JP2007118145A - Flexible film cutting device and flexible film cutting method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a flexible film cutting device and a flexible film cutting method capable of smoothly cutting a flexible film aiming at importance of angles of a cutter blade tip when cutting into a surface of the flexible film and cutting it, in cutting of a cantilevered flexible film (including an intermediate film). <P>SOLUTION: When cutting and trimming with cutters 40A and 40B and when trimming with a pair of cutters 56, a trimming device 10 cuts an intermediate film 16 and film pieces 17A, 17B and 17C by changing angle of a blade tip when the cutters 40A, 40B and 56 approach the intermediate film 16 and film pieces 17A, 17B and 17C and angle of the blade tips when the cutters 40A, 40B and 56 travels to the intermediate film 16 and the film pieces 17A, 17B and 17C for cutting. Angle of the blade tips of the cutters 40A, 40B and 56 when approaching are set at 80 - 100 degree, and angle of the blade tips of the cutters when cutting is set at 30 - 50 degree. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a flexible film cutting apparatus and method, and more particularly, to an apparatus and method for suitably cutting a flexible film in a cantilever posture, and further, a laminated glass having an intermediate film interposed between two glass plates. In this manufacturing process, the present invention relates to a flexible film cutting apparatus and method for trimming, that is, trimming, an end (film piece) of an intermediate film protruding from the edge of two glass plates.

  Building glass such as crime prevention glass and safety glass, automobile windshield, etc., laminated glass with excellent penetration resistance, that is, ethylene vinyl acetate copolymer, polyvinyl butyral between two glass plates, Laminated glass in which one or more plastic intermediate films (flexible films) such as polyurethane and silicon resin are interposed is used.

  Various kinds of such laminated glass manufacturing apparatuses have been proposed in the past, but in Patent Document 1, the operation of joining the first glass plate and the second glass plate via a plastic intermediate material (intermediate film), An apparatus for manufacturing a bonded glass is disclosed in which an operation for cutting out a plastic intermediate material is carried out at a cutting process place after being carried out at an initial work place. That is, according to patent document 1, after conveying a 1st glass plate and a 2nd glass plate to an opening process place with a conveyor belt, a 1st glass plate is lifted upwards with a fixing machine. Next, after the plastic intermediate material is bonded to the second glass plate, the first glass plate is bonded to the second glass plate via the single-sheet plastic intermediate material. And joining glass is manufactured by pinching a 1st glass plate and a 2nd glass plate with a pair of roller. Thereafter, the bonded glass is transported to a cutting process place by a conveyor belt, and the final product bonded glass is manufactured by cutting out the plastic intermediate material.

  In addition, the plastic intermediate material of patent document 1 is an adhesive agent apply | coated to both surfaces, and the release paper was affixed on the both surfaces. The release paper is peeled off by a roller when bonded to the second glass plate and when the first glass plate is bonded.

On the other hand, the laminated glass edge-cutting device described in Patent Document 2 sandwiches a film as an intermediate film between two glass plates, aligns the plates, and then performs preliminary edge-cutting at the protruding portion of the film. . Thereafter, a laminated glass in which the two glass plates and the film are integrally bonded by heating and pressurizing in an autoclave is manufactured. And this laminated glass is conveyed to the ear-cutting device, and the protruding part of the film is finally cut by the cutter held by the robot arm of the ear-cutting device.
JP 2001-192246 A JP 2000-327376 A

  However, in flat laminated glass for buildings, etc., glass edges are often not chamfered unlike automotive windshields, etc., so that when the cutter is pressed against the glass as in Patent Document 2, the glass is glazed, This causes defects such as chipping. In addition, the intermediate film is a material with flexibility and cantilevered in the production process. Therefore, when cutting with a cutter, the intermediate film is backed up with the intermediate film as described in Patent Document 2. If there is no (Glass in Patent Document 1), the intermediate film escapes and it is difficult to reliably cut.

  The present invention has been made in view of such circumstances, and when cutting a flexible film (including an intermediate film) in a cantilever posture, the angle at the time of cutting and cutting of the cutter blade edge with respect to the surface of the flexible film is It aims at providing the flexible film cutting device which can cut | disconnect a flexible film smoothly, and its method paying attention to being important.

  In order to achieve the above object, the invention according to claim 1 is a film cutting apparatus provided with a cutter that cuts a flexible film, wherein the cutting edge of the cutter is a flexible film when the flexible film is cut. Provided is a flexible film cutting device characterized in that an angle at the time of entering the surface and an angle at the time of traveling with respect to the flexible film surface when cutting the flexible film can be changed.

