JPH0839581A - Apparatus and method for molding resin molded form to platelike material - Google Patents

Abstract

PURPOSE:To mold a resin molded form at the arbitrary position of a platelike material by moving a mold having an arbitrary shape recess at one side to a predetermined position of the material in close contact with the material, pouring resin from a resin pouring unit in a cavity formed of the recess and the surface of the material, and solidifying it. CONSTITUTION:A mold A having an arbitrary shape recess 1 on a lower surface is installed at the arbitrary position of a platelike material 2 made of a glass plate of the lower surface. A resin is poured from a resin pouring unit B communicating with the mold A in the cavity 3 formed of the material 2 and the recess 1. The recess 1 is stepwisely formed, and the resin is poured from the shallow part 22b to the deep part 22a mounted by a mounting member 11. An adhesive layer 12 is provided on the surface for placing the recess 1 of the material 2 to adhere the resin poured in the recess 1. Accordingly, a resin molded form having the member 11 mounted at the arbitrary position of the plate 2 can be easily provided.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for molding a resin-molded portion on a plate-shaped body and a method for molding the resin-molded portion. More specifically, it can be easily mounted on an arbitrary position on the surface of the plate-shaped body such as window glass. The present invention relates to an apparatus and a method capable of molding a resin molding part having a desired shape.

[0002]

2. Description of the Related Art Conventionally, when attaching a window glass for an automobile to an opening flange of a vehicle body of an automobile, the window glass is positioned at a predetermined position of the opening flange, or an adhesive such as a urethane-based adhesive applied to the opening flange is used. A window glass attachment member such as a clip or a bolt is arranged on the inner surface side of the window glass for temporary fixing until sufficient adhesive force is developed. These attachment members may be directly adhered to the window glass by themselves, or may be provided on the window glass via a resin molding portion that serves as a pedestal.

Further, an inner mirror such as a rearview mirror or a rearview mirror, which a driver visually recognizes behind, may be attached to a glass plate used for a windshield of an automobile. In this case, an attachment member called a mirror base for attaching the inner mirror to the glass plate is fixed to the glass plate, and the inner mirror is attached to the glass plate via this mirror base.

There are the following methods for attaching these attaching members to the plate-like member.

(1) A window glass attachment member is directly attached to a predetermined position of a window glass supported by a window glass support or the like via an adhesive member such as double-sided tape or urethane.

(2) In a molding-molded window glass in which a molding portion is integrally molded in the peripheral portion of the window glass, a molding molding die used at the time of manufacturing the molding can be provided with a mounting member or the like. The mounting member is simultaneously and accurately mounted on the inner surface of the window glass so as to be integrated with the molding.

(3) When the automobile window glass is a windshield, the mirror base is attached to the inner surface of the glass while being supported by a glass support or the like via a silicon adhesive or a urethane adhesive. .

[0008]

Among the above-mentioned conventional techniques, in the method (1), a mounting member is generally mounted in a direction other than the normal direction of the surface of the window glass, which is flat or curved. There is a problem that it cannot be done. If the orientation of the mounting member is to be set to a particular desired orientation, it is necessary to devise the shape of the mounting member itself. Further, when a plurality of mounting members are used, there is a problem in that it is often necessary to use as many kinds of parts as the number of used members.

Further, when a urethane sealant is used as an adhesive for adhering the mounting member to the window glass, it takes a long time for the urethane sealant to cure, and the window glass after the mounting member is adhered There is a problem that it is necessary to secure a stock place for

Further, in this method, since the attachment member is directly attached to the window glass, the orientation of the attachment member is easily influenced by the curvature of the window glass at the attachment site. Therefore, in order to increase the accuracy of the orientation of the attachment member, it is necessary to manage the curvature of the window glass at the attachment site of the attachment member more rigorously than before, and also the jigs and tools for bonding. There is a problem in that it may be necessary to specialize it, which may cause an increase in manufacturing cost.

According to the method (2), usually, the mounting member can be mounted with high precision at the same time as the molding on the outer peripheral portion of the window glass. However, when it is desired to attach only the attachment member to the window glass, since the molding die for molding the molding is expensive, if the method is used as it is, the manufacturing cost may be higher than that of the method (1). There is a problem.

