JP2012140298A - Auxiliary adhesive device for laminated glass - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an auxiliary adhesive device for laminated glass which applies a pressing force uniformly on the entire surface of a curved laminated glass having an interlayer between overlapping curved glass plates, thereby preventing uneven adhesion between the curved glass plate and interlayer.SOLUTION: The auxiliary adhesive device achieves adhesion by pressing and sandwiching from both outer faces a curved laminated glass plate having an interlayer between curved glass plates which are laminated. The device comprises an upper flexible roller and a lower flexible roller disposed so as to sandwich the curved laminated glass plate from the top and bottom, and a plurality of independent upper flexible roller pressing means that press the upper flexible roller downwards and a plurality of independent lower flexible roller pressing means that press the lower flexible roller upwards. At least either one of the upper flexible roller pressing means and the lower flexible roller pressing means is provided with a height adjusting means for changing the shape of the flexible rollers by changing the height of each of the pressing means according to a preset program.

Description

  The present invention relates to a pre-bonding apparatus for laminated glass.

  Conventionally, a laminated glass is formed by inserting a PVB (polyvinyl vinyl butyral) resin sheet as an intermediate film between a plurality of glass plates and superimposing them, and heating and pressing with an autoclave. Manufactured by bonding glass plates together.

  In the step of adhering the laminated glass, if bubbles or the like remain between the glass plates, the air bubbles impair the see-through performance, or the glass plates of the laminated glass peel off due to a decrease in the adhesive strength between the glass plates. Problems may occur.

  Therefore, before the intermediate film is thermally melted by performing heating and pressurization in the autoclave to bond the glass plates together, in the preliminary bonding step, the glass plates are pressed together, It is necessary to fully deaerate.

  In the preliminary bonding process of laminated glass for automobile windows, since the laminated glass has a three-dimensionally curved shape, there are various means for uniformly pressing the glass surface so as to follow the shape. Proposed.

  In JP-A-2002-167244, in a pre-bonding apparatus that pressurizes a curved laminated glass sandwiching an intermediate film to be conveyed by a plurality of roll groups whose angles can be adjusted along the longitudinal sectional shape from both sides of the curved surface. Loading / unloading means for loading / unloading the curved glass freely at an inclination angle, a pressing roll group composed of an upper side roll group and a lower side roll group, and upper and lower pressing rolls are paired in the normal direction of the curved glass surface, respectively. A roll pressing means that includes a pressure adjusting valve that is arranged so as to press the glass surface for each pressing roll and makes the pressure in the pressing cylinder constant, and supports the upper and lower pressing cylinders. An angle adjusting means that supports the position movement in each of the long holes provided in the upper and lower horizontal frames provided in the horizontal direction, and the pressure angle to the curved glass is adjustable; Rotating means for connecting the both ends of the lower horizontal frame to a vertical frame to form a rectangular main body support frame, and for rotating the main body support frame with a support shaft provided at a substantially central portion of the vertical frame; Laminate characterized in that the glass is moved between the pressing roll groups and the moving speed is adjustable and the driving means is adjustable, and the upper and lower roll groups are set in the normal direction of the glass curved surface in accordance with the conveying speed of the curved glass. A glass pre-bonding apparatus is disclosed (Patent Document 1).

JP 2002-167242 A

  In the invention relating to the pre-bonding device for laminated glass described in Patent Document 1, the pressing roll that presses the curved laminated glass plate with the intermediate film sandwiched between the glass plates from both outer surfaces follows the curved surface of the glass plate. Because of the mechanism, when the edge of the glass plate straddles the edge of the glass plate in the direction of the rotation axis of the pressure roll, the axis of the pressure roll is inclined and can sufficiently press the periphery of the edge of the glass plate. However, there was a problem that uneven adhesion due to insufficient deaeration occurred.

