JP3301671B2 - Manufacturing method and manufacturing apparatus for laminate - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method and an apparatus for manufacturing a laminate.

[0002]

2. Description of the Related Art For example, as a vehicle interior material such as a pillar garnish, a laminate obtained by laminating a skin material on a surface of a core material is frequently used. In such a laminate, in order to prevent the cut line or the woven thread at the end of the skin material from fraying and appearing on the front side, and to prevent the end of the skin material from being peeled off from the core material, the end of the skin material is cored. The core is folded back to the back side at the end, and the end of the core is wrapped around and bonded to the end of the core. As a method of winding the core end portion with a skin material, a method is known in which after bonding the core material to the back surface of the skin material, the end portion of the skin material is manually folded back to the back surface of the core material to be bonded and fixed. .

However, according to this method, the ends of the skin material are sequentially folded over the entire circumference and adhered.
There is a problem that work is troublesome and inefficient. In addition, since it is a manual operation, wrinkles and twists are likely to be generated at the end portion of the skin material when the end portion of the skin material is folded and bonded to the back surface of the core material, and the outer peripheral line of the product edge may be unsightly.

[0004] For this reason, there is known a laminate manufacturing apparatus provided with a folding jig for folding an end portion of a skin material as shown in FIG. This device has a skin material mounting type 5
0 and a core material crimping type 51,
A folding jig 52 at the end of the skin material is provided on the outer periphery. The folding jig 52 is configured to advance and retreat along the outer peripheral surface of the placing die 50 described above. According to this device,
The skin material 60 is placed on the mold surface of the skin material placing die 50,
A core material crimping die 51 is disposed above the skin material placing die 50, a core material 61 is held on the mold surface, and the core material crimping die 51 is lowered to crimp the core material 61 to the back surface of the skin material 60. . Then, once the core material crimping die 51 is once raised, the folding jig 52 is advanced toward the core material end via the skin material 60 end, and the skin material end is folded back toward the core material back side. Thereafter, the core material crimping die 51 is lowered again, and the skin material end is crimped to the core material end back surface on the mold surface. Reference numeral 53 denotes a set pin of the skin material 60, which holds an end of the skin material 60 and is provided so as to be able to freely enter and exit from the outer peripheral surface of the skin material mounting die 50 by an appropriate structure.

[0005] According to the method and the apparatus, the work of folding the end portion of the skin material can be performed promptly and efficiently. By the way, the skin material 6 placed on the skin material placing die 50
An adhesive is applied to the back surface of layer 0 before lamination with core material 61. Therefore, when the core material 61 is crimped to the back surface of the skin material 60, or when the end of the skin material is folded by the folding jig 52 after the crimping, as shown in FIG. There was a disadvantage that the end contacted the mold surface of the core material crimping die 51 and the adhesive was attached. In addition, in order to raise the core material crimping mold 51 halfway and lower it again,
There is a problem that it is necessary to move up and down twice in one molding, and the working time becomes long.

[0006]

SUMMARY OF THE INVENTION The present invention has been proposed in order to solve the above-mentioned problems, and is intended to fold the end of the skin material quickly and roll the end of the core material beautifully. Not only can the end of the skin material come into contact with the core crimping die when folded, etc., but also prevent the adhesive from adhering to the mold surface, and reduce the manufacturing time. An object is to provide a manufacturing method and a manufacturing apparatus.

[0007]

SUMMARY OF THE INVENTION There are two inventions proposed here, the first is a method for manufacturing a laminate, and the second is an apparatus for manufacturing the laminate. That is, the first invention is a method of manufacturing a laminated body in which, after laminating a skin material on the surface of a core material, the end portion of the skin material is folded back to the back surface side of the core material and the end portion of the core material is rolled up. Skin material after applying adhesive,
Or place the skin material before applying the adhesive on the mounting mold surface,
For the skin material before applying the adhesive, an adhesive is then applied to the back surface of the skin material. On the other hand, the core material crimping die positioned above the mounting die protrudes from the mold surface of the core material crimping type so that it can be stored. A pin is provided in advance, and after holding the core material detachably at the lower end of the protruding pin, the protruding pin is protruded from the mold surface of the core material crimping type to crimp the core material to the back surface of the skin material, and then the After folding the end of the skin material to the back side of the core material, the core material crimping type is lowered and the skin material end portion is crimped to the core material back surface on the mold surface of the core material crimping type. .