[0012] In addition, in the molding die for integral molding, a cavity is usually formed by the peripheral portion of the plate-shaped body and the inner wall of the molding die. Therefore, the mounting position of the mounting member is limited, and when the mounting member is mounted on the relatively inner peripheral side of the plate member, a resin bridging portion may be formed on the plate member surface.

In the method (3), the manufacturing process of the mirror base, the manufacturing process of the film-like silicon adhesive and the manufacturing process of the window glass are independently performed, and the bonding process of the mirror base and the silicon adhesive is independent. Since the mirror base already bonded with the silicon adhesive and the window glass are adhered independently, the manufacturing cost is increased.

The above-mentioned problems are not limited to window glass for automobiles, but occur in other various plate-like bodies as well.

Therefore, an object of the present invention is to solve the above-mentioned problems of the prior art, and to provide an apparatus and method capable of easily forming a resin-molded portion having a desired shape at an arbitrary position on the surface of a plate-like body such as a window glass. Is to provide.

[0016]

The above object can be achieved by the present invention described below. That is, the present invention has a molding die which has a concave portion having an arbitrary shape on one side surface and forms a desired cavity by the concave portion and the surface of the plate-shaped body when the one side surface is installed on the surface of the plate-shaped body. And a resin injecting machine for injecting a resin into the molding die, and a molding die and / or a resin injecting machine at a predetermined position on the plate-shaped body surface by arbitrarily changing the positions of these molding die and / or the resin injecting machine. (EN) Provided is a device for molding a resin-molded portion into a plate-shaped body, which comprises a moving means that can be installed.

Further, according to the present invention, a mold having a concave portion of an arbitrary shape on one side surface is moved to a predetermined position on the surface of the plate-like body by a moving means for moving the mold to a predetermined position, and the mold is moved to a predetermined position. The side surface is arranged so as to be in close contact with the surface of the plate-shaped body, and in the cavity formed by the recess of the mold and the surface of the plate-shaped body,
Provided is a method for molding a resin-molded portion into a plate-like body, which comprises injecting a resin from a resin injecting machine communicating with the mold to solidify the resin.

[0018]

Embodiments of the present invention will be described with reference to the drawings.

One embodiment of the apparatus of the present invention is a plate-shaped body having a concave portion 1 of an arbitrary shape on the lower surface and a single glass plate on the lower surface, as shown schematically in FIGS. A molding die A that forms a desired cavity 3 by the recess 1 and the surface of the plate-shaped body 2 when installed on the surface of No. 2, and a resin injection machine B that injects the resin 4 into the molding die A, And a robot C for moving the position of the mold A and / or the resin injection machine B to a predetermined position. Although the mold A is fixed to the resin injecting machine B in this embodiment, the mold A and the resin injecting machine B may be separately operated by the robot C.

Further, in this example, since the molding die A is installed from the upper surface of the plate-like body 2, the portion provided with the concave portion 1 is referred to as the lower surface of the molding die A for convenience, for the sake of simplicity.
If the molding die A is installed from the lower surface of the plate-shaped body, the recessed portion 1 is located on the upper surface, and in other cases, the position is similarly changed.

The recess 1 has a substantially stepwise vertical cross section,
It has a deep portion 22a and a shallow portion 22b. The nozzle 9 of the resin injecting machine B for injecting the resin 4 into the cavity 3 is provided in the shallow portion. Further, a mounting member 11 such as a temporary fixing member or a positioning member is attached to the deep portion 22a of the recess 1 as needed.

A method of molding a resin molding portion at an arbitrary position on the inner peripheral side by a predetermined distance from the end face of the plate-shaped body surface 2 by the above-mentioned apparatus will be described. First, the plate-shaped body, the mold and the resin injection will be performed. Place the machine in place.

An example thereof will be described with reference to FIG. As generally widely used, a plate-shaped body 42 of an arbitrary shape conveyed by a conveyor 41 driven at a fixed time interval is conveyed onto a plate-shaped body positioning station 43, where a positioning stopper and a pressing force are applied. Pushers, etc. 4
4 is operated to fix the plate-like body 42 at a predetermined position with high accuracy. At this time, an adhesive layer 45 such as an adhesive layer, a primer layer, or a double-sided tape may be provided in the resin molding portion molding region of the plate-shaped body 42 as required.