  In view of such problems, the present invention provides a laminated glass pre-bonding step in which the curved laminated glass for automobiles including the edge portion is evenly distributed over the entire width direction perpendicular to the conveying direction. The object is to prevent pressure unevenness at the end of the laminated glass by pressing with pressure.

  That is, the present invention is a pre-adhesion apparatus that presses and holds a curved laminated glass plate laminated with an intermediate film between curved glass plates from both outer surfaces, and bonds the curved glass plates to each other by the intermediate film. An upper bendable roll and a lower bendable roll arranged so as to sandwich the curved laminated glass plate vertically so as to be along the curved surface of the curved laminated glass plate in a direction orthogonal to the conveying direction of the curved laminated glass plate A plurality of independent upper bendable roll pressing means connected or abutted to the upper bendable roll and pressing the upper bendable roll downward, and connected to or abutted to the lower bendable roll, A plurality of independent lower bendable roll pressing means for pressing the bendable roll upward, and the upper bendable roll pressing means and the lower bendable roll A height that changes the shape of the bendable roll connected to or in contact with the pressing means by changing the individual height of the pressing means according to a preset program in at least one of the pressing means. A pre-bonding apparatus for laminated glass, characterized in that a thickness adjusting means is provided.

  Alternatively, the present invention provides glass detecting means for detecting the presence or absence of the curved glass plate in a direction along the central axis of the upper and lower bendable rolls, and the bending of the upper bendable roll based on the detection result of the glass detecting means. The above-mentioned laminated glass pre-bonding apparatus, comprising: an upper bendable roll bending posture stabilizing means for adjusting the posture so as to follow the curved laminated glass plate.

  Alternatively, in the present invention, the upper bendable roll bending posture stabilizing means is composed of a plurality of pressing means that can be vertically expanded and contracted, and a pressing member that is installed with a space in the extending and contracting direction of the pressing means. One of the pressing means or the pressing member is provided in either the upper bendable roll or the upper bendable roll pressing means. .

  Alternatively, the present invention is characterized in that the upper bendable roll and the lower bendable roll have a plurality of ring-shaped ring members fitted into one core member in which a plurality of rigid universal joints are connected in series. This is a pre-bonding device for laminated glass.

  Alternatively, in the present invention, the upper bendable roll and the lower bendable roll are respectively pressed by the upper bendable roll pressing means and the lower bendable roll pressing via bearings supporting universal joints constituting the bendable roll. The laminated glass pre-bonding apparatus is characterized in that it is connected to means.

  Alternatively, the present invention provides the above-mentioned laminated glass, characterized in that it is provided with a bendable roll driving means for providing rotational driving along at least one central axis of the upper bendable roll and the lower bendable roll. This is a pre-bonding device.

  According to the present invention, in the pre-bonding step of the laminated glass, the height adjusting means provided on the pressing means operates based on the program while the curved laminated glass passes between the bendable rolls of the pre-bonding apparatus. In addition, since the shape of the bendable roll connected to the pressing means can be changed along the curved shape that changes every moment, the bendable roll is always brought into contact with the curved laminated glass plate surface. As a result, the pressing force can always be made uniform over the entire width of the curved laminated glass plate.

  Furthermore, when the curved laminated glass plate to be conveyed is sandwiched and pressed between the bendable rolls arranged above and below, the conveying direction of the laminated glass plate by the glass detection means provided in the preliminary bonding apparatus for laminated glass When the edge portion of the curved laminated glass plate passes under the upper bendable roll based on the detection result of the glass detecting means, The bendable roll bending posture stabilization means can hold the bending posture of the upper bendable roll in advance, and the edge portion can also be pressed uniformly.

The front view of the preliminary bonding apparatus of the laminated glass concerning embodiment of this invention. The cross-sectional enlarged view of the preliminary | backup bonding apparatus of the laminated glass concerning embodiment of this invention. Sectional drawing of the rotating shaft direction of the bendable roll concerning embodiment of this invention. The perspective view of the bendable roll concerning embodiment of this invention. Explanatory drawing for demonstrating operation | movement of a pressing means and a pressing member when a curved laminated glass plate is made to pass through the preliminary | backup bonding apparatus of the laminated glass concerning embodiment of this invention.

