 63 and 64, is separated from the drive roller 21 at a separation point F, and is discharged by passing through the nip between the rotating discharge roller 25 and the second pinch roller 26. After passing through, the resin sheet 107 is placed on a sheet recovery table (not shown) in a folded manner.

The setting relationship between the conveying speed of the panel assembly 101 and the peripheral speed (same as the linear speed in the tangential direction) due to the rotation of each roller will be described with reference to FIG.
The feed roller 23 rotates in the direction of the arrow in the figure at a peripheral speed (linear speed in the tangential direction) of the reference peripheral speed V0. The panel assembly 101 sandwiched between the first pinch rollers 24 is naturally transported at the linear speed V0. The drive roller 21 also rotates at a peripheral speed (linear speed in the tangential direction) of the reference peripheral speed V0 so as to prevent the panel assembly 101 from slackening. Similarly, the discharge roller 25 also rotates at a peripheral speed (linear speed in the tangential direction) of the reference peripheral speed V0.

Meanwhile, the peeling roller 22 rotates at a peripheral speed (linear speed in the tangential direction) V1 different from the reference peripheral speed V0 while sandwiching the panel assembly 101 with the driving roller 21. This speed relationship is set to V0<V1. That is, the peeling roller 22 exerts a force in the direction of pushing out the glass 104 due to the force caused by the speed difference of "V1-V0". Here, the feed roller 23, driving roller 21, and discharge roller 25 all rotate at the reference peripheral speed V0, but as explained in the above configuration, they may be driven by separate driving motors (not shown), or may be driven by one driving motor using a driving transmission means. Furthermore, the driving transmission means may include an electromagnetic clutch or the like to control the connection/disconnection of the rotation of each roller. If the peeling roller peripheral speed V1 can be set, the peeling roller 22 can also be driven by the above-mentioned single driving motor, but when performing the rotation control described later, it is necessary to use another independent driving motor.

The operation of peeling off the block of glass 104 from the panel assembly 101 will be described with reference to FIGS.
First, the panel assembly 101 is heated from the glass 104 side by the heater units 410 in the conveying table unit 400, and the sealing material 105 softens. For example, the above-mentioned EVA resin softens at about 70°C to 80°C. In this state, when the panel assembly 101 is conveyed by being sandwiched between the feed roller 23 and the first pinch roller 24, the back sheet 103 side wraps around the driving roller 21 from the entry point E and curves with a curvature R. At this time, the glass lump 104a that has broken into a lump opens its cracks and a gap 104b appears. The gap 104b is set to a distance P smaller than the thickness Q of the panel assembly 101 such that the distance P<Q, and the protrusion 22a of the peeling roller 22 engages with the protrusion 22a, and the front part 22c of the blade tip of the protrusion 22a hooks on the corner of the crack. Furthermore, due to the peripheral speed difference (linear speed of "V1-V0") between the driving roller 21 and the peripheral speed V1 of the peeling roller 22, which is faster than the reference peripheral speed V0 of the driving roller 21, the front part 22c of the blade edge pushes the glass lump 104a in the peeling direction, and the glass lump 104a is peeled against the adhesive force of the sealing material 105 and separated as glass pieces 104c. In other words, the peeling of the glass lump 104a requires the conditions P<Q and V0<V1.

Since the panel assembly 101 cannot start being conveyed until the sealing material 105 is softened, it is necessary to soften the sealing material 105 by heating it from the glass 104 side with the heater units 410 in the conveying table unit 400. After that, the conveying start switch or the like is manually operated to rotate the feed roller 23 and convey the panel assembly 101. Therefore, as shown in FIG. 3, a set sensor 80 is provided at a position of distance L near the upstream of the feed roller 23 to detect the panel assembly 101 and detect the temperature of the panel assembly 101 with a temperature sensor (not shown), or the conveying table unit 400 is made to wait for a predetermined waiting time T until the sealing material 105 is softened, and then the feed roller 23 is automatically rotated to convey the panel assembly 101. Note that the heater units 410 do not have to be arranged over the entire vertical width of the panel assembly 101, since the panel assembly 101 can be heated by the heater units 410 while it is being conveyed.

