JP2569583B2 - Method and apparatus for arranging heating wires on interlayer film for laminated glass - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to a method and an apparatus for arranging a heating wire on an interlayer film for laminated glass.

[Prior Art] Laminated glass in which a plurality of glass plates are bonded and fixed via a laminated interlayer such as polyvinyl butyral in which a heating wire is disposed in advance is used to prevent fogging of the glass plate surface, ice, frost, etc. Widely used as anti-fog glass for preventing adhesion of glass, as window glass for various traffic vehicles such as automobiles, railways, ships, and airplanes, or as glass attached to openings in buildings and various devices. .

In this case, since the heating wire disposed on the lamination interlayer film has a very small diameter of 5 to 30 μm, a great care must be taken to prevent disconnection or twisting. The operation must be performed while paying, and on the other hand, there are various complications in performing the operation, such as a demand for an orderly and correct arrangement.

Conventionally, such a complicated work of arranging a heating wire is complicated.
It has been carried out by manually fixing the heating wire on the matching intermediate film while heating it, but the work required skill because of the technical difficulty, and the productivity was poor. In particular, when the heating wire is heated after mounting, when the heating wire is to be meandered in a wave shape or the like, with the intention of reducing the perspective distortion of the mating interlayer caused by the temperature gradient around the heating wire, The work of arranging a large number of heating wires in a uniform waveform and adjusting the pitches so as to be parallel with each other involves considerable difficulty.

For this reason, the present applicant has already proposed, for example, a method and an apparatus disclosed in Japanese Patent Publication No. 51-9786 to improve the efficiency of the above operation. According to this, a predetermined voltage is applied between a roll for guiding the heating wire and a pressure roll for bonding the heating wire to the intermediate film, so that the heating wire is energized and heated, while the transfer intermediate in the transfer state is generated. The heating wire was to be pressed against the film by a pressing roll arranged at a fixed position on the film.

[Problems to be Solved by the Invention] However, according to the above-described method and apparatus, a wire bonding mechanism itself including a roll for guiding a heating wire and a pressure bonding roll for aligning the heating wire and pressing against an intermediate film is fixed. It is necessary to move the side of the lamination intermediate film because it is in the state of being placed, and the heating wire is arranged in a free pattern for the lamination intermediate film that is placed in a fixed position at a fixed position I couldn't do that. Also, since the components of the wire bonding mechanism are not in an integrated connection but are independent of each other,
It has been difficult to arrange the components in an accurate positional relationship.

[Object of the Invention] The present invention has been made in view of the above-mentioned problems of the prior art, and an object of the present invention is to integrally form a wire sticking mechanism arranged on a lamination interlayer film and to move the wire bonding mechanism in the horizontal direction. It is an object of the present invention to provide a method and an apparatus in which a heating wire can be arranged in a free pattern with respect to a matching intermediate film placed at a fixed position by freely moving the heating wire.

[Means for Solving the Problems] In order to achieve such an object, the present invention is configured as follows.

That is, in the method of the present invention, the electrode roll that supplies the heating wire to the next step while guiding the heating wire, and the press electrode that presses the supplied heating wire to the mating intermediate film placed at a fixed position can be freely moved in the horizontal direction. While moving in a pattern, the heating wire is energized and heated by applying a predetermined voltage between the electrode roll and the pressing electrode, while the heating wire is aligned by pressing the pressing electrode and pressed against the intermediate film, The open end of the heating wire that is not crimped is characterized in that it is nipped and automatically cut. In addition, the apparatus according to the present invention uses a wire sticking mechanism integrally supported so as to be able to move freely in the horizontal direction via a frame, and guides a heating wire drawn from a number of bobbins arranged separately. And a crimping section that arranges the heating wires supplied through the guide section at a predetermined interval, and allows the crimping to the mating intermediate film by energizing and generating heat between the guide section, There is a feature in the configuration in that the heating wire is formed by a heating wire cutting portion that can cut the heating wire that is not press-bonded while holding the open end thereof.

[Example] Hereinafter, an example of the present invention will be described with reference to the drawings.

FIG. 1 shows an outline of an apparatus as an embodiment provided for carrying out the method of the present invention. A wire sticking mechanism 1 suspended from a main body (not shown) via an arm is provided on the arm. The guide portion 10 is moved through the fixed frame 2.
, The crimping portion 20 and the heating wire cutting portion 30 so as to be integrally formed as a whole. Moreover, the frame 2
The arm is arranged so as to be able to follow the movement when the arm moves in a horizontal free direction via a controlled driving mechanism (not shown) such as a stepping motor.