  Hereinafter, the present invention will be described in detail with reference to the drawings.

  The pre-bonding apparatus of the present invention is adjusted so that the lower bendable roll 30 'bends and abuts according to the shape of the lower surface of the curved laminated glass sheet G as shown in FIG. The upper bendable roll 30 is adjusted so as to be bent and contact along the upper surface.

  The upper bendable roll 30 and the lower bendable roll 30 ′ are connected to the upper bendable roll drive shaft 42 and the lower bendable roll drive shaft 43 at both ends.

  The drive force is transmitted to the upper bendable roll drive shaft 42 and the lower bendable roll drive shaft 43 by the drive force of the bendable roll drive motor 40 attached to one end of the support column 3. And a plurality of pulleys 44 and a plurality of belts 45.

  The upper bendable roll 30 and the lower bendable roll 30 ′ are respectively formed at a plurality of locations via the upper bendable roll support 11 and the lower bendable roll support 21 so that the upper bendable roll pressing means 10 and the lower bendable roll are curved. It connects with the adjustment means 20 and the lower bendable roll positioning member by the method mentioned later. The lower bendable roll curve shape adjusting means also functions as a lower bendable roll pressing means.

  The upper bendable roll pressing means 10, the lower bendable roll curve shape adjusting means 20, and the lower bendable roll positioning member 23 are fixed to the upper frame 4 and the lower frame 5, respectively. A plurality of lower bendable roll positioning members 23 are fixed to the frame 5 near the center, and the lower bendable roll bending shape adjusting means 20 is fixed to the frame 5 so as to sandwich the lower bendable roll positioning member 23 from side to side. Has been.

  The lower bendable roll positioning member 23 is a rigid frame material having a fixed height, and the lower bendable roll support member 21 ′ is connected to the lower bendable roll positioning member 23 through a lower bendable roll support member 21 ′. The position and height near the center of the are fixed. This height becomes the reference height of the lower bendable roll 30 '.

  Each lower bendable roll bending shape adjusting means 20 is provided with a lift servo motor as a height adjusting means for adjusting the height of each lower bendable roll. A ram cylinder is provided, and the curved laminated glass plate G that is always passed is pressed with a constant pressing force.

  Each servo motor provided in each lower bendable roll curve shape adjusting means 20 is programmed in advance in accordance with the curve shape of the curved laminated glass sheet G to be pre-bonded. As the curved shape of the curved laminated glass sheet G passing above changes with time, the height of each lower flexible roll curved shape adjusting means 20 is changed, so that the lower flexible roll 30 ′ is always curved by the curved laminated glass sheet. Operates to follow the shape of the surface.

  Since the upper bendable roll pressing means 10 is provided with a bellowram cylinder, the upper bendable roll bends in accordance with the curved surface of the curved laminated glass G following the operation of the lower bendable roll bend shape adjusting means 20. The pressing force applied to the curved surface of the curved laminated glass G can be maintained uniformly while changing the shape.

  The upper bendable roll pressing means 10 is provided with glass detecting means 50 one by one so as to form a pair on the exit side where the curved laminated glass G enters the upper bendable roll 30 and the exit side. It is detected whether or not the curved laminated glass sheet G passes under the detecting means.

  As the glass detecting means 50, a photoelectric sensor is used, and when the curved laminated glass plate G passes directly below the glass detecting means 50, the reflected light reflected by the curved surface of the curved laminated glass plate G is detected. Then, the presence of glass is detected.