Now, in the sandwiching portion between the feed roller 23 and the first pinch roller 24, the panel assembly 101 is rectangular and has a fixed length, so the rear end 101a of the panel assembly 101 passes through the sandwiching portion every time. When the rear end 101a passes through the sandwiching portion, the feed of the panel assembly 101 is changed from the speed V0 synchronized with the feed roller 23, the drive roller 21, and the discharge roller 25, and the load on the feed roller 23 at the rear end 101a disappears. If the holding force of the drive roller 21 on the panel assembly 101 is weak, the panel assembly 101 may be pushed in at a speed of V1 in the sandwiching portion X by the feed force of the peeling roller 22, which has a relationship of V1>V0. In other words, it may be difficult to reliably peel off the glass lump 104a using the speed difference between the outer circumferential speed V1 and the reference outer circumferential speed V0.

Therefore, a means is required to always reliably peel off the glass lump 104a even when the rear end 101a passes through the pinch portion between the feed roller 23 and the first pinch roller 24. FIG. 14 shows a control flow chart for controlling the peripheral speed of the peeling roller 22 to reliably peel off the glass lump 104a. At the same time, an outline of the detection control operation of the set sensor 80 described above will be explained using FIG. 3 and FIG. 4. When the panel assembly 101 is set on the conveying table unit 400 and the set sensor 80 is turned ON, the multiple heater units 410 start heating the glass 104 side of the panel assembly 101. When the panel assembly 101 is heated for a predetermined waiting time T in this state, the sealing material 105 softens (step 1). After that, the feed roller 23, the drive roller 21, and the discharge roller 25 start rotating at a peripheral speed of the reference peripheral speed V0, and the panel assembly 101 starts to be conveyed by the cooperation of the feed roller 23 and the first pinch roller 24, and the glass lump 104a starts to be peeled off at the pinch portion X. (Step 2)

Furthermore, as the peeling operation progresses, the rear end 101a of the panel assembly 101 passes the set sensor 80, switching from ON to OFF. When the rear end 101a is transported a distance approximately equal to the distance L and passes the nip between the feed roller 23 and the first pinch roller 24, the peeling roller 22 starts rotating in the direction of the dashed arrow in FIG. 4, which is the opposite direction to the feed direction of the drive roller 21, at a peripheral speed V2 different from the peripheral speed V1 (step 3). Note that V2=0 (stop) may also be acceptable. In other words, the glass lump 104a is peeled off by the rear part 22e of the opposite blade tip of the protrusion 22a of the peeling roller 22, receiving a force in the opposite direction to that when peeled off at the initial peripheral speed V1.

By doing this, even when the rear end 101a passes through the pinch between the feed roller 23 and the first pinch roller 24, the peeling roller 22 does not push it in at the peripheral speed V1, and the peeling force can always be applied stably to the glass lump 104a. Note that even if the rotation of the peeling roller 22 is in the same direction as the feed direction of the drive roller 21, if its peripheral speed V2 is much slower than the reference peripheral speed V0 of the drive roller 21 and the peripheral speed difference "V0-V2" is large, the rear part 22e of the blade tip of the peeling roller 22 engages with the glass lump 104a, generating a braking force, and receiving a force in the opposite direction, the peeling force can be applied to the glass lump 104a.

The configuration of a peeling roller unit 200 according to a second embodiment of the present invention will be described with reference to FIG.
In the second embodiment of the present invention, a second heater unit 420 is provided as an auxiliary heater between the nip between the feed roller 23 and the first pinch roller 24 and the nip between the drive roller 21 and the peeling roller 22. The second heater unit 420 has a similar structure to the heater unit 410, and is composed of a heater 421 and a reflector 422. The second heater unit 420 has an equal length so as to be able to heat the entire width of the panel assembly 101, and is provided extending in the axial direction of the drive roller 21. According to the second embodiment, auxiliary heating is performed immediately before the nip X, and it is possible to prevent the sealing material 105, which has been heated and softened while the panel assembly 101 reaches the nip X, from losing its temperature and becoming difficult to peel, and it is possible to reliably peel the glass gob 104a at the nip X.