Upon completion of the positioning of the plate-like body 42, the robot 50 sets the molding die A, the resin injecting machine B or both of them to a predetermined position. For fixing the plate-shaped body 42, instead of the stopper and pusher 44,
Other fixing mechanisms such as a vacuum suction chuck can also be used. In addition, when other members such as a temporary fixing member and a positioning member are simultaneously provided on the resin molding portion 47 to be molded before setting the mold at a predetermined position, the component mounting station 48 can set a desired shape in the mold. Load the parts.

It is desirable that the lower surface of the mold is closely adhered to the surface of the plate-shaped body 42. However, a slight bend or undulation of the plate-shaped body may cause a gap between the two. In order to prevent the occurrence of heat generation, an elastic member (not shown) that can withstand the heat of the molten resin is provided on the surface of the mold that comes into contact with the plate, and a gap is generated between the mold and the plate. Is preferably prevented. Due to the control conditions of the injection pressure and injection amount of the resin, it is actually difficult to completely adhere them to each other, and some burrs may be generated at the end of the resin molding portion. In order to reduce the occurrence of such burrs, it is preferable that the gap between the contact surfaces of the mold and the plate-shaped body is 0.3 mm or less.

During the installation of the mold or the molding of the resin, as shown in FIGS. 1 to 3, the plate-shaped body is formed below the plate-shaped body 2 at the position where the mold A is fixed by the injection pressure of the resin or the like. It is preferable to position the backup member 5 for preventing bending and damage. In the illustrated example, the conveyor also serves as a backup member (FIG. 4). After the plate-shaped body 2 is firmly sandwiched by the mold and the backup member 5, the resin supplied from the resin supply station 49 to the resin injecting machine 46 is the resin when the motor 6 is activated as shown in FIG. The screw 7 of the injection machine B rotates, and the resin 4 melted in the heating cylinder 8 is injected into the cavity 3 formed by the mold and the plate-shaped body through the nozzle 9.

The injection of resin is automatically controlled by a computer linked to a meter such as an ammeter or a voltmeter of the motor 6. After the injection of the resin is completed and the temperature of the mold A is cooled to a predetermined temperature or lower, the resin injection machine B simultaneously rises from the surface of the plate-shaped body 2 and the resin molding portion 10 is removed from the plate as shown in FIG. It is molded at a predetermined position on the body 2.

At the time of molding the above-mentioned resin-molded portion, other members such as the positioning member 11 and the like are previously installed in the mold so that the resin-molded portion 10 to be molded has an arbitrary member 11.
Can be provided at the same time. Further, the adhesiveness between the plate-shaped body 2 and the resin molding portion 10 differs depending on the resin used, so that the adhesive member 12 is provided in advance at a predetermined position of the plate-shaped body 2 according to the combination of the plate-shaped body and the resin. You can also

As shown in FIG. 4, the plate-shaped body on which the molding of the resin molding portion 10 has been completed leaves the glass positioning station 43 by the conveyor 41, and the next plate-shaped body 42 is conveyed on the positioning station 43 to carry out the above-mentioned operation. Is repeated.

Next, another embodiment of the present invention will be described with reference to FIGS. The hole 1 is formed in the resin molding portion molding region of the plate-shaped body 2.
3 is present, the resin mold is a pair of upper and lower molds A,
A ', and the pair of molding dies A, A'provides a hole 13
The resin molding portion 10 can be molded in the same manner as in the above method by sandwiching the plate-like body surface 2 including the above, and forming the cavity 3 by the pair of molds A and A ′ and the plate-like body 2. In this case, as shown in FIG. 8, by arranging and placing an appropriate other member 14 serving as a mounting base for various devices such as an automobile wiper in the cavity 3 formed by a pair of molds A and A '. It is possible to mold the resin molding portion 10 having the member 14 that crosses the surface of the plate-shaped body 2.

After molding the member 14, a molded product 10 is obtained.
The plate-like body 2
It is also possible to form the resin molding portion 10 only around the hole portion of the above, and form the hole 15 having a desired diameter, the periphery of which is covered with resin, in which the above-mentioned wiper or the like can be attached, in the plate-shaped body 2.

The molding die used in the present invention as described above may have any shape as long as it can form a desired cavity. When the resin is a thermoplastic resin, a thermosetting resin or the like, it has high heat resistance. It is preferably made of an excellent metal.
When high temperature and high pressure are not required at the time of molding, for example, when a liquid resin such as a reactive prepolymer or PVC paste sol is used, it may be formed from a material such as ceramic, resin or rubber.