  Based on the detection result of the glass detection means 50, each upper bendable roll bending posture stabilization means 60 combined with each glass detection means is operated. When the curved laminated glass plate G passes under the glass detecting means, the upper bendable roll bending posture stabilizing means 60 is not operated, and the curved laminated glass plate G does not pass under the glass detecting means. In this case, the upper bendable roll bending posture stabilizing means 60 operates, and the upper bendable roll is inclined at the edge portion in the width direction of the curved laminated glass sheet G. Uniformity is prevented.

  The upper bendable roll bending posture stabilizing means 60 is paired with the pressing means 61 and the pressing means 61 each composed of a vertically extendable cylinder attached to each upper bendable roll pressing means 10. And a pressing member 62 attached to the lower bendable roll curve shape adjusting means 20. The upper bendable roll support 11 is formed by a drag generated by the pressing means 61 pressing the pressing member 62. By being lifted, the upper bendable roll is lifted, and the upper bendable roll 30 on the edge portion of the curved laminated glass sheet G is corrected so as to be along the curved surface of the curved laminated glass sheet G. The pressing force is made uniform over the entire width of the curved glass plate G including the edge portion.

  The glass detecting means 50 and the pressing means 61 are not attached to at least one upper bendable roll pressing means 10 installed near the center of the upper bendable roll 30. Glass detecting means 50 and pressing means 61 are attached to other upper bendable roll pressing means 10 so as to be aligned in the full width direction perpendicular to the conveying direction of the curved laminated glass sheet G. The positional relationship between the pressing means 61 and the glass detecting means 50 on each upper bendable roll pressing means 10 is the same as that of the full width of the curved laminated glass sheet G as viewed from the installation position of each upper bendable roll pressing means 10. A pair of glass detecting means 50 is attached so as to sandwich the upper bendable roll pressing means 10 in the center direction in the front-rear direction of the conveying direction, and a pressing means 61 is attached in the end direction of the full width.

  The glass detecting means 50 and the pressing means 61 attached to each upper bendable roll pressing means 10 operate as one pair, and when the curved laminated glass plate G does not pass through the lower part of a certain glass detecting means 50, The pressing means 61 that is paired with the glass detecting means 50 presses the pressing member 62 that is paired with the glass detecting means 50, and the upper bendable portion that includes the glass detecting means 50 and the pressing means 61 by the drag force. The upper bendable roll near the glass detecting means 50 is pushed up through the upper bendable roll support 11 to which the roll pressing means 10 is connected.

  FIG. 3 is a cross-sectional view of the bendable rolls 30 and 30 ′ in the rotation axis direction, and FIG. 4 is a perspective view of the bendable rolls 30 and 30 ′.

  Each of the bendable rolls 30 and 30 ′ includes a bendable core material in which a plurality of rigid bendable rod members 31 are connected by a universal joint, and each bendable rod member 31 has an elastic ring member 32. It is fixed.

  The elastic ring members 32 and 32 ′ are coupled to the bendable rod members 31 and 31 ′, and cover the outer sides of the rigid cylindrical members 32a and 32a ′ and the cylindrical members 32a and 32a ′. It is comprised from the cylindrical elastic members 32b and 32b 'contact | abutted with the glass surface G. FIG. As the material of the cylindrical elastic members 32b and 32b ', a hard resin such as rubber is used.

  Bendable roll bearing members 33 and 33 'are connected to the bendable rod members 31 and 31' via bendable rod member rotating bearings 33a and 33a '. 34 and 34 'are provided.

  FIG. 2 is an enlarged view of the vicinity of the upper bendable roll 30 and the lower bendable roll 30 ′ in the cross section aa ′ of FIG. 1.

  The upper bendable roll 30 and the lower bendable roll 30 ′ are bearings 34 and 34 ′ provided on the bendable roll bearing members 33 and 33 ′, respectively, and the upper bendable roll provided in the upper bendable roll pressing means 10. The support 11 and the lower bendable roll curved shape adjusting means 20 are connected to a lower bendable roll support 21 provided in the upper bendable roll bearing member oscillating portion 12 and a lower bendable roll bearing member. The tilt is adjusted so that the upper bendable roll 30 and the lower bendable roll 30 ′ function as the oscillation unit 22 and are perpendicular to the curved surface along the curved surface that changes as the curved laminated glass sheet G passes. The

  Next, the operation of the preliminary bonding apparatus will be described.