  The invention according to claim 6 is a film cutting method for cutting a flexible film in order to achieve the above object, and a cutting edge of a cutter for cutting the flexible film is used when cutting the flexible film. Cutting the flexible film by changing the angle at the time of entering the flexible film surface and the angle at the time of traveling with respect to the flexible film surface when cutting the flexible film to cut the flexible film Provide a method.

  According to the first and sixth aspects of the invention, the angle of the blade edge when the cutter enters the flexible film surface when the flexible film is cut by the blade edge of the cutter, and the flexibility when the flexible film is cut by the cutter. The angle of the blade edge at the time of cutter traveling with respect to the film surface is changed to cut the flexible film. Thus, by making it possible to change the angle of the blade edge of the cutter when entering and cutting the flexible film, the blade edge of the cutter can be set to an optimum angle, so that the flexible film can be cut smoothly.

  According to a second aspect of the present invention, in the first aspect, the cutter is rotated by a rotation mechanism at the time of the entry and the traveling, and an angle of the blade edge of the cutter with respect to the flexible film surface is a predetermined angle. It is characterized by being set to.

  According to a seventh aspect of the present invention, in the sixth aspect of the present invention, the cutter is rotated by a rotation mechanism at the time of the entry and the traveling, and an angle of the blade edge of the cutter with respect to the flexible film surface is a predetermined angle. It is characterized by being set to.

  According to the second and seventh aspects of the invention, the angle of the cutter blade edge is changed by the rotating mechanism. For example, a rotation shaft is attached to one end of the cutter, and this rotation shaft is connected to the drive unit of the rotation mechanism. The angle of the blade edge can be easily changed by rotating the rotation shaft by the drive unit.

  The apparatus invention according to claim 3 is characterized in that, in claim 1 or 2, the angle at the time of entering the cutting edge of the cutter is at least 80 degrees to 100 degrees with respect to the flexible film surface. .

  The method invention according to claim 8 is characterized in that, in claim 6 or 7, the angle at the time of entry of the cutting edge of the cutter is at least 80 degrees to 100 degrees with respect to the flexible film surface. .

  If the angle of the blade edge at the time of entering the cutter is set to 80 to 100 degrees as in the inventions according to claims 3 and 8, for example, the cutter retracted to the horizontal position is directed toward the end of the flexible film. When rotated downward, the cutter stops at a substantially bottom dead center position where the cutting force of the cutter can be efficiently transmitted from the cutter edge to the end of the flexible film. A notch is added. Thereby, a notch can be reliably made to the edge part of a flexible film.

  The device invention according to claim 4 is characterized in that, in claim 1, 2, or 3, the angle of the cutter blade edge during the traveling is at least 30 to 50 degrees with respect to the flexible film surface. It is said.

  The method invention according to claim 9 is the method according to claim 6, 7 or 8, wherein the angle of the cutter blade edge during the traveling is at least 30 degrees to 50 degrees with respect to the flexible film surface. It is said.

  According to invention of Claim 4, 9, when the angle of the cutter blade edge with respect to the flexible film surface at the time of cutting is less than 30 degrees, the force of the cutter blade edge is effectively transmitted to the flexible film. The flexible film escapes from the cutter. On the other hand, when the angle exceeds 50 degrees, it becomes difficult to smoothly cut the flexible film because the pressing force acts on the flexible film more than the cutting force. Therefore, the angle of the cutter blade edge with respect to the flexible film surface at the time of cutting is in the range of 30 to 50 degrees.

  The device invention according to claim 5 is the device according to claim 1, 2, 3 or 4, wherein the flexible film cutting device is a film of an intermediate film protruding from an edge between two glass plates in a laminated glass production line. It is characterized by being used in an apparatus for cutting a piece.

  The method invention according to claim 10 is the method according to claim 6, 7, 8 or 9, wherein the flexible film cutting method is a film of an intermediate film protruding from an edge between two glass plates in a laminated glass production line. It is characterized by being used in a method of cutting a piece.

  According to invention of Claim 5, 10, the film piece of the intermediate film which protruded from the edge part of a laminated glass can be cut | disconnected smoothly.

  According to the flexible film cutting device and the method thereof according to the present invention, the angle of the blade edge when the cutter enters the flexible film when the flexible film is cut by the cutter, and the flexible film is cut by the cutter. Since the flexible film is cut by changing the angle of the blade edge when the cutter travels with respect to the flexible film, it is possible to smoothly cut both the flexible film with both ends fixed and the cantilevered flexible film. In particular, it is effective for cutting an interlayer film in the production of laminated glass.

  DESCRIPTION OF THE PREFERRED EMBODIMENTS Preferred embodiments of a flexible film cutting device and method according to the present invention will be described in detail below with reference to the accompanying drawings.