The resin injecting machine used in the present invention is preferably relatively small so that it can be gripped and operated by a robot, and preferably has a weight of 30 kg or less including accessories and the like. As the resin injecting machine, a device for supplying and injecting the resin by moving the resin injecting device itself back and forth in a cylinder or a piston, a device for rotating a screw in the cylinder and pushing out a predetermined amount of the resin, and the like are used. A particularly preferable resin injecting machine has a cylinder having a screw inside and a nozzle, and measures the resin by rotating the screw and heating the cylinder.
An injection molding machine that melts and injects is preferable.

In the apparatus of the present invention, a computer-controlled robot or the like is useful as means for moving the resin injecting machine and / or the molding die up and down and left and right.

The plate-like material used in the present invention is a single plate glass, a multi-layer glass, an organic glass, a composite of a glass plate and another material such as a synthetic resin plate or a film, and the like. These plate-like bodies are not limited to flat plate-like ones, but may be curved ones and are not particularly limited in terms of shape. For example, front, rear, side and roof window glass of various vehicles,
In addition, various glass plates used for general houses and buildings are included.

The resin used in the present invention includes thermoplastic resins such as polyvinyl chloride resin and polyurethane resin, thermosetting resins such as epoxy resin, acrylic resin and polyurethane resin, and reactive prepolymers such as prepolymer for polyurethane. Any resin may be used as long as it is a moldable resin such as a liquid resin such as a polyvinyl chloride resin paste sol.

The shape of the recess provided in the mold is appropriately determined according to the shape of the mounting member, the shape of the window opening flange, and the like. Therefore, the vertical cross section is not limited to the substantially stepped shape as in the above example. As in the above example, it is not possible to provide a deep portion and a shallow portion in the recess, that is, to provide the recess with a depth such that a high-height portion and a low-height portion of the resin-molded portion to be molded are formed. It is preferable since no post-finishing is required for the molded resin molding portion.

The reason why the post-finishing is unnecessary is as follows. Generally, in the nozzle portion, after the resin molding portion is molded, the resin protrudes and solidifies to form a small projection. If this small protrusion is located at the top of the resin molded portion, that is, at the same height as the position where the mounting member of the resin molded portion is attached, the adhesion between the two is poor when the plate-shaped body is attached to the window opening flange. turn into. Therefore, it becomes necessary to remove these small protrusions, which increases the number of complicated steps.

Therefore, if a small protrusion is formed one step below the mounting member of the resin molded portion to be molded, the above post-finishing is not necessary. It is preferable to provide a shallow portion, attach a mounting member or the like to the deep portion, and provide the resin flow path outlet in the shallow portion. In some cases, it is possible to eliminate the need for post-finishing by providing the resin flow path outlet on the side surface of the recess, but it is preferable to provide the resin flow path outlet in the shallow portion in view of the fluidity of the resin.

At this time, as a preferable shape of the mounting member or the like, the main body portion 21a of the upper mounting member or the like has a substantially conical shape, and the bottom portion 21b has a flat plate-shaped portion, so that the flat plate-shaped portion forms the upper surface of the cavity. It functions as a partition for partitioning, and can prevent the resin material from flowing upward, which is the mounting portion 22c such as the mounting member of the recess. In addition, the mounting member and the like are surely mounted in the recess due to the substantially conical shape. The function of the lid may not be provided in the attachment member or the like, but may be provided with a means for separately preventing the resin material from flowing into the attachment member or the like mounting portion 22c. Is done.

[0041]

According to the present invention, a resin molding die and a resin injecting machine are installed at arbitrary positions on the plate-like body by using a robot, and the resin injecting machine is used to form the die and the plate-like body. Resin can be injected and filled into the cavity to easily form a resin-molded portion having an arbitrary shape.

Further, since the main equipment required is only the robot and the equipment attached to it, there is space saving, and the production process can be relatively freely configured at any place. Further, if centralized control using a computer or the like is performed, there is an effect that mixed production of various kinds can be performed.

Molding is performed by forming a cavity of the mold so as to provide a step in the shape of the resin molding portion to be molded, and injecting the resin into the cavity from a portion corresponding to a low step of the resin molding portion. There is no need to remove the small protrusions of the resin formed in the resin molding part.