The configuration of a peeling roller unit 200 in a modified example of the second embodiment of the present invention will be described with reference to FIG.
A modified example of the second embodiment of the present invention is that the position of the second heater unit 420 described above is a position where it is wound around the drive roller 21 at a position angle α from the entry point E of the panel assembly 101, and is provided opposite the circumferential surface of the drive roller 21. In this way, the sealing material 105 can be heated directly from the gap 104b of the glass lump 104a, which has the effect of allowing efficient heating.

The configuration of the peeling roller unit 200 in the third embodiment of the present invention will be described in detail with reference to FIG.
In the third embodiment of the present invention, the second peeling roller 30 is provided at a location other than the clamping portion X of the driving roller 21 and the peeling roller 22, so that the number of locations for peeling is two or more. In Fig. 9, the second peeling roller 30 rotates in the direction of the arrow at a peripheral speed (linear speed in the tangential direction) V3 by a driving means such as a driving motor (not shown). The outer periphery of the second peeling roller 30 has convex protrusions (scraping blades) 30a at regular intervals as shown in Fig. 5(a) like the peeling roller 22, and is a metal roller made of a cylindrical or cylindrical steel material or the like that extends in the axial direction to approximately the same length as the driving roller 21. In addition, a constant interval P2 is provided between the driving roller 21 and the second peeling roller 30, so that the glass lump 104a is peeled off while the panel assembly 101 is clamped at the clamping portion Y. The interval P2 has a relationship of P≧P2 and is set narrower than the interval P of the clamping portion X. Further, the relationship between the outer peripheral speed V3 of the second peeling roller 30 and the outer peripheral speed V1 of the peeling roller 22 is V3≧V1.

The other component configurations and the transport and peeling operations of the third embodiment of the present invention will be described below. Most of the glass chunks 104a of the panel assembly 101 are peeled off at the clamping section X, and the glass pieces 104c are accumulated in the collection box 5 by the collection pan 52, but there may be cases where glass chunks 104a remain unpeeled. The glass chunks 104a that remain unpeeled are transported further downstream and guided by the front guide 71 that extends in the direction of the central axis of the drive roller 21, and are guided to the clamping section Y between the drive roller 21 and the second peeling roller 30.

As described above, the clamping section Y has a relationship of P≧P2, so that the remaining glass lump 104a can be reliably peeled. The glass pieces 104c peeled off at the clamping section Y are guided to the recovery pan 53 and accumulated in the space 5a of the recovery box 5. The remaining resin sheet 107 is clamped between the downstream discharge roller 25 and the second pinch roller 26 and folded and placed on the sheet recovery table (not shown). In this way, by having the glass lump 104a peeled off at two locations, the clamping section X and the clamping section Y, it is possible to reliably peel off the glass lump 104a.

The configuration of a peeling roller unit 200 in a modified example of the third embodiment of the present invention will be described with reference to FIG.
In a modified example of the third embodiment of the present invention, a second driving roller 29 is provided in parallel with the driving roller 21 at a location separate from the nip portion X between the driving roller 21 and the peeling roller 22, and a second peeling roller 30 is disposed opposite the driving roller 29, and the gap between the nip portions Z between the second driving roller 29 and the second peeling roller 30 is set to a gap P2. Furthermore, the second driving roller 29 has a diameter D2 smaller than the diameter D of the driving roller 21. The second driving roller 29 rotates in the direction of the arrow at a reference peripheral speed (linear speed in the tangential direction) V0 by a driving means such as a driving motor (not shown). Also, the second peeling roller 30 rotates in the direction of the arrow at a peripheral speed (linear speed in the tangential direction) V3 by a driving means such as a driving motor (not shown) as described above.

The following describes other component configurations, transport operations, and peeling operations in a modified example of the third embodiment of the present invention. Most of the glass chunks 104a of the panel assembly 101 are peeled off at the clamping section X, but as in the third embodiment, some glass chunks 104a may remain unpeeled. After passing through the clamping section X, the panel assembly 101 passes between the front guide 71 and the rear guide 72 that are extended in the central axis direction of the drive roller 21, and is guided to the clamping section Z of the second drive roller 29 and the second peeling roller 30 so as to wrap around the second drive roller 29.