  FIG. 1 is a perspective view showing an overall structure of a trimming device 10 for a large-sized laminated glass according to one embodiment of the flexible film cutting device of the present invention. The trimming device 10 is rectangular. It is an apparatus for cutting a film piece of a plastic intermediate film (flexible film, typically polyvinyl butyral film) protruding from the edge of the manufactured laminated glass for buildings. 2 and 3 are side views of the trimming apparatus 10 shown in FIG.

  The trimming device 10 includes a conveying device 14 that conveys the first glass plate G1 and the second glass plate G2 having the same shape to the lamination position 12 of the laminated glass production line, and a supply device 18 that supplies the intermediate film 16 to the lamination position 12. The cutting device 20 that mainly cuts the film piece of the intermediate film 16 that protrudes from the edge of the first glass plate G1 and the second glass plate G2 at the stacking position 12 is mainly configured.

  The transport device 14 includes a transfer unit 26 in which a large number of suction pads 22, 22. The transfer unit 26 can be moved up and down by a lifting device (not shown), is supported by the linear guide 28 so as to run freely, and is driven by a feeding device such as a ball screw to be stacked above the positioning position 30. It is reciprocated between above the position 12. As a result, the first glass plate G <b> 1 transported to the positioning position 30 and positioned is sucked and held by the suction pads 22, 22. Thereafter, the first glass plate G1 is placed on the roller conveyor 32 at the stacking position 12 as shown in FIG. 3 by the lifting operation of the transfer / transfer unit 26, the moving operation toward the stacking position 12, and the lowering operation. The

  In the embodiment, the transfer unit 26 is lowered, but the roller conveyor 34 at the positioning position 30 may be raised to hold the first glass sheet G1 by suction on the transfer unit 26. Further, the first glass plate G1 conveyed by the transfer unit 26 may be received by raising the roller conveyor 32 at the stacking position 12. On the other hand, a glass plate cleaning / drying device (not shown) is installed upstream of the positioning position 30 in the glass plate conveyance direction. Here, the cleaned and dried glass plate is intermittently conveyed to the positioning position 30. Further, a pre-crimping device and an autoclave (not shown) are installed downstream of the laminating position 12, and the laminated glass laminated at the laminating position 12 is pre-crimped by the pre-crimping device and then conveyed to the autoclave, where By being heated and pressurized at a predetermined temperature and pressure, it is produced into a final laminated glass.

  As shown in FIG. 1, the supply device 18 is composed of a plurality of film chucks 38, 38... And a cutter (cutting means) 40A. The film chuck 38 is a chuck for holding the end portion of the intermediate film 16 wound in a roll shape and rewinding the intermediate film 16 from the roll 42. The cutter 40A needs to be unwound by the film chuck 38. This is a cutter that divides a long (one sheet) intermediate film 16 from a roll 42.

  The film chuck 38 and the cutter 40 </ b> A are provided at predetermined positions of the portal head 44 installed so as to straddle the roller conveyor 32 at the stacking position 12. A plurality of film chucks 38 are provided at a predetermined interval so as to hold the end portion of the intermediate film 16 without slack.

  Both leg portions 45, 45 of the head 44 are movably supported by linear guides 46, 46, and the linear guides 46, 46 are disposed on both sides of the roller conveyor 32 along the conveying direction by the roller conveyor 32. Yes. Further, both leg portions 45, 45 of the head 44 are screwed into ball screws (not shown) provided in the linear guides 46, 46, and the ball screws are fixed to end portions of the linear guides 46, 46. The servomotors 48 and 48 are rotationally driven. Therefore, when the ball screw is rotationally driven by the servo motors 48, 48, the head 44 is reciprocated along the linear guides 46, 46 in the range between the upstream side and the downstream side of the stacking position 12. Therefore, the end of the intermediate film 16 is held by the film chucks 38, 38... Downstream of the stacking position 12 as shown in FIG. 1, and then the head 44 is moved upstream of the stacking position 12 as shown in FIG. As a result, the intermediate film 16 is rewound from the roll 42 and supplied onto the first glass plate G1 as shown in FIG.

  As shown in FIG. 1, the cutter 40A is supported by a linear guide (not shown) provided in the head 44 so as to be movable along the head 44, that is, in a direction orthogonal to the longitudinal direction of the belt-like intermediate film 16. . The cutter 40 </ b> A is screwed into a ball screw 52 that is rotationally driven by a servo motor 50 fixed to the end of the head 44. Thereby, when the ball screw 52 is rotationally driven by the servo motor 50, the cutter 40A is reciprocated in the orthogonal direction along the linear guide. By this cutter moving operation, the intermediate film 16 rewound by the film chucks 38, 38... Is separated from the roll 42 and supplied onto the first glass plate G1.

