JPH09201794A - Automatic edge trimming machine for laminated glass interlayer - Google Patents

Abstract

PROBLEM TO BE SOLVED: To eliminate the defective of edge trimming in an interlayer of a laminated glass, and to manage with one edge trimming. SOLUTION: A cutting device body 20 is installed on a robot 18, the cutting device body 20 is provided with a blade cutter 36, a pair of trapeziform rollers 38, and a follow-up mechanism which make the rollers 38 to followed the bending shape of a laminated glass 16, and the edge trimming is perform in such a state that the upper and lower parts of the periphery part of the laminated glass 16 are made to be clamped. Moreover, a virtual cutting position is set inside of a periphery 16A of the laminated glass 16 by a teaching mechanism of the robot 18.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an automatic edge trimming device for a laminated glass interlayer film, and more particularly to a laminated glass having an interlayer film sandwiched between two bent flat glass sheets for use in windshields for automobiles. In the above, the present invention relates to an automatic edge-cutting device for a laminated glass interlayer film, which automatically cuts the edge of the interlayer film protruding from the peripheral edge of the laminated glass.

[0002]

2. Description of the Related Art As a front window glass for an automobile, a laminated glass is used in which an interlayer film is sandwiched between two bent sheet glasses bent in the shape of the front window. When manufacturing this laminated glass, if the size of the plate glass and the size of the interlayer film are the same, high-precision positioning is required in the bonding step.
A size that protrudes up to -50 mm is used. For this reason, the so-called "ears", which is the unnecessary portion of the intermediate film protruding from the peripheral edge of the laminated glass in an uncompressed state in which the intermediate film is sandwiched between two plate glasses, is conventionally manually operated by a worker with a razor. I was disconnected.

[0003]

However, in the conventional manual cutting of the intermediate film by the worker, the intermediate film is a flexible body having elasticity, so that the intermediate film is cut when the razor becomes unsharp. At that time, the lamella is cut while pulling the intermediate film. As a result, after cutting, the interlayer film enters inside the peripheral edge of the laminated glass, resulting in defective edge cutting. For this reason, in order to prevent edge-cutting defects, it is usual for an operator to perform edge-cutting leaving 0.5 mm to 1 mm of the cutting margin of the interlayer film. There is a problem in work efficiency because it has to be performed.

Further, the manual work with the razor has a problem that a specialized worker is required because the skill of the worker is required. Therefore, JP-A-61-297009 and JP-A-63-300889 disclose automatic edge-cutting devices that do not rely on skilled workers for this edge-cutting. It is difficult to perform edge cutting with a predetermined accuracy on a normally laminated laminated glass by a machine that simply causes a cutter to automatically follow the peripheral edge of the laminated glass. Therefore, in the above publication, a mechanism for rotating the cutter portion according to the curvature of the laminated glass is provided so that the blade of the cutter faces the end surface of the laminated glass in parallel.

However, since these mechanisms are complicated, their control is difficult. As a result, the tactile cutting work is increased and the work efficiency is deteriorated. The present invention has been made in view of such circumstances, and can automatically cut the edge of the interlayer film protruding from the peripheral edge of the laminated glass to save labor, and further, the edge cutting defect occurs as in the past. It is an object of the present invention to provide an automatic edge-cutting device for a laminated glass interlayer film that does not need to be cut and can be cut once.

[0006]

In order to achieve the above-mentioned object, the present invention cuts off the ears of the intermediate film protruding from the peripheral edge of the laminated glass formed by sandwiching the intermediate film between two sheet glasses. An automatic edge cutting device for laminated glass intermediate film, which is supported by a robot arm and moves along the peripheral edge of the laminated glass by an operating mechanism of the robot, and a cutting device main body which is provided in the cutting device main body. A cutting tool for cutting the edge of the film, and a pair provided near the cutting tool of the cutting device main body, and clamping force is followed according to the shape of the laminated glass surface to clamp the vicinity of the peripheral edge of the laminated glass from above and below. Roller and a teaching mechanism for teaching the cutting position of the intermediate film to be cut by the cutting tool. While flop, characterized by cutting the Techingu been cut position of the intermediate layer in the Techingu mechanism by the cutting tool.

