JPH03101919A - Sticking device for thin film - Google Patents

Abstract

PURPOSE:To stick precisely a thin film to a molded body without generating positional deviation and insert automatically the fringe part of the thin film into a groove of the molded body, a by a method wherein the title device is made into a constitution where a top force into which an annular groove is formed, a bottom inner and outer forces with guide pin held elastically and an insertion blade are combined with one another. CONSTITUTION:A thin film S where it is cut into a desired form and an adhesive agent is applied to the rear into which a through hole R corresponding to a fitting hole H of the molded body W is bored is put on a fixed position of a bottom inner force 6 by fitting a through hole R over a guide pin 6A by turning the surface downward. Then a molded body W where a groove U is formed in the fringe part to which the thin film S is to be stuck is put on the upper part of a bottom outer force 10 by turning the groove U to the lower part and causing a fitting hole H to correspond to the guide pin A. Then a top force fitting plate 1 is lowered, the molded body W is stuck to the undersurface of a top force 2 and the guide pin 6A is inserted into the fitting hole H and a recessed part 2A. Then the fringe part of a thin film S is inserted into a groove U part of the molded body W with the insertion blade 9 and the lowering is stopped.

Description

Detailed Description of the Invention (Industrial Field of Application) The present invention involves attaching a thin film made of cloth or the like to a grooved molded body, such as an automobile door trim, and attaching the peripheral edge of the thin film to a grooved molded body. This invention relates to a thin film pasting device that is inserted into a groove.

(Prior art and problems) In recent years, thin film materials such as cloth or plastic sheets are pasted onto molded parts to partially create interior parts for automobiles, decorative building materials, exterior parts of household electrical appliances, etc. There are many ways to make the exterior look luxurious by using different materials, colors, and patterns.

In addition, various efforts have been made to improve the appearance of the peripheral edge of the thin film material, and the most attractive configuration is to create grooves in the part of the molded product where the peripheral edge of the thin film is located. The peripheral edge of the thin film is inserted into this groove.

With this structure, the peripheral edge of the thin film is hidden in the groove, and the connection area between the molded body and the thin film is finished with an extremely clean line, resulting in an even better appearance.

However, in order to realize such a structure, there was no suitable equipment and the peripheral end of the thin film had to be inserted into the groove of the molded body by hand, which was a cumbersome process.

(Purpose) The present invention was made in view of the above problems, and an object of the present invention is to provide a device that can attach a thin film to a molded body and automatically insert the peripheral end of the thin film into a groove of a molded body. This is the purpose.

(Example) Embodiments of the present invention will be described in detail below based on the drawings.

First, the configuration will be explained with reference to FIG. 1. The molded body (W) has an annular groove (U) formed on the lower surface of the upper die mounting plate (1) which is attached to a press machine (not shown) and is movable up and down. An upper mold (2) is attached which has a mold surface that is almost the same as the back shape of the mold and has a recess (2A) bored at a position corresponding to the mounting hole (H) prepared in advance in the precept-shaped body (W). .

A lower mold mounting plate (3) attached to a press machine (not shown) is provided below the upper mold mounting plate (I), and the annular groove is formed in the center of the lower mold mounting plate (3). A fixing plate (4) having an outer peripheral edge shape that is almost the same as the inner peripheral edge shape of (U) is positioned correspondingly inside the groove formed in the upper mold (2) via the supporting frames (5) (5). It is fixedly supported.

A lower inner mold (6) having a mold surface corresponding to the inner shape of the groove forming part of the upper mold (2) is mounted on the upper part of the fixing plate (4) with a plurality of coil springs (7) (7) interposed therebetween. The lower inner mold (6) has guide pins (6A) erected in correspondence with the recesses (two) of the upper mold (2). Note that the lower inner mold (6) has a guide pin (attached to the lower surface of the lower inner mold (6) that allows vertical movement of the fixing plate (4) and passes through it.
8), it is possible to move up and down while restricting lateral sway.

Further, an insertion blade (9) corresponding to the uneven shape of the groove formed in the upper mold (2) is erected on the peripheral edge of the fixed plate (4). The insertion blade (9) is normally located slightly below the surface of the lower inner mold (6). Further, on the outside of the lower inner mold (6), a perforated lower outer mold (10) having a mold surface that is almost the same as the outer mold surface of the groove formed in the upper mold (2) is mounted on a movable plate ( 11) and a plurality of coil springs (1 2) (1 2), the lower inner mold (6) is elastically supported on the lower mold mounting plate (3) with a slight gap between the lower and outer molds. The mold (10) is normally supported so as to protrude slightly above the surface of the lower inner mold (6). The lower outer mold (10) is also the lower inner mold (
Similarly to 6), it moves up and down while being guided by a guide pin (l3) to prevent it from swinging laterally.

Furthermore, in the figure (1 4) (1 4) are guide pins provided on the lower die mounting plate (3), (1 5) (
1 5) is a guide tube attached to the upper mold mounting plate (1), and when both are fitted, the upper mold (2) and the lower mold (6) are connected.
) (10). Further, (S) is a thin film that is stronger than cloth, and has through holes (R) corresponding to the attachment holes (H) of the molded body (W).