  And the upstream edge part of the intermediate film 16 is hold | maintained by the film clamps 54, 54 ... installed in the upstream of the lamination position 12. FIG. When the upstream end of the intermediate film 16 is held by the film clamps 54, 54..., The holding of the intermediate film 16 by the film chucks 38, 38... Is released, and the head 44 returns from the upstream position to the downstream position. Subsequent to this moving operation, the second glass plate G2 positioned at the positioning position 30 is transported to the stacking position 12 by the transport device 14, and the edges are aligned on the intermediate film 16 on the first glass plate G1. Laminated. Thereafter, trimming of the intermediate film 16 by the cutting device 20 is started.

  The cutting device 20 includes long-side trimming cutters 56 and 56 and short-side trimming cutters 40A and 40B. That is, the cutter 40A is also used as the cutting cutter 40A, and is moved along the head 44 to cut the film piece of the intermediate film 16 protruding from the short side of the laminated glass. The cutter 40B is driven by a drive mechanism having the same structure as that of the cutter 40A, but the direction of the blade is set in reverse.

  The trimming cutters 56 and 56 are provided on the head 44 and are spaced apart at positions set according to the width dimension of the laminated glass and the trimming amount of the intermediate film 16. As a result, when the head 44 moves along the linear guides 46, 46, the film pieces of the intermediate film 16 protruding from both long sides of the laminated glass are simultaneously cut.

  FIG. 6 is a plan view schematically showing the laminated glass 58 before trimming, and FIG. 7 is an explanatory diagram showing the directions of division and trimming with arrows (1) to (4). Arrows (1) to (4) also indicate the order of division and trimming.

  An arrow (1) in FIG. 7 indicates an operation of dividing one sheet of the intermediate film 16 from the roll 42 by the cutter 40A, and an arrow (2) indicates a short downstream side of the laminated glass 58 on the downstream side of the lamination position 12. The operation | movement which cut | disconnects the film piece 17A of the intermediate film 16 which protruded from the edge | side with the cutter 40B is shown. Further, the arrow (3) indicates that the film pieces 17B and 17B of the intermediate film 16 protruding from both long sides of the laminated glass 58 by the head 44 moving from the downstream side to the upstream side of the stacking position 12 are trimmed by the cutting cutter 56, 56 shows the operation of cutting simultaneously. Further, an arrow (4) indicates an operation of cutting the film piece 17C of the intermediate film 16 protruding from the upstream short side of the laminated glass 58 by the cutter 40A on the upstream side of the stacking position 12.

  FIG. 8 is a perspective view showing a drive mechanism of the trimming cutter 56.

  The trimming cutter 56 is rotatably supported on a plate 60 fixed to the head 44 via a shaft 62. The shaft 62 is fixed to a block 68 fixed to the tip of the rod 66 of the air cylinder 64. Further, an air cylinder 72 with a rod 70 facing upward is connected to the air cylinder 64, and the rod 70 is swingably attached to the plate 60 via a shaft 74.

  FIG. 8 shows a state where the two rods 66 and 70 are both extended and the cutting edge 56A of the trimming cutter 56 is retracted in the horizontal direction. In this state, since the cutting edge 56A is retracted from the intermediate film 16, the intermediate film 16 is not cut. When the two rods 66 and 70 are contracted together, the shaft 62 rotates a predetermined angle, for example, 90 degrees in the clockwise direction. Therefore, as shown in FIG. 9, the trimming cutter 56 is rotated 90 degrees clockwise from the retracted position indicated by the two-dot chain line to change the attitude to the cutting start position indicated by the solid line (the angle of the blade edge 56A of the trimming cutter 56 is changed). Hereinafter, it is simply referred to as an angle of the cutter 56. The same applies to the cutters 40A and 40B). This cutting start posture is the bottom dead center position where the rotational force of the trimming cutter 56 is efficiently transmitted from the cutting edge 56A to the end of the intermediate film 16, so that the cutting by the cutting edge 56A can be reliably attached to the end of the intermediate film 16. However, if it is 80-100 degrees, it can cut reliably. On the other hand, when only one of the two rods 66 and 70 is contracted, the trimming cutter 56 is rotated by a predetermined angle, for example, 45 degrees clockwise from the retracted position shown by the two-dot chain line in FIG. The posture is changed to a cutting posture indicated by a solid line. The trimming cutter 56 is run while maintaining this cutting posture, and the membrane side 17B shown in FIG. 7 is cut.