According to the present invention, the cutting device main body is attached to the robot, and the pair of rollers provided on the cutting device main body are made to follow the shape of the laminated glass surface while the upper and lower edges of the peripheral edge of the laminated glass are clamped. It was configured so that the intermediate film was not pulled by the cutting tool when the intermediate film was cut by the cutting tool. In addition, since the teaching mechanism that teaches the cutting position of the cutting tool to the robot motion mechanism is provided, the cutting position of the interlayer film can be accurately cut, and only one edge cutting is required.

[0008]

BEST MODE FOR CARRYING OUT THE INVENTION Preferred embodiments of an automatic edge trimming device for laminated glass interlayer according to the present invention will be described in detail below with reference to the accompanying drawings. FIG. 1 is a perspective view illustrating an overall configuration of an automatic edge-cutting device 10 according to the present invention.
A laminated glass 16 on which the intermediate film 14 is cut off by the automatic edge cutting device 10 is placed on 2. This laminated glass 16
Is formed by sandwiching the intermediate film 14 between two bent plate glasses.

The automatic edge cutting device 10 is an industrial robot 1.
8 and a cutting device body 20 that is moved along the peripheral edge of the laminated glass 16 by the industrial robot 18. The industrial robot 18 includes a base 22, a rotary unit 24 that rotates in a horizontal plane direction with respect to the base 22, and a rotary unit 24.
An extendable and retractable arm 28 that rotates in a vertical plane direction around a rotating shaft 26 provided at the upper end of the arm 28, and a swinging arm that is provided at the tip of the arm 28 and swings in the vertical plane direction of the axis of the arm 28. 30 and a connecting portion 32 that is supported by the lower end of the swing arm 30 and that rotates in the horizontal plane direction constitute an operating mechanism, and the connecting portion 32 supports the cutting device body 20. In addition, the controller (not shown) of the robot 18 has a peripheral edge of the laminated glass 16 (referred to as an edge of the laminated glass) based on the positional relationship between the robot 18 and the mounting table 12.
The position coordinates are previously input, and the controller moves the cutting device body 20 with reference to these position coordinates.
As a result, the cutting device body 20 is attached to the mounting table 12 by the suction cup 3
It is possible to move along the peripheral edge 16A of the laminated glass 16 which is adsorbed and fixed via 4, 34 ...

Further, a teaching mechanism is incorporated in the controller, so that the moving path of the cutting device body 20 that moves along the peripheral edge 16A of the laminated glass 16, that is, the cutting position of the blade cutter 36 described later can be taught. It is like this. As shown in FIG. 2, the cutting device body 20 mainly includes the peripheral edge 1 of the laminated glass 16.
A blade cutter 36 that is a cutting tool for cutting the ear 14A of the intermediate film 14 protruding from 6A and the laminated glass 16
A pair of rollers 38, 38 for clamping the vicinity of the peripheral edge 16A from above and below are provided.

The blade cutter 36 is formed in the shape of a rectangular thin blade, and the upper and lower ends thereof have an upper projecting portion 20A and a lower projecting portion 20B of the cutting device body 20 having a U-shaped cross section.
A pair of upper and lower cutter mounting jigs 40,
It is detachably held by the chuck portions 40A, 40A of 40. Further, the blade cutter 36 can be tensioned with a constant tension by rotating the tension adjusting portion 40B of the cutter mounting jig 40 and moving the chuck portion 40A in the vertical direction. In this state, the blade cutter 36 is used. .