As described above, the clamping section Z has a relationship of P≧P2, so that a peeling force can be reliably applied to the remaining glass chunks 104a. The glass pieces 104c peeled off at the clamping section Z are guided to the recovery pan 53 and accumulated in the space 5a of the recovery box 5. The remaining resin sheet 107 is clamped between the downstream discharge roller 25 and the second pinch roller 26 and placed on the sheet recovery table (not shown) so as to be folded.

Here, the diameter D2 of the second drive roller 29 is greater than the diameter D of the drive roller 21, and the curvature of the panel assembly 101 winding around the second drive roller 29 is R2=D2/2, which is smaller than the curvature R of the panel assembly 101 winding around the drive roller 21. For this reason, the glass lump 104a that remains to be peeled is easily lifted from the resin sheet 107, and the gap 104b of the crack opens widely, making it easier for the protrusion 30a of the second peeling roller 30 to enter. As a result, the front part 30c of the blade tip of the protrusion 30a is caught in the gap 104b of the crack at the clamping portion Z, and the front part 30c of the blade tip pushes the glass lump 104a in the peeling direction due to the difference in peripheral speed between the second drive roller 29 and the peripheral speed V3 of the second peeling roller 30, which is faster than the reference peripheral speed V0 of the second drive roller 29 (linear speed of "V3-V0"), making it possible to peel the glass lump 104a that remains to be peeled even more reliably.

A method of controlling the rotation of the second peeling roller 30 in the third embodiment and the modified example of the third embodiment of the present invention will be described with reference to FIG.
14, a control of step 4 after detecting the leading end 107a of the resin sheet 107 is added. In FIG. 9, a leading end detection sensor 81 is provided downstream of the nipping portion between the discharge roller 25 and the second pinch roller 26, and can detect the leading end 107a of the resin sheet 107.

When the glass gob 104a is peeled off at two locations, clamping section X and clamping section Y or clamping section Z, and the remaining resin sheet 107 passes through the clamping section between the discharge roller 25 and the second pinch roller 26, the leading edge 107a is detected by the leading edge detection sensor 81 located downstream. At this stage, the entire length of the panel assembly 101 is clamped by all the rollers from the discharge roller 25 to the feed roller 23.

When the leading edge 107a is detected by the leading edge detection sensor 81 and changes from OFF to ON, the second peeling roller 30, which had been rotating at a peripheral speed V3 in the direction in which the driving roller 21 or the second driving roller 29 and the panel assembly 101 are fed, is rotated in the opposite direction to V3 at a peripheral speed V4 (shown by a dashed arrow in Figures 9 and 10). Since the panel assembly 101 is suspended by all the driving rollers, sufficient force is secured in the feeding direction, and it continues to be fed at a linear speed V0. (Step 4)

On the other hand, when the second peeling roller 30 is rotated in the opposite direction to V3 at an outer peripheral speed V4 (shown by a dashed arrow in Figures 9 and 10), a peeling force opposite to the peeling force received by the front blade tip 22c (see Figure 5(a)) at the clamping part X is applied to the remaining glass lump 104a. That is, a peeling force is applied to the glass lump 104a from the opposite direction by the rear blade tip 30e (see Figure 5(a)). In this way, by applying a different peeling force again from a direction different from the direction in which the peeling force was received once, peeling becomes even easier. The shape of the scraping blade of the second peeling roller 30 is similar to that of the peeling roller 22, has a protrusion 30a on the outer periphery, and has the blade shape shown in Figure 5(a).

Also, the peripheral speed V4 may be V4=0, but if it rotates in the reverse direction (the direction of the dashed arrow in the figure) at a peripheral speed slower than V0, peeling becomes even easier. Note that even if the rotation of the second peeling roller 30 is in the same direction as the feed direction of the drive roller 21 and the second drive roller 29, if its peripheral speed V4 is much slower than the reference peripheral speed V0 of the drive roller 21 and the second drive roller 29 and the peripheral speed difference "V0-V4" is large, the rear part 30e of the blade tip of the second peeling roller 30 engages with the glass lump 104a to generate a braking force, and the second peeling roller 30 receives a force in the reverse direction and can apply a peeling force to the glass lump 104a.
The main point here is that in an apparatus having a structure in which peeling is performed at a plurality of locations, namely, the clamping portion X and the clamping portion Y or the clamping portion Z, there is an advantage in that the peeling force applied at the downstream peeling portion is controlled to be in a different direction from the peeling force applied at the upstream peeling portion, thereby making peeling even easier. This point is the same in the fourth embodiment described later.