  When the angle θ of the trimming cutter 56 with respect to the intermediate film 16 at the time of cutting is less than 30 degrees, the force of the trimming cutter 56 cannot be effectively transmitted to the intermediate film 16, and the intermediate film 16 escapes from the trimming cutter 56. Also, if the angle θ exceeds 50 degrees, the pressing force acts on the intermediate film 16 more than the cutting force, so that it becomes difficult to cut the intermediate film 16 smoothly. Therefore, the angle θ of the trimming cutter 56 with respect to the intermediate film 16 at the time of cutting is set in the range of 30 degrees to 50 degrees.

  In the above-described embodiment, the driving mechanism of the trimming cutter 56 has been described. However, the driving mechanisms of the cutters 40A and 40B are generally the same. However, in the case of the cutters 40A and 40B, the cutting direction is changed by 180 degrees as shown by the arrows (2) and (4) in FIG. 7, so the two cutters 40A and 40B are provided according to the traveling direction. It has been. Instead of providing two cutters, a reversing mechanism for reversing the posture of one cutter 40A by 180 degrees may be provided. Further, the cutters 40A, 40B, and 56 at the time of trimming run with an interval of about 0.5 to 1.0 mm (usually 0.5 mm) from the laminated glass 58 so as not to contact the end face of the laminated glass 58. Is set to This is because the laminated glass 58 is non-chamfered glass, and when the cutters 40A, 40B, and 56 come into contact with the laminated glass 58, the laminated glass 58 is damaged as a chipping. Further, a motor or a rotary actuator may be applied as a driving means for rotating the cutters 40A, 40B, 56.

  Incidentally, at the stacking position 12 shown in FIG. 1, a plate 76 for supporting the film piece 17B cut by the trimming cutter 56 as shown in FIG. 11, and a bowl-shaped receiving member for collecting the cut film piece 17B. 78.

  The plate 76 is disposed along both the membrane pieces 17B and 17B shown in FIG. 7, and is fixed to the shaft 80 shown in FIG. 11, and is shown by a support posture shown by a solid line and a two-dot chain line by the rotation of the shaft 80. The posture is changed to the sliding posture. That is, when the membrane piece 17B is cut, the support posture is indicated by a solid line, and the membrane piece 17B is stably cut while being supported by the plate 76. After the cutting, if the plate 76 is tilted to change to the sliding posture shown by the two-dot chain line, the cut film piece 17B slides down on the plate 76 and falls on the receiving member 78, so that it is reliably recovered. A groove 82 into which the trimming cutter 56 is inserted is formed between the plate 76 and the long edge of the laminated glass 58, and the trimming cutter 56 travels along the groove 82 to cut the film piece 17B. To do. Thereby, the cutting by the trimming cutter 56 is ensured.

  The plate 76 is also provided on the short side upstream and downstream of the laminated glass 58. Further, the groove 82 may be formed directly on the plate 76.

  On the other hand, the end on the roll 42 side of the intermediate film 16 cut by the cutting cutter 40A in FIG. 1 is left with a curl because the intermediate film 16 is originally wound in a roll shape. Due to the positional deviation from 38, 38, etc., there arises a problem that the film chucks 38, 38, etc. cannot be held at the next rewinding.

  Therefore, according to the trimming apparatus 10 of the embodiment, the end of the intermediate film 16 on the roll 42 side is pressed by the pair of press plates 84 and 86 shown in FIG. ing. The press plate 84 is fixed at a position below the intermediate film 16 rewound from the roll 42. On the other hand, the press plate 86 is disposed above the intermediate film 16 and is configured to be freely raised and lowered by shafts 88 and 88 at both ends. The press plate 86 is erected and retracted from the intermediate film 16 when the intermediate film 16 is rewound, and when curling wrinkles are corrected. The end portion of the intermediate film 16 that has been rolled up is pressed with the press plate 84. At this time, since the end portion with the curl is rewound upstream from the position of the plate 84, when correcting the curl, the roll 42 is reversely rotated by the roll drive motor 43, and the intermediate film 16 is rotated. This is carried out by winding up the end of this to the position of the press plate 84. Further, when polyvinyl butyral is used as the intermediate film 16, a heater 90 for heating the end portion is provided, and the end portion is heated by this heater 90 at 18 to 27 ° C. for 5 to 15 seconds, thereby improving curling habit. It can be corrected.

  As shown in FIG. 12, the roll 42 is installed on the upper floor 98 partitioned from the lower floor 96 of the stacking position 12 by the partition plates 92 and 94 (see FIG. 2), and the rewound intermediate film 16 is the partition plate 92. Is supplied to the lower floor 96 through the slit 100 between the partition plate 94 and the partition plate 94. When polyvinyl butyral is used as the intermediate film 16, the upper floor 98 is maintained at a temperature of 6 to 14 ° C. and a humidity of 20 to 30 in order to maintain the predetermined flexibility and humidity suitable for the cutting and matching processing conditions of the intermediate film 16. It is preferable to control the air conditioning to%. Similarly, the lower floor 96 where the laminating process is performed is preferably air-conditioned at, for example, a temperature of 18 to 24 ° C. and a humidity of 25 to 35%. Therefore, it is preferable that the end portion of the roll 42 in which the curl is corrected is not wound on the lower floor 96 but is wound around the roll 42 again and held in the atmosphere of the upper floor 98. Furthermore, by installing the roll 42 on the upper floor 98, the space above the stacking position 12 is effectively used, so that the production line can be shortened.