In the wire bonding mechanism 1 having such a configuration, the guide portion
Reference numeral 10 denotes a pair of support arms 11 fixed to the frame 2 and guide rolls 12 provided between the distal ends of the support arms 11.
And introducing each heating wire 4 wound around a plurality of bobbins 3 rotatably disposed at a constant interval on the frame 2 so as to converge through a guide roll 12.
It comprises an electrode roll 13 that can be energized.
In this case, at the leading end to the guide roll 12, a spacing plate 14 having grooves for separately supporting the heating wires 4 is provided in advance in order to keep the heating wires 4 at a predetermined spacing. It is desirable to keep. In the apparatus of the present invention, it is desirable that a spacing plate 5 is similarly provided in advance near the end of the heating wire 4 from the bobbin 3.

The crimping portion 20 is provided so as to be able to move up and down with respect to a support plate 31 constituting a heating wire cutting portion 30 described later via a guide support member 25 also serving as a support, and Press electrode formed so as to be pressed by the pressing force of the coil spring 21 interposed between the coil spring 21 and the coil spring adjusting screw 24
22 and a guide comb plate 23 for guiding the heating wires 4 separately while maintaining a predetermined interval with respect to the press electrode portion 22. For this reason, the press electrode section 22 is
Through the guide support member 25 that slides along, it is possible to effectively prevent sideways movement or the like and move up and down.

On the other hand, the heating wire cutting unit 30 includes a support plate 31 suspended from the frame 2, a guide rod 32 extending from the support plate 31 in a horizontal direction orthogonal to a direction in which the heating wires 4 are disposed, Through a suitable controlled drive mechanism (not shown) such as a stepping motor, a sliding rod 37 slidably disposed along the guide rod 32 is provided, and is introduced collectively. A base part 33 having a cutter 34 of an appropriate structure in which the heating wire 4 is controlled to be automatically cut by a predetermined control means,
When the heating wire 4 is cut by the cutter 34, the base 33
And a pressing portion 36 which can be moved up and down by a piston or the like driven by a predetermined fluid transmission mechanism so as to collectively hold the heating wire 4 between the horizontal portion 35 and the pressing portion 36. It is composed of FIG. 3 shows the cutter
34 shows a preferred embodiment of the present invention, in which a lower blade 38 fixed to a base portion 33 and a piston 40 that can move up and down by an appropriate controlled fluid transmission mechanism such as an air cylinder are connected. The upper blade 39 is configured to be movable by using a support shaft 41 supported by the base 33 as a fulcrum.

Next, the method of arranging the heating wires on the laminated intermediate film according to the present invention will be sequentially described with reference to FIGS.

First, as shown in FIG. 2 (a), each of the hobbins 3 provided on the frame 2 is pulled out to a heating wire 4, respectively.
The light is converged and introduced into the guide unit 10. The introduced heating wire 4 is sent out to the attachment / detachment section 20 while being in contact with the electrode roll 13 via the guide roll 12 in the guide section 10.

In the crimping section 20, the end of the heating wire 4 is guided on the matching intermediate film P already arranged at a fixed position, and the press electrode section 22 is pressed.
And press it down. At the time of pressing, the portion of the heating wire 4 located between the electrode roll 13 in the guide portion 10 and the press electrode portion 22 in the crimping portion 20 has already been heated by the application of voltage, so that the thermoplastic material Embedded in the bonding intermediate film P made of After the end of the heating wire 4 that has generated heat is fixed to the alignment interlayer P in this manner, the wire bonding mechanism 1 is moved horizontally in an appropriate direction while moving from the guide portion 10 to the crimping portion 20. The supplied heating wire 4 is connected to the electrode roll 13 and the press electrode section 22.
The heating wires 4 can be arranged on the matching intermediate film P in a desired pattern by successively applying pressure to the matching interlayer film P by applying heat and heating. In this case, each heating wire 4 supplied to the press electrode section 22 is guided by the comb comb plate 23.
A predetermined interval can be maintained by passing through.
Therefore, if the wire bonding mechanism 1 is moved in a horizontal direction so as to draw a sinusoidal waveform, for example, the heating wire 4 can be arranged on the matching interlayer film P so as to draw a regular waveform. That is, the heating wire (4) can be arranged on the intermediate film P in a free pattern depending on the moving direction of the wire bonding mechanism 1.