  The curved laminated glass sheet G to be pre-bonded by the pre-bonding apparatus is transported to the pre-bonding apparatus 1 of the present invention by a transport conveyor (not shown) provided before and after the pre-bonding apparatus of the present invention in the transport direction. The

  The curved laminated glass sheet G that has entered the pre-bonding apparatus 1 of the present invention is sandwiched between the upper bendable roll 30 and the lower bendable roll 30 ′, and in the conveying direction by the rotation of the bendable rolls 30 and 30 ′. As the propulsive force is applied and the curved laminated glass sheet G advances between the upper bendable roll 30 and the lower bendable roll 30 ′, the curved laminated glass sheet G is detached by the pressing force of the upper bendable roll 30. The intermediate film sandwiched between the glass plates constituting the curved laminated glass plate G is preliminarily bonded.

  The lower bendable roll curve shape adjusting means 20 that bends along the curve shape of the curved laminated glass sheet G passing through the lower bendable roll 30 ′ is provided in each lower bendable roll curve shape adjusting means 20. The operation of the raising / lowering servo motor is programmed in advance in consideration of the shape and conveying speed of the curved laminated glass sheet G, and the height is sequentially adjusted as the curved laminated glass sheet G passes, so that the lower bendable roll 30 ′ Is adjusted so that the curved shape of the curved laminated glass plate is always passing.

  Each upper bendable roll pressing means 10 that presses the upper bendable roll 30 includes a bellowram cylinder, so that the upper bend is adjusted following the movement of the lift servomotor of the lower bendable roll curve shape adjusting means 20. While the height of the flexible roll 30 is adjusted, a constant pressing force is always generated.

  Further, the individual bending rod members 31, 31 ′ constituting the upper bendable roll 30 and the lower bendable roll 30 ′ are respectively curved through the upper bendable roll pressing means 10 and the lower bendable roll via bearings 34, 34 ′. Since it is connected to the shape adjusting means 20, each bent rod member 31, 31 ′ has a degree of freedom in the operation in the width direction perpendicular to the conveying direction of the curved laminated glass G, and the curved laminated glass plate G The inclination of each elastic ring member 32, 32 ′ is adjusted so that each elastic ring member 32, 32 ′ coupled to each bending rod member 31, 31 ′ abuts on the curved surface of It becomes possible to perform preliminary bonding with a uniform pressing force in almost all areas of the curved laminated glass sheet G by the bonding apparatus.

  Further, as shown in FIG. 5A, the curved laminated glass plate G is not rectangular, so that the curved laminated glass plate G passes between the upper bendable roll 30 and the lower bendable roll 30 ′. The range of the upper bendable roll 30 and the lower bendable roll 30 ′ in contact with the glass plate G changes over time.

  In the conventional pre-bonding apparatus, as shown in FIG. 5B, at the edge of the curved glass plate G, a part of the roll may protrude from the curved laminated glass plate G. If the roll protrudes from the curved laminated glass plate G as shown in FIG. 5B, the roll does not come into contact with the curved surface of the curved laminated glass plate G at the edge of the curved laminated glass plate G. The pressing force was non-uniform around the laminated glass plate G, and this caused uneven adhesion of the curved laminated glass.

  In order to detect such a problem, the pre-bonding device of the present invention detects the range where the upper bendable roll 30 and the lower bendable roll 30 ′ are in contact with the curved laminated glass G in the central portion of the device. Except for the attached upper bendable roll pressing means, all upper bendable roll pressing means are paired before and after the curved laminated glass sheet G in the conveying direction so as to sandwich the upper bendable roll pressing means. A glass detecting means 50 is attached, and an upper bendable roll bending posture stabilizing means 60 corresponding to each pair of glass detecting means is provided. Upon receiving the detection result of the glass detecting means 50, the upper bendable roll bending posture stabilizing means 60 is provided. Was activated, and it was possible to apply a uniform pressing force even at the edge portion of the curved laminated glass sheet G.