  By the way, when the intermediate film 16 being unwound is loosened, the intermediate film 16 is supplied while being rubbed against the first glass plate G1, so that a defect due to the film occurs. In order to solve this problem, it is necessary to rewind the intermediate film 16 from the roll 42 while applying a predetermined tension to the intermediate film 16.

  As an achievement means, tension is applied to the intermediate film 16 by synchronously controlling the rewinding speed of the roll driving motor 43 that drives the roll 42 and the rewinding speed of the film chucks 38, 38.

  In the embodiment, as shown in FIG. 12, a tension adjusting roller 102 is provided which contacts the intermediate film 16 being rewound and whose position is displaced by tension fluctuation. That is, both ends of the roller 102 are rotatably supported by the bracket 104, and the bracket 104 is swingably supported by the shaft 106. Therefore, when the roller 102 receives a variation in tension from the intermediate film 16, the roller 102 swings about the shaft 106. A potentiometer 108 for detecting the displacement of the roller 102 is attached to the bracket 104, and the running speed of the roll drive motor 43 and the head 44 is controlled by a control unit (not shown) so that the detection output from the potentiometer 108 is constant. Feedback controlled. Further, when the intermediate film 16 is rewound, the first glass plate G1 is retracted downward from the intermediate film 16 as shown in FIG. 4 so that the supplied intermediate film 16 does not contact the surface of the first glass plate G1. In addition, the first glass plate G1 is lifted by the lift device 110 and the intermediate film 16 is picked up when the necessary length is rewound. Thereby, the problem of rubbing can be completely solved.

  As shown in FIG. 1, the lift device 110 includes a frame 112 that supports the lower surface of the first glass plate G <b> 1 and a ball jack device (see FIG. 2) 114 that moves the frame 112 up and down. It is preferable to provide a flexible member such as a resin on the glass contact surface of the frame 112 in order to prevent the first glass plate G1 from being damaged. Further, the roller conveyor 32 itself may be directly driven up and down without providing the lift device 110 individually as in the embodiment.

  Next, the operation of the trimming apparatus 10 configured as described above will be described.

  (1) At the positioning position 30 shown in FIG. 1, the first glass plate G1 that has passed through the previous cleaning / drying step is positioned at a predetermined position.

  (2) The first glass plate G1 is sucked and held by the transfer unit 26 in FIG. 2, and the first glass plate G1 is conveyed from the positioning position 30 to the stacking position 12 as shown in FIG.

  (3) The transfer unit 26 returns to the original position above the positioning position 30 as shown in FIG.

  (4) The roll 42 on the upper floor 96 rotates to start supplying the intermediate film 16.

  (5) As shown in FIG. 4, the film chuck 38 waiting on the downstream side of the stacking position 12 holds the upstream end of the intermediate film 16.

  (6) The head 44 on which the film chuck 38 is mounted moves to the upstream side, pulls the intermediate film 16 and rewinds the intermediate film 16 wound in a roll shape, and the necessary length (length of one sheet) : For example, the first glass plate size +40 mm) The head 44 stops at the stop end when it is rewound.

  (7) As shown in FIG. 5, the first glass plate G1 is raised by a predetermined amount by the lift device 110 at the stacking position 12 and the intermediate film 16 rewound by the film chuck 38 is received.

  (8) As shown in FIG. 5, the film chuck 38 descends in the direction of the arrow, and stops descending when it is located at the upper surface level of the first glass plate G1.

  (9) The film clamp 54 positioned at the upstream end of the first glass plate G1 holds the upstream end of the intermediate film 16, and then the film chuck 38 opens the upstream end of the intermediate film 16.

  (10) The film chuck 38 rises from the intermediate film 16.

  (11) The head 44 of the film chuck 38 moves to the downstream end side of the first glass plate G1, which is the roll cut position.

  (12) The cutter 40 </ b> A provided in the head 44 travels in the width direction of the intermediate film 16, cuts the rewound intermediate film 16 by a necessary length, and divides it from the roll 42.

  (13) The head 44 returns to the standby position on the downstream side of the first glass plate G1, and the roll 42 is reversely rotated to correct the curl at the end by the press plates 86 and 88 and the heater 90.