The structure constructed in this way is in the state shown in Figure 1.
A thin film (S) that has been cut into a desired shape in advance and has through holes (R) that correspond to the mounting holes (H) of the molded body (W).
Apply adhesive to the back side of the mold, and insert the guide pin (6A) into the through hole (R) with the surface facing downward, and insert the lower inner mold (6).
Place it in the specified position. At this time, the thin film (S) is inserted into the lower inner mold (6) by inserting the through holes (R) into the plurality of guide pins (6A).
Since it is placed on top, the positioning is accurate.

Next, grooves (
Place the molded body (W) in the shape of U) on the upper part of the lower outer mold (10) with the groove (U) facing downward and the mounting hole (H) inserted into the guide pin (6).
Place it in correspondence with A). At this time, an adhesive is applied to the portion to which the thin film (S) is attached and the groove (U) portion, if necessary.

Next, a press machine (not shown) is operated to lower the upper die mounting plate (1). By this lowering operation, the upper mold (2) first pinches the precept-shaped object (W) with the lower outer mold (10), bringing the precept-shaped object (W) into close contact with the lower surface of the upper mold (2). If the descent continues in this state, the lower outer mold (lO) will be lowered against the coil spring (l2) (12) and the precept shape (W) will be lowered.
) is tightly attached to the lower surface of the guide pin (6).
A) is inserted into the mounting hole (H) and the recess (2 people), and the molded body (W) is formed by the upper die (2) and the lower die (6) and (10).
and a thin film (S) is sandwiched between them.

At this time, the thin film (S) and molded body (W) are attached to the guide pin (6A).
) prevents misalignment.

If you continue to descend further in this state, the lower outer mold (10) and lower inner mold (6) will simultaneously spring into coil springs (12) (12) (7).
(7), and the peripheral end of the thin film (S) is inserted into the groove (U) of the molded body (W) by the insertion blade (9) as shown in Fig. 2 (A). Descent is stopped.

This state continues for a predetermined period of time, and when the adhesion of the thin film to the precept form (W) becomes sufficient, the press machine (not shown) operates in reverse. Due to this operation, the thin film (S) is attached to the molded body (W), and the peripheral end of the thin film (S) is inserted into the groove (U) (see Figure 2 (opening)). The lower outer mold (10
) is placed on top. (Fig. 1) This is removed manually and the same operation as described above is repeated.

Next, another embodiment will be explained with reference to FIG. 3. In the embodiment shown in FIG. 3, the guide pin (6A) of the lower inner mold (6) in FIG. 1 is elastically supported via a coil spring (6B). With this structure, it is possible to cope with the case where the mounting hole (H) cannot be provided in advance in the molded body (W). In this case, there is no need to drill the recess (2A) in the upper mold (2), and the guide pin (6A) is attached to the coil spring (6B) when the upper mold (2) and lower mold (6) (10) are aligned. The thin film (S) is lowered against the movement of the thin film (S) to prevent it from shifting.

(Effects) As is clear from the above description, the present invention has a structure that skillfully combines an upper mold with an annular groove, a lower inner mold with elastically supported guide pins, a lower outer mold, and an insertion blade. Since the,
The advantages are significant because the thin film can be accurately attached to the molded body without any displacement, and the peripheral edge of the thin film can be automatically inserted into the groove of the molded body. be.

[Brief explanation of drawings]

Fig. 1 is a longitudinal sectional front view showing an embodiment of the present invention, Fig. 2 (A) is a sectional view showing the state in which the peripheral edge of the thin film is inserted into the groove of the molded body, and Fig. 2 (opening) is the state in which the insertion is completed. FIG. 3 is a longitudinal sectional view showing another embodiment. (2) Upper mold (2A): Recess (6): Lower inner mold (6A): Guide pin (6B): Coil spring (9): Insert blade (10): Lower outer mold (W): Molded object (S): Thin film (U): Groove (H): Mounting hole (R) 2 through holes 2 Figure (Wa Ryo 2 Figure (Ino

Claims (1)

[Claims] 1) A thin film (S) of cloth or the like is adhered to a part of a molded body (W) having an annular groove (U) surrounded by the groove (U), and the thin film (S) is attached to the part surrounded by the groove (U). A thin film adhering device for inserting the peripheral end of the groove (U) into the groove (U), the formed body (W) having the groove (U)
An upper mold (2) having a grooved forming surface corresponding to the back surface of the molded body (W) is provided so as to be movable up and down.
A lower inner mold (6) having a forming surface corresponding to the surface of the portion surrounded by the groove (U) is elastically supported so as to be able to descend under pressure from above. A guide pin (6A) for positioning and preventing displacement of the thin film (S) and the molded body (W) is erected on the upper surface, and on the outer periphery of the lower inner mold (6), A perforated lower outer mold (10) having a forming surface corresponding to the outer peripheral surface of the groove (U)
The lower inner mold (6) is elastically supported so that it can be lowered under pressure from above, and is slightly protruded upward from the surface of the lower inner mold (6), leaving a slight gap between it and the lower inner mold (6). An annular insertion blade (9) having an upper surface shape corresponding to the vertical unevenness of the groove (U) is disposed between the lower inner mold (6) and the lower outer mold (10). A thin film pasting device characterized by being fixedly disposed at a position slightly lower than the surface of the mold (6) when it is raised. 2) The thin film pasting device according to claim 1, wherein the guide pin (6A) is elastically supported via a coil spring (6B) and stands upright on the lower inner mold (6).