The blade cutter 36 is formed in a thin blade shape with a blade 36A attached to one edge in the rectangular longitudinal direction. Further, when cutting the edge 14A of the intermediate film 14 protruding from the peripheral edge of the laminated glass 16 with the blade cutter 36, as shown in FIG.
Since the blade cutter 36 is used in a state of being pressed with an inclination angle θ with respect to A, it is necessary that the blade cutter 36 has elasticity so that the blade cutter 36 can be warped by the reaction force of the pressing force. As a material having such elasticity, a tough material such as carbon steel is preferable. The inclination angle θ can be changed by adjusting the orientation of the cutter mounting jig 40.

As shown in FIG. 2, the pair of rollers 3
Reference numerals 8 and 38 denote slide rods 4 of a pair of clamp cylinders 42 and 42, which are provided so as to face the tips of the upper protruding portion 20A and the lower protruding portion 20B of the cutting device body 20, respectively.
It is rotatably supported at the tips of 4, 44. 4, the pair of clamp cylinders 42, 42 are provided with slide rods 44, 44 for sliding the rollers 38, 38 so as to move toward and away from each other on the same slide line.
Reference numerals 4 and 44 penetrate the inside of the rod cylinders 46 and 46 and the guide holding portions 48 and 48 provided at the tips of the rod cylinders, and further support the rollers 38 and 38 via the flanges 50 and 50. Each of the flanges 50, 50 has a pair of guide bars 5
One end of 2, 52 is fixed, and the guide rods 52, 52 slide by being guided by vertical guide holes (not shown) formed in the guide holding portions 48, 48. As a result, the rollers 38 and 38 slide properly on the slide track.
Further, the air paths (not shown) of the respective clamp cylinders 42, 42 are arranged such that when the upper and lower edges of the peripheral edge portion 16A of the laminated glass 16 are clamped by the pair of rollers 38, 38, the return side port (not shown) is opened to the atmosphere. A follow-up mechanism that can follow the bent shape of the laminated glass 16 is formed by opening it to the left.

The roller 38, as shown in FIG.
The tip end of the slide rod 44 is rotatably supported by a rotary shaft 54 that is orthogonally supported by the slide rod 44 via a bearing 56, and the shape of the roller 38 is the blade cutter 36 side (right side in FIG. 5). ) Is formed in a trapezoidal shape with a diameter larger than the diameter on the opposite side. By thus forming the roller 38 into a trapezoidal shape, as shown in FIG. 6, even if the peripheral edge portion 16A of the laminated glass 16 has a curved shape,
The pressing position P _{1 of the} roller 38 pressing the upper surface of the peripheral edge portion 16A and the pressing position P _{2 of the} roller 38 pressing the lower surface thereof.
Can be positioned on the same vertical line 56 without being displaced through the laminated glass 16. As a result, the clamping force is increased, and the laminated glass 16 can be reliably clamped so that the two glass sheets of the laminated glass 16 in the non-pressed state do not shift when clamped or the interlayer film does not shift. . Further, by forming the roller 38 into a trapezoidal shape having a large diameter on the blade cutter 36 side, it is possible to clamp the peripheral edge portion 16A of the laminated glass 16 closer to the blade cutter 36. As a result, the clamp position of the roller 38 and the cutting position of the ear 14A of the intermediate film 14 by the blade cutter 36 can be made extremely close to each other.

Incidentally, in the case of the cylindrical rollers 58, 58, as shown in FIG. 7, the clamp positions P ₃ , P ₄ are displaced, so that the clamping force is weakened and the laminated glass 16 is easily displaced. Become. 8 and 9 are accessory devices of the cutting device body 20 and show an ear scrap collecting device 60 that collects the ears of the intermediate film 14 cut by the blade cutter 36 so as not to scatter.

FIG. 8 shows a vacuum type ear dust collecting device 6.
0, and a cradle 62 that receives the ear scraps is detachably attached to the lower end of the cutting device body 20. Further, a suction hood 64 that is open to the blade cutter 36 side is provided on one side of the cradle 62, and a vacuum pipe 66 is connected to the suction hood 64. As a result, the string-shaped ear debris cut by the blade cutter 36 is sucked from the suction hood 64, carried in the vacuum pipe 66, and sent to, for example, the ear debris recovery tank.