  (14) The first glass plate G1 is lowered by the lift device 110 and returned to the initial position.

  (15) After the second glass plate G2 previously positioned at the positioning position 30 is sucked and held by the transfer unit 26, the second glass plate G2 is transported toward the stacking position 12, and on the first glass plate G1 as shown in FIG. It is laminated on the intermediate film 16. Hereinafter, this laminate is referred to as “laminated glass 58”.

  (16) The laminated glass 58 is raised by a predetermined amount by the lift device 110 as shown in FIG.

  (17) The head 44 moves to the short side trimming start position on the downstream side of the laminated glass 58.

  (18) The short side trimming on the downstream side of the laminated glass 58 is performed by the cutter 40B as shown in FIG. At this time, the short-side film piece 17A to be trimmed is supported by the plate 76, and the film piece 17A is cut by the cutter 40B traveling in the (2) direction (see FIG. 7) along the groove 82.

  (19) The short-side membrane piece 17A that has been cut is recovered by tilting the plate 76 and sliding it from the plate 76 onto the receiving member 78.

  (20) The head 44 moves to the long side trimming start position on the downstream side of the laminated glass 58.

  (21) Trimming both long sides of the laminated glass 58 is performed by the pair of cutters 56. At this time, the long film pieces 17B and 17B to be trimmed are supported by the plate 76 as shown in FIG. 11, and the cutter 56 travels in the direction (3) (see FIG. 7) along the groove 82. 17B and 17B are cut.

  (22) The two long-side film pieces 17B and 17B that have been cut are collected by tilting the plate 76 and sliding it from the plate 76 onto the receiving member 78.

  (23) The head 44 moves to the short side trimming start position on the upstream side of the laminated glass 58.

  (24) The short side trimming on the upstream side of the laminated glass 58 is performed by the cutter 40A as shown in FIG. The short-side film piece 17C to be trimmed is supported by the plate 76, and the film piece 17C is cut by the cutter 40A traveling in the (4) direction (see FIG. 7) along the groove 82.

  (25) The cut short film piece 17C is recovered by tilting the plate 76 and sliding it from the plate 76 onto the receiving member 78.

  (26) The head 44 is moved to the original standby position.

  (27) As shown in FIG. 17, the laminated glass is lowered by the lift device 110 and placed on the roller conveyor 32.

  (28) As shown by the arrow in FIG. 17, the laminated glass is conveyed by the roller conveyor 32 toward the pre-compression bonding apparatus in the next process.

  In the trimming of the intermediate film 16 in the above (18), (21), and (24), the angle when the cutters 40A, 40B, 56 enter is 80 to 100 degrees, and the cutters 40A, 40B, 56 during traveling The angle is 30 to 50 degrees, and the angles of the cutters 40A, 40B, and 56 during standby are substantially 0 degrees.

  The above is the procedure for assembling the laminated glass at the same lamination position 12 and trimming the plastic intermediate film protruding from the edge of the laminated glass assembly.

  According to the trimming apparatus 10 of the embodiment, the cutting by the cutter 40A described in the step (12), the trimming by the cutter 40B described in the step (18), the trimming by the pair of cutters 56 described in the step (21), And in the trimming by the cutter 40A described in the step (24), the angle when the cutters 40A, 40B, 56 enter the intermediate film 16 and the film pieces 17A, 17B, 17C when making the cut, and the intermediate film when cutting The angle at which the cutters 40A, 40B, and 56 are traveling with respect to the film 16 and the film pieces 17A, 17B, and 17C is changed to cut the intermediate film 16 and the film pieces 17A, 17B, and 17C.

  Thus, the cutters 40A, 40B, and 56 can be set to optimum angles by making it possible to change the angles of the cutters 40A, 40B, and 56 when entering and cutting the intermediate film 16 and the film pieces 17A, 17B, and 17C. . Thereby, the intermediate film 16 and the film pieces 17A, 17B, and 17C can be cut smoothly.

  Further, according to the trimming device 10, the angle of the cutters 40A, 40B, 56 is changed by the rotation mechanism, so that the angle of the cutter can be easily changed.

  Furthermore, according to the trimming device 10, since the angle when the cutters 40A, 40B, 56 enter is set to 80 to 100 degrees, the end of the intermediate film can be cut with certainty, and at the time of cutting Since the angle of the cutter is 30 degrees to 50 degrees, the intermediate film 16 and the film pieces 17A, 17B, and 17C can be cut smoothly and reliably.

  Furthermore, according to the trimming apparatus 10, the film pieces 17A, 17B, and 17C cut by the cutters 40A, 40B, and 56 are cut while being supported by the plate 76, and the cut film pieces 17A, 17B, and 17C are cut. Since the plate 76 is caused to slide down and collected in the receiving member 78, the cut film pieces 17A, 17B, and 17C can be reliably collected.