As in the second embodiment, the second heater unit 420, an auxiliary heater shown by the dashed line in FIG. 10, is provided in the space immediately before the clamping portion Z, and by applying heat, the softening of the sealing material 105 is assisted, and peeling at the clamping portion Z can be performed effectively. In other words, by providing the second heater unit 420 as an auxiliary heater at at least one of the two locations immediately before the clamping portion X and the clamping portion Z, there is an advantage in that the softening of the sealing material 105 is assisted, and the peeling of the glass lump 104a can be performed more effectively. Note that, when there are multiple peeling portions, the glass lump 104a can be peeled more effectively by providing an auxiliary heating heater unit immediately before at least one of the peeling positions and applying heat.

The configuration of the peeling roller unit 200 in the fourth embodiment of the present invention will be described in detail with reference to FIGS.
In the fourth embodiment of the present invention, a third peeling roller 31 is provided downstream of the nip portion X between the drive roller 21 and the peeling roller 22, and the number of peeling locations is two. In Fig. 12, the third peeling roller 31 is rotated in the direction of the arrow at a peripheral speed (linear speed in the tangential direction) V5 by a driving means such as a driving motor (not shown). The relationship between the peripheral speed V5 and the reference peripheral speed V0 is V5 ≥ V0.

11 and 13, the third peeling roller 31 is divided into left and right helical grooves 31b from approximately the center of its axial direction, and is connected by a central groove 31a. As a result, the third peeling roller 31 is formed with a right-handed helical ridge portion 31c and a left-handed helical ridge portion 31d, which have different twist directions from approximately the center to the left and right, forming a so-called lead screw whose twist direction is divided into left and right from the center. In addition, a peeling pan 75 is extended in the axial direction near the outer periphery, with a gap H slightly wider than the thickness of the resin sheet 107, so as to enclose about 1/4 of the outer periphery of the third peeling roller 31 (shown as range S in the figure). The peeling pan 75 also serves as a rear guide that guides the panel assembly 101 sent from the clamping section X to the third peeling roller 31, and as a guide that guides the resin sheet 107 to the clamping section between the discharge roller 27 and the second pinch roller 28. In addition, a front guide 76 is provided upstream of the third peeling roller 31, and conveying guides 77 and 78 are provided downstream, so as to face the peeling pan 75. Furthermore, the glass pieces 104c peeled off by the third peeling roller 31 are collected in the collection box 5 via the collection pan 55.

The peeling action of the third peeling roller 31 in the fourth embodiment of the present invention will be described with reference to FIG.
In the panel assembly 101 guided into the gap H between the third peeling roller 31 and the peeling pan 75, the glass lump 104a remains on the resin sheet 107. The glass lump 104a is guided to slip into the spiral groove 31b of the third peeling roller 31, and receives a peeling force G from the left and right spiral ridges 31c and 31d in the direction of the arrow perpendicular to the feed direction. In the figure, the glass lump 104a is separated into left and right from the central groove 31a and receives the peeling force G in the opposite directions. The reason for separating the glass lump 104a into left and right from the central groove 31a is to prevent the resin sheet 107 from shifting to one side due to the peeling force, and the strength of the resin sheet 107 acts as a resistance against the peeling force directed outward, peeling off the glass lump 104a.

The gap H is set slightly wider than the thickness of the resin sheet 107, and the peeling pan 75 is wrapped around the outer circumference of the third peeling roller 31 with the gap H so as to enclose about 1/4 of the circumference, so that the peeling force can always be applied over a long distance in the horizontal direction compared to the peeling distance in the vertical direction of rotation, making it possible to neatly peel off even small glass chunks 104a that remain unpeeled. In order to always apply peeling force in the horizontal direction, it is preferable that the range S for wrapping the peeling pan 75 around the outer circumference of the third peeling roller 31 is between 45° and 180°. The horizontal movement distance can also be set arbitrarily by setting the winding range S and the twist angle of the third peeling roller 31.

