JP2555151Y2 - Clamping device for bonding skin materials - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION In the present invention, a skin material such as cloth is placed in a tensioned state on the upper surface of a plasticized resin, and the resin and the skin material are pressed simultaneously, so that the resin and the skin material are integrated. The present invention relates to a clamping device for bonding a skin material used to obtain a press-formed product.

[0002]

2. Description of the Related Art As a conventional molding means for molding a molded article formed by attaching a skin material such as cloth or leather to the surface of a plastic resin, there is a conventional molding means having a structure as shown in FIG. That is, 1 is a core type,
Reference numeral 2 denotes a cavity mold. First, a skin material 5 in which a peripheral portion of a skin material 5 is clamped by a clamp frame 3 and a clamp 4 as shown in FIGS. Then, a softened resin material 6 is press-fitted between the skin material 5 and the core mold 1, and then the cavity mold 2 is applied on the core mold 1 to form the resin material 6 and the skin. By pressing both of them, the molded product in which the skin material 5 is integrally adhered (sticked) to the surface of the molded product made of the resin material 6 is press-molded.

[0003]

However, there are various kinds of skin materials used for molding such press-formed products, and for example, as a skin material 5 of a molded product used as an interior product for an automobile, a synthetic material is used. Leather, natural leather, woven cloth, knitted cloth and the like are used. Particularly, in the case of woven cloth and knitted cloth having remarkable elasticity, since the partial elasticity is large, the woven cloth and knitted cloth are used. Is used as a skin layer, in a product having a large irregularity in the surface shape of a formed product, wrinkles or bridges are formed in the skin layer, and product defects are likely to occur.
In particular, when the surface of the molded article to be molded has a remarkable irregularity, the partial tension acting on the skin material varies depending on the irregular surface, and the partial tension is adjusted so as to correspond to the partial tension. Because the skin material is not held by the clamp frame after the adjustment is added, the tension applied to the skin material during the press molding becomes non-uniform, and wrinkles, bridges, and the like are easily generated in the skin material. As a result, there is a problem that the quality of the molded product is reduced.

[0004]

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned conventional problems. The present invention relates to a skin material used for producing a molded product having a surface material bonded to a surface. The clamping device has been improved so that the skin material is partially tensioned (corresponding to the irregular shape of the core) so that wrinkles, bridges, etc. do not occur when the skin material is bonded. It is an object of the present invention to provide a clamping device for bonding a skin material, which can be clamped while adjusting tension.

[0005]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below in detail with reference to the embodiments shown in the drawings.

In FIG. 4, reference numeral 11 denotes a core mold, and 12 denotes a cavity mold.
2, the plastic resin 1 positioned on the core mold 11
Obtaining a molded article having a two-layer structure composed of a plastic resin layer and a skin layer by pressing the skin material 3 and the skin material 14 is the same as that described in the conventional example.

The present embodiment has a feature in a clamping device for clamping the skin material 14 to be positioned on the core mold 11 in a tensioned state.

That is, the clamping device 15 of this embodiment
Has a clamp frame 16 and a plurality of clips 17 for holding the edges of the skin material 14. One magic tape 18 is attached to the lower surface of the clamp frame 16. Is the other Velcro 19
Is provided. Further, the clamp frame 16 is provided with a stay 21 for fixing the clamp frame 16 to the core mold 11.

The structure of the clamping device 15 according to the present embodiment has been described above. The operation of the clamping device 15 will be described. First, the clamp frame 16 is fixed to the core mold 11 by the respective stays 21. Next, a plurality of clips 17 prepared in advance are
It is sandwiched between the edges of the skin material 14 to be stretched. Next, the skin material 14 having the clip 17 is put on the surface of the core mold 11 in a tension state. At this time, the other magic tape 19 of the band 20 provided on the clip 17 is attached to the clamp frame 16. The surface material 14 can be adhered to the surface of the core mold 11 in a tensioned state by attaching the magic tape. In particular, in the present embodiment, the magic tape 19 of the band attached to the clip is used.
The magic tape 18 provided on the clamp frame 16
The surface material 14 is adhered to the surface of the core material 11 so that the surface material 14 is kept in tension. It is possible to adjust the clamp state freely so that even if the uneven shape on the core mold surface is complicated, it can be tightly adhered to the uneven surface even if it is complicated Therefore, it is possible to obtain a high-quality molded product without wrinkles or bridges in the skin layer of the molded product.

In the embodiment shown in FIG. 6, a side surface of the clamp frame 16 is formed as an inclined surface, and a magic tape 18 is formed on the inclined surface.
According to this embodiment, the workability for bonding the magic tape 19 attached to the band 20 to the magic tape 18 of the clamp frame 16 is good.

FIG. 7 shows another embodiment of the present invention in which a large number of locking pins 22 are implanted on the side surface of a clamp frame 16 and a locking hole 23 is formed in a band 20 provided on the clip 17.
And the tension of the skin material 14 is held by the locking force between the locking hole 23 and the locking pin 22. Therefore, according to this embodiment, since the locking is performed by the locking hole 23 and the locking pin 22, a strong tension can be applied to the skin material 14, and the reliability of the locking position is improved. Therefore, there is no problem that the degree of tension is loosened when the skin material 14 is pressed.

Further, as shown in FIGS.
There is also a feature that the work of positioning the degree of tension of the skin material 14 becomes easy by providing the scale 24 on the surface of the surface material.

[0013]

As described above, according to the present invention, a clamp frame for holding the skin material 14 in a clamping device for bonding the skin material 14 in which the skin material 14 serving as a skin layer is held in tension on a core mold. 16, a plurality of clips 17 sandwiched between the edges of the skin material 14, a band 20 with a scale 24 attached to each of the clips 17,
Since the band 20 is a skin material bonding clamping device having locking means 18, 19, 22, and 23 for locking the band 20 to the side surface of the clamp frame 16, according to this, the skin is The degree of tension of the entire surface and the partial tension of the material 14 can be maintained in accordance with the uneven surface of the core mold 11 while predicting that wrinkles, bridges, and the like do not occur in the skin material during press molding. Even if the uneven shape on the surface of the mold is complicated, the clamping state can be adjusted freely so that it can tightly adhere to the uneven surface, so that wrinkles and bridges do not occur in the skin layer of the molded product The effect that a good quality molded article can be obtained is obtained.

[Brief description of the drawings]

FIG. 1 is an explanatory view of a conventional example.

FIG. 2 is a perspective view of a conventional clamping device.

FIG. 3 is an enlarged side view of a main part in FIG. 2;

FIG. 4 is an explanatory view of the embodiment of the present invention.

FIG. 5 is an explanatory diagram of only the clamping device according to the embodiment of the present invention.

FIG. 6 is a partial view showing another embodiment of the present invention.

FIG. 7 is a partial view showing still another embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 11 ... Core type 12 ... Cavity type 13 ... Plastic resin 14 ... Skin material 15 ... Clamping device 16 ... Clamp 17 ... Clip 18 ... Magic tape 19 ... Magic tape 20 ... Band 21 ... Stay 22 ... Locking pin 23 ... Locking Hole 24 ... Scale

Claims (1)

(57) [Scope of request for utility model registration] 1. A skin material bonding clamping device for holding a skin material (14) serving as a skin layer on a core mold in tension, comprising a clamp frame (16) for holding the skin material (14) in tension. A plurality of clips (17) sandwiched between the edges of the skin material (14), a band (20) with a scale (24) attached to each of the clips (17), and this band (20). And locking means (18, 18) for locking to the side surface of the clamp frame (16).
19, 22 and 23), characterized in that it is a clamping device for bonding a skin material.