[0008] A second aspect of the present invention relates to a placing die having a mold surface for placing a skin material, and a core material having a mold surface opposed to the mold surface of the placing die and moving up and down above the placing die. A crimping die, and a laminate manufacturing apparatus including a skin material folding device that folds a skin material end to a back surface of the core material on a side portion of the placing mold, wherein the core material crimping die has a lower end having a core material holding portion. The projecting pin is provided so as to protrude from the mold surface of the core material crimping type so as to be freely housed.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below in detail with reference to the accompanying drawings. 1 to 4 show a method of manufacturing a laminate according to the present invention. FIG. 1 is a cross-sectional view of a manufacturing apparatus showing a state in which a skin material is held on a mounting type and a core material is held on a core material pressing type. 2
Is a cross-sectional view showing a state in which the core material is pressed against the back surface of the skin material by a protruding pin, FIG. 3 is a cross-sectional view showing a state in which the end portion of the skin material is wound on the back surface side of the core material, and FIG. FIG. 5 is a cross-sectional view showing a state of being pressed against the back surface, FIG. 5 is a cross-sectional view showing an example of a core material holding unit, and FIG. 6 is a perspective view of a main part showing another example of the skin material folding device.

FIG. 1 shows an apparatus for manufacturing a laminate for implementing the manufacturing method of the present invention. This apparatus includes a skin material placing die 10, a core material crimping die 20, and a skin material folding device 30. After laminating a core material 61 on the back surface of the skin material 60, the end of the skin material 60 is attached to the core material. It is folded back to the back side of 61, and the end of the core material is quickly and beautifully rolled up.

Here, the skin material 60 and the core material 61 used in the manufacturing method of the present invention will be described.
Is made of a thermoplastic plastic sheet such as vinyl chloride, a cloth material, leather or the like, and is formed into a predetermined skin material shape and size by vacuum molding, press molding or the like. The core member 61 is formed by forming a hard plastic or a steel plate into a predetermined shape in advance.

The mounting die 10 has a skin material mounting die surface 11 formed in an outer shape of a molded product, and a skin material 60 is held on an upper surface thereof. In this embodiment, the skin material 6
Numeral 0 is held by set pins 12 provided on the outer periphery of the side surface of the skin material mounting mold surface 11. The set pin 12 is urged upward by a spring 13 and is formed so as to be able to enter and exit from the outer periphery by a driving device 14 such as an air cylinder device. , Protruding and holding the end of the skin material 60 therethrough.

The back surface of the skin material 60, that is, the core material 61
A well-known adhesive 62 is applied to the surface to be bonded. The adhesive 62 is applied to the skin material 60 before being placed on the mounting die 10.
May be applied in advance, or may be applied after being mounted on the mounting die 10 by the set pins 12.

The core material crimping die 20 is for crimping the core material 61 to the back surface of the skin material. The mold surface 21 formed in the shape of the back surface of the core material faces the mold surface 11 for placing the skin material. It is provided above the mounting die 10 so as to be vertically movable. Reference numeral 28 denotes a driving device such as a cylinder device for moving the core material crimping die 20 up and down.

An extrusion pin 22 is provided on the core material crimping die 20.
Is provided. This protruding pin 22 is
While holding the core material 61 in a state where the mold surface 21 of the core material crimping die 20 is separated from the back surface of the skin material 60.
It is for crimping to the back surface, and is operated so as to be freely protruded from the mold surface 21 by a driving device 29 such as a cylinder device different from the core material crimping die 20. This prevents the adhesive 21 on the back surface of the skin material from adhering to the core material crimping die 20 due to the contact between the mold surface 21 of the core material crimping die 20 and the end of the skin material 60 when the skin material edge is folded back. Can be.

The core member 61 is detachably held by a core member holding portion 23 provided at the lower end of the protruding pin 22 by an appropriate method such as magnetic force, suction or spring pressure. FIG. 5 shows an example of the core material holding section 23. The core member holding portion 23 is provided with a clip member 25 in which a metal plate spring is formed in a U-shape as shown in a concave portion 24. On the other hand, a projecting engagement portion 63 is provided at a predetermined position of the core material 61, and the core material 61 is held by engaging the engagement portion 63 with the clip member 25. When the core material 61 is set in the core material crimping die 20, it is easier to work the protrusion pin 22 if the core material holding portion 23 is adjusted so as to form the same plane as the mold surface 21. Good.

A slide jig 31 and a driving device 32 are provided on the outer periphery of the side surface of the surface material placing mold surface 11 of the placing mold 10.
Is provided.
The slide jig 31 is formed in a flat plate shape, and is driven by a driving device 32 such as a cylinder device.
1 can be moved forward and backward. The slide jig 31 presses the end of the skin material 60 to which the core material 61 is crimped, and folds it toward the back surface of the core material 61.

FIG. 6 shows another example of the folding device.
Reference numeral 40 denotes a folding device, which has a large number of outlets 4 at its tip.
1 is provided. In this folding device 40, after the core material is pressed by the protruding pin, air is blown out from the blowing port 41 as shown by an arrow, and
0 is pushed up and bent toward the back side of the core material 61.

Next, a method of manufacturing a laminate according to the present invention will be described. First, as shown in FIG. 1, the skin material 60 is arranged on the mold surface 11 of the mounting mold 10 by the set pin 12. On the other hand, the core material 61 is held by the core material holding portion 23 provided at the tip of the protruding pin 22 of the core material holding die 20.