The fourth embodiment of the present invention has been described above, but the main point here is that in an apparatus having a structure in which peeling is performed at multiple locations including the clamping portion X, the gap H between the third peeling roller 31 and the peeling pan 75 at the downstream peeling location is made slightly wider than the thickness of the resin sheet 107, and by controlling the peeling force to be applied over a long distance in a direction different from the peeling force received at the upstream peeling location, there is an advantage that peeling is made even easier. In terms of applying a peeling force in a different direction, this is equivalent to detecting the leading end 107a of the resin sheet 107 and controlling the second peeling roller 30 in the third embodiment of the present invention and the modified third embodiment of the third embodiment, but in the fourth embodiment of the present invention, even without controlling the rotation or direction of the third peeling roller 31, a peeling force can be applied continuously in a direction different from the direction of the peeling force applied to the lump broken glass at the first peeling portion in the entire area from the leading end to the end of the waste (in this embodiment, a direction perpendicular to the direction of the peeling force), and the remaining glass lump can be reliably peeled. Another advantage is that even if the glass chunks are broken and become smaller in height, they can still pass through a gap that is slightly wider than the thickness of the resin sheet 107, making it possible to peel them off reliably.

The above has been a detailed explanation based on an embodiment of the present invention, but the embodiment is not limited to this, and the peeling portion may have any number of stages, and it goes without saying that various other configurations are possible without departing from the gist of the present invention.
For example, in the present invention, the peeling roller is described as a cylindrical or columnar metal roller having projections (scraping blades) intermittently provided on the entire peripheral surface, but it may be made of ceramics instead of metal.Furthermore, the peeling roller may be a cylindrical or columnar roller having thin wire brushes made of steel, brass, or the like radially arranged on the outer peripheral surface of the roller.
Furthermore, in the case of waste material (panel assembly 111) in which glass plates are bonded to both sides with a resin sheet 117 sandwiched therebetween as shown in Figure 17, by reversing the opposing positions of the second drive roller 29 and the second peeling roller 30 in the second peeling section, the broken lump-like glass chunks on one side can be scraped off by the clamping section X of the first peeling section, and then the broken lump-like glass chunks on the other side can be scraped off by the clamping section Z of the second peeling section, so that it can also be used to peel off broken lump-like glass chunks from laminated glass with a resin sheet 117 sandwiched therebetween.
In addition, the present invention proposes an apparatus for peeling off glass chunks from a resin sheet when the waste material contains glass that has already been cracked into plate glass chunks. However, it goes without saying that the apparatus may also include a unit for crushing the plate glass in the upstream stage of the apparatus.

1: Chunk broken glass peeling device 2: Base frame 5: Collection box 5a: Space 11: Left frame 12: Right frame 13: Beam 21: Drive roller (first drive roller)
22, 32, 42: peeling rollers (first peeling rollers)
22a, 32a, 42a: protrusions (scraping blades)
32b, 42b: recesses 22c, 32c, 42c: blade front portion 32d, 42d: side end portion 22e: blade rear portion 23: feed roller 24: first pinch roller 25, 27: discharge roller 26, 28: second pinch roller 29: second drive roller 30: second peeling roller 30a: protrusion (scraping blade)
30c: blade front portion 30e: blade rear portion 31: third peeling roller 31a: central groove portion 31b: spiral groove 31c: right-handed spiral ridge portion 31d: left-handed spiral ridge portion 51, 52, 53, 54, 55: recovery pan 61: lower guide 62: upper guide 62a: inner surface 63, 64, 73, 74, 77, 78: conveying guides 71, 76: front guide 72: rear guide 75: peeling pan 80: set sensor 81: leading edge detection sensor 100: solar panel 101, 111: panel assembly 101a: rear end portion 102: solar cell 103: back sheet 104: glass (cover glass)
104a: Glass lump 104b: Gap 104c: Glass piece 105: Sealing material 106: Wiring material 107, 117: Resin sheet 107a: Tip 108: Frame 200: Peeling roller unit 300: Transport conveyor unit 301: Conveyor base 302: Conveyor roller 400: Transport table unit 401: Transport base 402: Connecting beam 410: Heater unit 411: Heater 412: Reflector 420: Second heater unit 421: Heater 422: Reflector