FIG. 9 shows a bucket type ear dust collecting apparatus 60.
The cutting device body 20 includes a pedestal 68 and a side plate 70.
The bucket 72 is detachably attached, the side plate 70 has a recovery window, and the recovery window is provided with an openable / closable lid 76 supported by hinges 74, 74. As a result, the cord-shaped ear scraps cut by the blade cutter 36 are accumulated on the receiving base 68, and after the accumulation is made to some extent, the lid 76 is opened and collected.

Next, a method of cutting the edge of the interlayer film protruding from the laminated glass with the automatic edge cutting device configured as described above will be described. Before starting cutting, the apparent cutting position C ₁ of the blade cutter 36 is changed by the teaching mechanism.
As shown in FIG. 3, it is set to be 0.5 mm inside the peripheral edge 16A of the laminated glass 16 and the inclination angle θ of the blade cutter with respect to the peripheral edge 16A of the laminated glass 16 is set to 15 °.

Next, the robot 18 is actuated to move the cutting device body 20 along the peripheral edge 16A of the laminated glass 16 while the blade cutter 36 is used.
The ear 14A of the intermediate film 14 that protrudes from the edge is cut off.
In this cutting, since the pair of rollers 38, 38 are formed in a trapezoidal shape and have a follow-up mechanism by a clamp cylinder, even if the peripheral edge of the laminated glass 16 is curved, the peripheral edge of the laminated glass 16 is Moreover, the vicinity of the cutting position of the blade cutter 36 can be clamped from above and below with a constant pressure. Further, the roller 38 is attached to the blade cutter 3
By forming a trapezoidal shape with a large diameter on the 6 side, the roller 38
Of the intermediate film 14 by the clamp position of the blade and the blade cutter 36
The cutting position of the ear 14A can be made as close as possible. As a result, the sharpness of the blade cutter 36 deteriorates, and even when a force in the direction of pulling the intermediate film 14 acts on the blade cutter 36 when the ear 14A of the intermediate film 14 is cut, the intermediate film 14 stretches. There is no disconnection in the state. Therefore, after cutting, the intermediate film 14 has the laminated glass 1
It is possible to prevent the edge cutting defect from being caused by entering the inside of the peripheral edge 16 </ b> A of 6.

Further, as shown in FIG. 3, the cutting position C ₁ of the blade cutter 36 is set to the peripheral edge 16A of the laminated glass 16.
Since the blade cutter 36 is set to be 0.5 mm inward, the blade cutter 36 is pressed against the peripheral edge 16A of the laminated glass 16 and cuts the ear 14A in a warped state by its reaction force. Thereby, for example, the mounting position of the laminated glass 16 mounted on the mounting table 12, the robot 18, and the mounting table 1
Even if there is some deviation from the reference position coordinates of the laminated glass 16 determined by the relationship with 2, the elasticity of the blade cutter 36 absorbs the deviation. That is, the blade cutter 3
If the mounting position is displaced from the reference position coordinate with respect to 8, the blade cutter 36 is less warped to absorb the displacement, and the mounting position relative to the blade cutter 36 is the reference position coordinate. If there is a deviation in a direction closer to it, the warp of the blade cutter 36 is increased to absorb the deviation. Further, by setting the apparent cutting position C ₁ of the blade cutter 36 to be inside the peripheral edge 16A of the laminated glass 16, the blade cutter 36
Can always cut the edge 14A of the intermediate film 14 with the peripheral edge 16A position of the laminated glass 16 as the actual cutting position C ₂ (see FIG. 3). As a result, unlike the conventional case, it is not necessary to finish cutting again after the laminated glass 16 is pressure-bonded, so that the working efficiency can be significantly improved.