  The operation of the upper bendable roll bending posture stabilizing means will be described with reference to FIG.

  The upper bendable roll bending posture stabilizing means 60 includes a pressing means 61 installed in each upper bendable roll pressing means 10 and a pressing member 62 located immediately below the lower bendable roll bending shape adjusting means 20. It consists of and.

  In FIG. 5 (a), the interval between each of the plurality of broken lines shown in the figure represents the width of each elastic ring material constituting the upper bendable roll 30, and the numbers shown on the left side of the figure are In order to explain the positional relationship between each elastic ring material and the curved laminated glass plate G, it is swung for convenience. Moreover, the arrow drawn in the figure is the conveyance direction of the curved laminated glass plate G.

  The glass detecting means 50 and the pressing means 61 and the pressing member 62 that are paired with the glass detecting means 50 are attached to the ends of the bending rods at the left and right ends and between the elastic ring materials. Yes.

  The pair of glass detecting means 50 and the pressing means 61 installed between the elastic ring members are such that the pressing member is freely bendable so that the glass detecting means 50 is on the center side of the upper bendable roll 30. It arrange | positions so that it may become the edge part side of the roll 30. FIG.

  Since each glass detecting means 50 is arranged as described above, when the curved laminated glass plate G does not pass through a lower portion of a certain glass detecting means 50, the glass detecting means 50 and the curved laminated glass plate G are conveyed. It can be considered that a part of the elastic ring material overlapping in the direction is not placed on the curved laminated glass plate G.

  Therefore, when the curved laminated glass sheet G does not pass through the lower part of the glass detection means 50 installed in a certain place, the pressing means 61 paired with the glass detection means 50 operates so as to press the pressing member 62. The upper bendable roll of the upper bendable roll pressing means 10 to which the pressing means 61 is attached to the elastic ring material overlapping in the conveying direction of the glass detecting means 50 and the curved laminated glass plate. The elastic ring material located at the end of the curved laminated glass plate G can be brought into contact with the curved laminated glass plate G along the curved laminated glass plate G. .

  Each glass detection means 50 is a curved laminated glass plate in an area of 1/3 or more from the end of the upper bendable roll 30 with respect to the elastic ring material overlapping each glass detecting means 50 and the curved laminated glass plate G in the conveying direction. When G is not mounted, it is desirable that the mounting position is adjusted so that the curved laminated glass plate G can be recognized as not passing therethrough.

  With respect to each elastic ring material, when the curved laminated glass plate G is not placed in a region of 1/3 or more from the end side of the upper bendable roll 30, the outer side of the elastic ring material on which the curved laminated glass plate G has not been placed. A specific example of the operation of the upper bendable roll bending posture stabilizing means will be described with reference to FIG. For example, when bb ′ of the curved laminated glass sheet G is located between the upper bendable roll and the lower bendable roll, [1] [2] [10] [11] of the elastic ring material is It is in a state where it does not rest on the curved glass plate G.

  At this time, as shown in FIG. 5C, the cylinder provided in the pressing means 61 installed on the left side of the elastic ring material [1] and between [1] and [2] is lowered, Via the upper bendable roll support of the upper bendable roll pressing means 10 that is directly below and is in contact with the pressing member 62 installed on the lower bendable roll curve shape adjusting means and to which the respective pressing means 61 is attached. Push up the left side of the elastic ring materials [1] and [2]. At the same time, the pressing means 61 installed between the right side of the elastic ring material [11] and between [10] and [11] is also operated, and the pressing means installed directly below the lower bendable roll curve shape adjusting means. The right side and [11] of the elastic ring material [10] are pushed up through the upper bendable roll support of the upper bendable roll pressing means 10 that is in contact with the member 62 and to which the respective pressing means 61 is attached.