X, X1, X2: a sandwiching portion between the driving roller and the peeling roller (first peeling portion)
Y: The nip between the drive roller and the second peeling roller (the second peeling portion)
Z: the sandwiching portion between the second driving roller and the second peeling roller (second peeling portion)
D: Drive roller diameter R: Drive roller radius (curvature radius)
E: Entry point into the drive roller F: Separation point from the drive roller T: Waiting time L: Distance from the set sensor to the nip between the feed roller and the first pinch roller P: Distance between the nip between the drive roller and the peeling roller P2: Distance between the nip between the drive roller and the second peeling roller Q: Thickness of the panel assembly S: Range of wrapping around the third peeling roller G: Peeling force of the third peeling roller H: Gap between the third peeling roller and the peeling pan θ1: Winding angle θ2: Winding angle θ3: Range angle of the position of the peeling roller θ4: Winding angle of the panel α: Position angle of the second heater V0: Reference peripheral speed V1, V2: Peripheral speed of the peeling roller V3, V4: Peripheral speed of the second peeling roller V5: Peripheral speed of the third peeling roller

Claims (6)

A peeling device for peeling off a chunk of broken glass from a resin sheet, the chunk of broken glass being a waste product in which a plate glass and a resin sheet are attached with an adhesive and the plate glass is broken into a chunk of cracked glass, the peeling device comprising:
a heater that heats the chunk of broken glass from the glass surface side and is disposed with a length that covers the entire width of the waste;
At least one pair of feed rollers and a first pinch roller are disposed downstream of the heater to pinch the waste material and transport it by rotational drive;
A driving roller that is cylindrical or cylindrical in shape and longer than the width of the waste material and rotates under power, the driving roller changing the direction of the feeding along the resin sheet surface so as to open the cracks in the chunk of broken glass of the waste material;
a peeling roller having scraping blades intermittently protruding from the entire circumferential surface within a range of a winding angle from a winding start point where the resin sheet contacts the rotating outer circumferential surface of the driving roller to a winding end point where the waste is discharged, the peeling roller being cylindrical or cylindrical and rotating at a linear velocity faster than the linear velocity of the driving roller;
At least one pair of discharge rollers and a second pinch roller are arranged to discharge the resin sheet from which the chunks of broken glass have been scraped off;
A device for removing broken glass in chunks comprising: The device for peeling off broken glass chunks described in claim 1 is provided with an auxiliary heater located upstream near the peeling roller, which heats the area extending from the glass surface to the width of the waste material. The device for peeling chunk broken glass described in claim 1 or 2, in which a second peeling roller is provided downstream of the first peeling section composed of the drive roller and the peeling roller, facing the drive roller, and the drive roller and the second peeling roller form a second peeling section. 3. A device for peeling off a chunk of broken glass as described in claim 1 or 2, wherein a second drive roller and a second peeling roller are arranged facing each other downstream of a first peeling section constituted by the drive roller and the peeling roller at a position not in contact with the drive roller, and the second drive roller and the second peeling roller constitute a second peeling section. 3. The device for peeling off a chunk of broken glass as described in claim 1 or 2 , wherein a third peeling roller having a spiral ridge portion provided symmetrically at the center at a position not in contact with the drive roller is provided downstream of a first peeling section composed of the drive roller and the peeling roller, and a peeling pan is extended in the axial direction of the third peeling roller with a gap slightly wider than the thickness of the resin sheet near the outer periphery of the third peeling roller and installed so as to wrap around a portion of the outer periphery of the third peeling roller, and the third peeling roller and the peeling pan form a second peeling section.
A chunk-broken glass peeling device as described in any of claims 3, 4 or 5, wherein a peeling force is applied to the chunk-broken glass in the second peeling section from a direction different from the direction of the peeling force applied to the chunk-broken glass in the first peeling section, at least within a portion of the waste feed direction.