Thus, after the arrangement of the heating wire 4 on the alignment intermediate film P is completed, as shown in FIG. 2 (b), the crimping portion 20 is raised, and the pressing force on the heating wire 4 by the press electrode portion 22 is applied. To cancel the application of the voltage to the heating wire 4,
The wire bonding mechanism 1 is slightly moved horizontally while the heating wire 4 is separated from the lamination intermediate film P. Guide part in wire sticking mechanism 1
The heating wire 4 separated from the heating wire 4 so as to float between the heating wire 10 and the intermediate film P is connected to the heating wire cutting portion of the wire bonding mechanism 1.
The heating wire 4 is collectively placed on the horizontal portion 35 while moving the base portion 33 in 30 along the guide rod 32.

After the heating wires 4 are collectively placed on the base portion 32, as shown in FIG.
Is lowered, and the heating wire 4 is collectively held so as to be sandwiched between the horizontal portion 35 of the base portion 32. After holding the heating wire 4 in this way, the cutter 34 previously attached to the base 32 is operated to cut the heating wire 4 and cut. The cutting operation of the cutter 34 in this case will be described with reference to FIG. 3 as an example. The heating wire 4 is collectively mounted on the lower blade 38 constituting the cutter 34, and thereafter, the piston 40
By pressing the upper blade 39 with the support shaft 41 as a fulcrum, the heating wire 4 is moved between the upper blade 39 and the lower blade 38 in accordance with the movement of the upper blade 39.
Can be sequentially cut one by one.

Thus, after the cutting of the heating wire 4 is completed, the wire bonding mechanism 1 is slightly moved in the horizontal direction, and the press electrode portion 22 in the crimping portion 20 is lowered, so that the heating wire 4 is again applied to the laminated intermediate film P. The cut end is crimped, and the process returns to the step of FIG. 2 (a). Thereafter, the heating wire 4 that has been heated and heated in the same manner is combined and crimped to the intermediate film P, thereby repeatedly arranging the heating wire 4. Perform.

[Effects of the Invention] As described above, according to the present invention, a heating wire is crimped onto a matching intermediate film while freely moving a wire bonding mechanism in a horizontal direction, and cut, thereby disposing the heating wire at a fixed position. Heating wires can be arranged in a desired pattern with respect to the combined interlayer film. In addition, since the wire bonding mechanism itself is set in advance as a whole, the positional relationship between the components can be accurately adjusted and arranged, and the heating of the laminated interlayer film can be performed. The work of laying wires can be smoothly performed.

[Brief description of the drawings]

FIG. 1 is a side view of an essential part showing an embodiment of a wire sticking mechanism in the apparatus of the present invention, and FIGS. 2 (a) to (c) implement the method of the present invention by the wire sticking mechanism shown in FIG. FIG. 3 is a front view showing an example of the structure of the cutter. DESCRIPTION OF SYMBOLS 1 ... Wire bonding mechanism, 2 ... Frame, 3 ... Bobbin, 4 ... Heating wire, 5 ... Spacing plate, 10 ... Guide part, 11 ... Arm, 12 ... Guide roll, 13 ... ... Electrode roll, 14 ... Spacing plate, 20 ... Crimping part, 21 ... Coil spring, 22 ... Press electrode part, 23 ... Comb plate for guide, 24 ... Coil spring adjusting screw, 25 ... Guide rod member, 30: Heating wire cutting section, 31: Support plate, 32: Guide rod, 33: Base section, 34: Cutter, 35: Horizontal section, 36: Press section, 37 …… Sliding rod, 38 …… Lower blade, 39 …… Upper blade, 40 …… Piston, 41 …… Spindle, P… Mating interlayer

Claims (2)

(57) [Claims] 1. An electrode roll for supplying a heating wire to a next step while guiding a heating wire, and a press electrode for pressing the supplied heating wire to a mating intermediate film placed at a fixed position in a horizontal free pattern. While moving, the heating wire is energized and heated by applying a predetermined voltage between the electrode roll and the pressing electrode, while the heating wire is aligned by pressing the pressing electrode, and the heating wire is pressed against the intermediate film. 2. The method for arranging a heating wire on an interlayer film for laminated glass, wherein the open end that is not press-bonded is automatically cut while holding it. 2. A wire sticking mechanism integrally supported so as to be able to move freely in the horizontal direction by way of a frame, comprising a guide portion for guiding heating wires drawn from a number of bobbins arranged separately. The heating wire supplied through the guide portion is arranged at a predetermined interval, and a crimping portion that enables crimping to the matching intermediate film by energizing and generating heat between the guide portion and the crimping portion. A heating wire cutting section which cuts an open end of the heating wire which is not cut while cutting the open end of the heating wire.