Further, according to the present invention, since there is no restriction on how to attach the attachment member to the mold, the extending direction of the attachment member is not limited to the normal direction of the plate-like member, and the window opening and the plate It can be oriented in any direction depending on the design of the body.
As for the mounting position of the mounting members, etc., depending on the purpose of temporary fixing, permanent fixing, etc. and the size of the plate-shaped body, it is possible to mount as many as necessary on the plate-shaped body at the required position. It is possible to increase the degree of freedom in designing a product manufactured into a plate.

[Brief description of drawings]

FIG. 1 is a schematic cross-sectional view illustrating an apparatus and method of the present invention.

FIG. 2 is a schematic cross-sectional view illustrating an apparatus and method of the present invention.

FIG. 3 is a schematic cross-sectional view illustrating an apparatus and method of the present invention.

FIG. 4 is a schematic top view illustrating the apparatus and method of the present invention.

FIG. 5 is a schematic sectional view (a) and a perspective view of a plate-like body (b) illustrating an apparatus and a method of the present invention.

FIG. 6 is a schematic cross-sectional view illustrating an apparatus and method of the present invention.

FIG. 7 is a schematic cross-sectional view illustrating an apparatus and method of the present invention.

FIG. 8 is a schematic cross-sectional view (a), (b) and a top view (c) of a plate-like body for explaining the apparatus and method of the present invention.

[Explanation of symbols]

 A: Mold B: Resin injection machine C: Robot 1: Recessed part 2: Plate-like body 3: Cavity 4: Resin 5: Backup member 6: Motor 7: Screw 8: Cylinder 9: Injection nozzle 10: Resin molding part 11: Mounting Member 12: Adhesive member 13: Hole 14: Member 15: Hole 41: Conveyor 42: Plate-like body 43: Plate-like body positioning station 44: Stopper and pusher 45: Adhesive member 46: Resin injection machine 47: Resin molding part 48: Parts mounting station 49: Resin supply station 50: Robot

Claims (9)

[Claims] 1. A mold having a concave portion having an arbitrary shape on one side surface and forming a desired cavity by the concave portion and the surface of the plate-shaped body when the one side surface is installed on the surface of the plate-shaped body. , A resin injecting machine for injecting resin into the molding die, and the molding die and / or the resin injecting machine are installed at predetermined positions on the plate surface by arbitrarily moving the positions of these molding die and / or the resin injecting machine. A device for molding a resin-molded portion into a plate-shaped body, which comprises a moving means capable of moving. 2. A resin molding portion molding of a plate-shaped body, comprising a second mold having a concave portion of an arbitrary shape on one side surface, which is installed on a side surface opposite to a surface of the plate-shaped body on which the molding die is installed. The resin molding part molding apparatus according to claim 1, wherein the plate-shaped body is sandwiched by including holes provided in the region. 3. The resin molding part molding apparatus according to claim 1, wherein the molding die and the resin injecting machine are fixed or removable. 4. The resin according to claim 1, wherein the recess has at least two portions having different depths, and the resin is injected into the cavity from a shallower depth. Molding unit molding equipment. 5. A mold having a recess having an arbitrary shape on one side surface,
The mold is moved to a predetermined position on the surface of the plate-like body by a moving means for moving the mold to a predetermined position, and one side surface of the mold is arranged so as to be in close contact with the surface of the plate-like body. A method for molding a resin-molded portion into a plate-shaped body, comprising injecting a resin into a cavity formed by the surface of the resin from a resin injecting machine communicating with the mold to solidify the resin. 6. The mold is arranged on the surface of the plate so as to include the holes provided in the resin molding portion molding region of the plate, and the surface opposite to the surface is provided with an arbitrary shape on one side surface. Second with a recess
The plate-shaped body is sandwiched by arranging the mold so as to include the hole,
The resin molding part molding method according to claim 5, wherein the cavity is formed by the pair of molds and the plate-shaped body. 7. The resin molding portion molding method according to claim 5, wherein a resin is injected after mounting a desired member in the cavity. 8. The resin molding portion molding method according to claim 5, wherein an adhesive member is provided in advance in the resin molding portion molding region of the plate-shaped body. 9. The plate according to claim 5, wherein the recess has at least two portions having different depths, and the resin is injected into the cavity from a shallower depth. A method for molding a resin molded part into a sheet.