  In addition, although embodiment demonstrated the laminated glass for window glass of a building, it is not limited to this, It can apply also to the manufacturing apparatus of the laminated glass of the windshield for motor vehicles. Moreover, the intermediate film 16 supplied on the 1st glass plate G1 is not limited to 1 sheet | seat, Two or more sheets may be sufficient.

  Furthermore, in the embodiment, the cutting device that cuts the interlayer film for laminated glass is exemplified, but the present invention is not limited to this, and can be applied to a cutting device that cuts a flexible film, for example, various plastic films. .

The perspective view which showed the whole structure of the trimming device of embodiment It is a side view of the trimming apparatus shown in FIG. It is a side view of the trimming apparatus shown in FIG. It is a side view of the trimming apparatus shown in FIG. It is a side view of the trimming apparatus shown in FIG. Explanatory drawing which showed the plane of the laminated glass typically Explanatory drawing which showed the trimming direction and order by the trimming apparatus shown in FIG. Perspective view showing structure of trimming cutter Explanatory drawing of cutting operation by trimming cutter Cutting operation explanatory diagram with trimming cutter The perspective view which showed the plate for membrane piece support, and the receiving member for membrane piece collection | recovery The perspective view which showed the intermediate film supply apparatus and the edge part press apparatus It is a side view of the trimming apparatus shown in FIG. It is a side view of the trimming apparatus shown in FIG. The perspective view which showed the plate for membrane piece support, and the receiving member for membrane piece collection | recovery The perspective view which showed the plate for membrane piece support, and the receiving member for membrane piece collection | recovery It is a side view of the trimming apparatus shown in FIG.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 10 ... Trimming apparatus, 12 ... Laminating position, 14 ... Conveying apparatus, 16 ... Intermediate film, 18 ... Feeding device, 20 ... Cutting device, 26 ... Transfer unit, 30 ... Positioning position, 32 ... Roller conveyor, 34 ... Roller conveyor 38 ... Film chuck, 40 ... Cutter, 42 ... Roll, 44 ... Head, 54 ... Film clamp, 56 ... Trimming cutter, 58 ... Laminated glass, 76 ... Plate, 78 ... Receiving member, 82 ... Groove, 84 ... Press plate 86 ... Press plate, 90 ... Heater, 102 ... Roller, 110 ... Lift device, G1 ... First glass plate, G2 ... Second glass plate

Claims (10)

  In the film cutting apparatus provided with the cutter for cutting the flexible film, the blade edge of the cutter is an angle at the time of entering the flexible film surface when cutting into the flexible film, and when cutting the flexible film. An apparatus for cutting a flexible film, characterized in that the angle during travel relative to the flexible film surface can be changed.   2. The cutter according to claim 1, wherein the cutter is rotated by a rotation mechanism at the time of entering and traveling, and an angle of a cutter blade edge with respect to the flexible film surface is set to a predetermined angle. Flexible film cutting device.   The flexible film cutting device according to claim 1, wherein an angle of the cutter blade tip at the time of entering is at least 80 degrees to 100 degrees with respect to the flexible film surface.   4. The flexibility according to claim 1, wherein the traveling angle of the cutter blade edge is at least 30 to 50 degrees with respect to the flexible film surface. 5. Film cutting device.   The said flexible film cutting device is used for the apparatus which cut | disconnects the film | membrane piece of the intermediate film which protruded from the edge part between two glass plates in a laminated glass production line. The flexible film cutting device as described in any one of these.   In the film cutting method for cutting a flexible film, the cutting edge of a cutter for cutting the flexible film includes an angle at the time of entering the flexible film surface when cutting the flexible film, and the flexible film is cut. A cutting method for a flexible film, characterized in that the flexible film is cut by changing the angle at the time of running with respect to the flexible film surface.   7. The cutter according to claim 6, wherein the cutter is rotated by a rotation mechanism at the time of entering and traveling, and an angle of a cutter blade edge with respect to the flexible film surface is set to a predetermined angle. Cutting method of flexible film.   The method for cutting a flexible film according to claim 6 or 7, wherein an angle at the time of entering the blade edge of the cutter is at least 80 to 100 degrees with respect to the surface of the flexible film.   The flexibility according to any one of claims 6, 7 and 8, wherein an angle of the cutter blade tip during the traveling is at least 30 to 50 degrees with respect to the flexible film surface. How to cut the film.   The said flexible film cutting method is used for the method of cut | disconnecting the film | membrane piece of the intermediate film which protruded from the edge part between two glass plates in a laminated glass production line. The flexible film cutting method as described in any one of these.

Images