The apparent cutting position C ₁ and the inclination angle θ of the blade cutter 36 can be varied depending on the degree of warpage of the blade cutter 36. Further, in the present embodiment, the curved laminated glass in which the intermediate film is interposed between the two bent plate glasses has been described, but the present invention is not limited to this, and for example, the thickness distribution on the laminated glass surface The same effect can be obtained when the ears of the interlayer film of a certain laminated glass are cut. Further, although the follow-up mechanism of the pair of rollers 38 has been described with the example of the air cylinder, a spring may be used.

[0022]

As described above, according to the automatic edge-cutting device for a laminated glass interlayer according to the present invention, there is no fear of defective cutting, so that the ear can be cut with one cutting without leaving a cutting margin. can do. As a result, it is not necessary to perform the trimming of the finish again after the pressure bonding of the laminated glass as in the conventional case, so that the working efficiency can be significantly improved,
Moreover, the loss rate due to poor cutting can be reduced.

Further, since the trimming can be automatically performed, a skilled worker is not required as in the conventional case, and further, the trimming is not required twice, so that the labor can be saved.

[Brief description of drawings]

FIG. 1 is a perspective view illustrating the overall configuration of an automatic edge trimming device for laminated glass interlayer film according to the present invention.

FIG. 2 is a side view illustrating a cutting device body.

FIG. 3 is an explanatory diagram showing a positional relationship between a laminated glass and a laminated glass when cutting an edge of a laminated glass interlayer film.

FIG. 4 is a side view illustrating a mounting structure of a roller that clamps a laminated glass.

FIG. 5 is a side sectional view illustrating a structure of a roller.

FIG. 6 is an explanatory view for explaining the action of the trapezoidal roller.

FIG. 7 is an explanatory diagram illustrating an operation when the roller has a cylindrical shape.

FIG. 8 is a perspective view illustrating a vacuum type ear dust collecting device.

FIG. 9 is a perspective view illustrating a bucket type ear waste collecting device.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 10 ... Automatic edge cutting device 12 ... Mounting table 14 ... Intermediate film 14A ... Edge of intermediate film 16 ... Laminated glass 16A ... Edge of laminated glass 18 ... Robot 20 ... Cutting device body 36 ... Blade cutter 38 ... Roller 42 ... Clamp cylinder 44 ... slide rod 48 ... guide holding portion 52 ... guide rods 60 ... cutting position C ₂ ... actual cutting position on the ear debris collecting device C ₁ ... apparent

Claims (3)

[Claims] 1. An automatic edge-cutting device for a laminated glass interlayer film, which cuts an edge of the interlayer film protruding from a peripheral edge of the laminated glass, which is formed by sandwiching an interlayer film between two plate glasses, and a robot arm. A cutting device body that is supported by, and moves along the peripheral edge of the laminated glass by the operation mechanism of the robot; a cutting tool that is provided in the cutting device body and cuts the ears of the interlayer; A pair of rollers provided in the vicinity of the cutting tool, which clamp force follows the laminated glass according to the shape of the laminated glass to clamp the vicinity of the periphery of the laminated glass from above and below, and a cutting position of the intermediate film which is cut by the cutting tool. And a teaching mechanism for teaching the., While the clamping mechanism is used to clamp the vicinity of the peripheral edge of the laminated glass with the pair of rollers. The intermediate film automatic trimming apparatus laminated glass intermediate film, which is cut at the cutting tool the cutting position of the. 2. A blade cutter is used as the cutting tool, and the cutting position of the intermediate film is taught to the inside of the peripheral edge of the laminated glass by a predetermined dimension by the teaching mechanism, whereby the blade cutter is attached to the laminated glass. 2. The automatic edge-cutting device for laminated glass interlayer film according to claim 1, wherein the edge of the interlayer film is cut in a state in which the cutting tool is warped by the reaction force by pressing against the peripheral edge. 3. The automatic laminated glass interlayer film according to claim 1, wherein the roller has a trapezoidal cross section in the roller axial direction in which the diameter on the cutting tool side is larger than the diameter on the opposite side. Ear cutting device.