  Since the elastic ring members [1] to [11] are all connected by universal joints, when the left side of [1] and [2] and the right side of [10] and [11] are lifted, the adjacent elastic ring The material is also lifted, and the inclination of the upper bendable roll is corrected so as to follow the curved surface of the curved laminated glass sheet G in the entire width direction.

  In FIG. 5 (a), when the curved laminated glass plate G further advances and the vicinity of cc ′ reaches the preliminary bonding apparatus 1, the glass detection means 50 provided between the bending rods [2] [3] Glass cannot be detected. In response to this detection result, the cylinder of the pressing means between the bending rods [2] and [3] is lowered and brought into contact with the pressing member existing immediately below, and the upper bending portion to which the pressing means 61 is attached. The bending rod [3] is lifted through the upper bending roll support of the universal roll pressing means 10.

  As a result, as shown in FIG. 5 (d), the elastic ring material [1] is placed between the left side and [1] and [2], between [10] and [11], and on the right side of [11]. Not only the pressing means installed, but also the pressing means installed between the elastic ring materials [2] [3] are operated, and the elastic ring materials [1] [2] and [3] of the upper bendable roll ] And the right side of [10] and [11] are lifted by the pressing member, and the curved shape of the upper bending roll is adjusted so as to follow the curved shape of the curved laminated glass sheet G.

  When the curved laminated glass plate G further advances and d-d 'reaches the vicinity of the preliminary bonding apparatus 1, the glass detecting means between the elastic ring materials [2] [3] detects the glass. In response to this detection result, the cylinder of the pressing member provided between the elastic ring members [2] and [3] is raised, and it is possible to apply a uniform pressing force to the curved laminated glass sheet G.

  In this way, by lowering only the cylinder of the pressing member provided between the elastic ring materials through which the glass plate does not pass in accordance with the passage of the curved laminated glass plate G, the edge portion of the curved glass plate is also separated from other regions. It became possible to press with the same pressing force, and the entire surface of the curved glass plate G could be pre-bonded with a uniform pressing force, thereby eliminating uneven bonding due to insufficient deaeration.

  In the pre-bonding apparatus of the present invention, both the upper bendable roll 30 and the lower bendable roll 30 'are driven to rotate, but only one of them may be driven.

  Further, the upper bendable roll 30 and the lower bendable roll 30 ′ are respectively connected to the upper and lower bendable roll supports 11 and 21 connected to the upper bendable roll pressing means 10 and the lower bendable roll bending posture adjusting means 20, respectively. The bendable roll bearing members 33 and 33 ′ provided in each of the bendable rolls 30 and 30 ′ are connected to each other, but it is not always necessary to do this. For example, the upper bendable roll pressing means and the lower bend A wheel may be provided for each of the flexible roll bending posture adjusting means, and the wheel may be brought into contact with the upper bendable roll and the lower bendable roll.

  The servo motor used in the lower bendable roll bending posture adjusting means 20 is not necessarily provided on the lower side of the curved laminated glass sheet G, and can be provided on the upper side. In this case, when the curved laminated glass plate G passes between the upper and lower bendable rolls, the pressing force by the operation of the servo motor provided at the position around the edge of the curved laminated glass plate G is determined by the program. By adjusting, it is possible to prevent the elastic ring material from inclining at the edge portion, so that it is possible to configure the preliminary bonding apparatus without using the pressing means and the pressing member as used in this embodiment. It is. In this way, when the servo motor is provided on the upper side, the bellowram cylinder is provided on the lower side, or the lower side can also control the bending posture and the pressing force with a program by the servo motor. Necessary for pressing the curved laminated glass plate G uniformly.

  Further, the glass detecting means 50 and the upper bendable roll bending posture stabilizing means 60 do not necessarily have to be provided over the entire width of the bendable rolls 30 and 30 ′, and the curved laminated glass is formed at the ends of the bendable rolls 30 and 30 ′. You may make it prepare only for the range which may not pass.

  Although the preferred embodiment has been described above, the present invention is not limited to this, and various applications can be considered.

G Curved laminated glass plate 1 Preliminary bonding apparatus 2 Base 3 Support column 4 Upper frame 5 Lower frame 10 Upper bendable roll pressing means 11 Upper bendable roll support 12 Upper bendable roll bearing member swinging portion 20 Lower bendable roll curved shape Adjusting means 21 Lower bendable roll support 22 Lower bendable roll bearing member swinging portion 23 Lower bendable roll positioning member 30, 30 'Bendable roll 31, 31' Bend rod material 32, 32 'Elastic ring material 32a, 32a 'Cylindrical members 32b, 32b' Cylindrical elastic members 33, 33 'Bendable roll bearing members 33a, 33a' Bending rod member rotating bearings 34, 34 'Bearing 40 Bendable roll drive motor 41 Bendable roll drive force left and right connection Shaft 42 Upper bendable roll drive shaft 43 Lower bendable roll drive shaft 44 Pulley 45 Belt 5 Glass detection means 60 upper bendable roll bending posture stabilization means 61 pressing means 62 pressing member

Claims (6)

A pre-bonding device that presses and holds a curved laminated glass plate laminated with an intermediate film sandwiched between curved glass plates from both outer surfaces, and bonds the curved glass plates together with the intermediate film,
An upper bendable roll and a lower bendable roll disposed so as to sandwich the curved laminated glass plate vertically so as to be along the curved surface of the curved laminated glass plate in a direction perpendicular to the conveying direction of the curved laminated glass plate; ,
A plurality of independent upper bendable roll pressing means connected or abutted to the upper bendable roll and pressing the upper bendable roll downward; and the lower bendable roll connected or abutted to the lower bendable roll A plurality of independent lower bendable roll pressing means for pressing upwards,
At least one of the upper bendable roll pressing means and the lower bendable roll pressing means is connected or brought into contact with the pressing means by changing the individual height of the pressing means according to a preset program. A pre-bonding apparatus for laminated glass, characterized in that a height adjusting means for changing the shape of the bendable roll is provided. Glass detecting means for detecting the presence or absence of the curved glass plate in a direction along the central axis of the upper and lower bendable rolls;
2. An upper bendable roll bending posture stabilization unit that adjusts the bending posture of the upper bendable roll along the curved laminated glass plate based on the detection result of the glass detecting unit. A preliminary bonding apparatus for laminated glass as described in 1. The upper bendable roll bending posture stabilizing means is
A plurality of pressing means that can be vertically expanded and contracted;
A pressing member installed with a space in the expansion and contraction direction of the pressing means,
One of the said pressing means or the said pressing member is provided in either the said upper bendable roll or the said upper bendable roll pressing means, The preliminary | backup adhesion | attachment of the laminated glass of Claim 2 characterized by the above-mentioned. apparatus.   4. The upper bendable roll and the lower bendable roll are obtained by inserting a plurality of ring-shaped ring materials into a single core member in which a plurality of rigid universal joints are connected in series. The preliminary bonding apparatus for laminated glass according to any one of the above. The upper bendable roll and the lower bendable roll are:
5. The upper flexible roll pressing means and the lower flexible roll pressing means are respectively connected to the upper flexible roll pressing means and the lower flexible roll pressing means via bearings that support universal joints constituting the flexible roll. The pre-bonding apparatus for laminated glass according to one.   6. A bendable roll driving means for providing a rotational drive with at least one central axis of the upper bendable roll and the lower bendable roll as a rotation axis is provided. The laminated glass pre-bonding apparatus according to claim 1.

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