Then, as shown in FIG.
Of the core holding die 20 by operating the drive device 29 for
1, only the protruding pin 22 is protruded, and the surface of the core material 61 is pressed against the back surface of the skin material 60. Next, as shown in FIG. 3, the set pin 12 is stored in the mounting die 10,
The end of the skin material is opened so that it can be folded. Then, the slide jig 31 of the folding device 30 is advanced from the outer peripheral side of the placing die 10 toward the mold surface 11, and the end of the skin material 60 is raised from below and folded toward the back surface of the core material 61.

Thereafter, as shown in FIG. 4, the driving device 28 for the core material crimping die 20 is operated to
Is lowered toward the mounting die 10. As a result, the mold surface 21 of the core material crimping type descends while housing the protruding pin 22 therein, and presses the back surface of the core material 61 with the mold surface 21 to crimp the skin material and the core material. The ejection pin 22 is stored in the drive unit 29 for the ejection pin 22.
, Or by turning off the driving device 29 so that the protruding pin 22 is free to move up and down and pushed up by the mounting die 10.
In addition, the skin material 6 folded by the folding device 30
The 0 end is wound around the end of the core material 61 by the mold surface 21 of the core material crimping die 20 descending, and is crimped to the back surface thereof.

As described above, the core material 61 is the core material crimping die 2
Since the outer surface of the skin material 60 is crimped to the back surface of the skin material 60 by the protruding pins 22 protruding from the mold surface 21 of the mold 0, there is a sufficient space between the core material 61 and the core material crimping die 20 when the skin material end is turned back to the core material back surface side. A space is formed. Therefore, the end of the skin material contacts the mold surface 21 of the core material crimping type, and the adhesive applied to the back surface of the skin material does not adhere to the mold surface 21 and is not stained. In addition, compared to the conventional structure, the vertical movement of the core material crimping type can be performed only one half of the conventional structure, so that the time required for pressing the core material can be reduced by about 20%, and the productivity can be increased. Can be.

[0023]

As shown and described above, according to the method and apparatus for manufacturing a laminate according to the present invention, the core material is press-fitted in advance to the back surface of the skin material by the protruding pin, and the core material is folded back at the end of the skin material. A sufficient space is formed between the material crimping die. Therefore, not only can the edge of the skin material be quickly turned back and the edge of the core material rolled up with beautiful appearance, but also the edge of the skin material comes into contact with the core material crimping die and the adhesive adheres to the mold surface. Can be prevented. further,
Since only one vertical movement of the core material crimping die is required, the manufacturing time can be reduced.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view of a manufacturing apparatus showing a state where a skin material is held on a mounting type and a core material is held on a core material pressing type.

FIG. 2 is a cross-sectional view showing a state in which a core material is pressed against a back surface of a skin material by a protruding pin.

FIG. 3 is a cross-sectional view showing a state where an end portion of a skin material is wound around a back surface of a core material.

FIG. 4 is a cross-sectional view showing a state in which an end portion of a skin material is pressure-bonded to a back surface of a core material.

FIG. 5 is a cross-sectional view illustrating an example of a core material holding unit.

FIG. 6 is a perspective view of a main part showing another example of the skin material folding device.

FIG. 7 is a sectional view showing an example of a conventional apparatus for manufacturing a laminate.

FIG. 8 is a cross-sectional view showing a state in which a core material is pressure-bonded to a back surface of a skin material by a conventional device.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Placement type 11 Surface material placement mold surface 12 Set pin 20 Core material crimping type 21 Mold surface 22 Projection pin 30 Folding device 31 Slide jig 60 Skin material 61 Core material 62 Adhesive

──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-63-41121 (JP, A) JP-A-63-39320 (JP, A) JP-A-63-290728 (JP, A) JP-A-1- 196332 (JP, A) JP-A-61-76330 (JP, A) (58) Fields investigated (Int. Cl. ⁷ , DB name) B29C 51/08 B29C 65/52 B29C 43/20

Claims (2)

(57) [Claims] 1. A method of manufacturing a laminate in which after a skin material is laminated on the surface of a core material, the end of the skin material is folded back to the back surface side of the core material and the end of the core material is wound, wherein an adhesive is applied to the back surface. The coated skin material, or the skin material before the adhesive is applied is placed on the mounting mold surface, and the skin material before the adhesive is applied is thereafter coated with an adhesive on the back surface of the skin material. The core crimping die positioned above the mounting die is provided with a protruding pin which is protrudable from the mold surface of the core crimping die in advance and can be stored therein, and after the core is detachably held at the lower end of the protruding pin, the protruding is performed. After protruding the pin from the mold surface of the core material crimping type and crimping the core material to the back surface of the skin material, and then folding the end of the skin material to the back surface side of the core material,
A method of manufacturing a laminate, wherein the core material crimping die is lowered and the end of the skin material is crimped to the back surface of the core material on the mold surface of the core material crimping type. 2. A mounting die having a surface surface for mounting a skin material, a core crimping die having a die surface facing the die surface of the mounting die and moving up and down above the mounting die, A skin material folding device that folds the skin material end to the core material back side at the side of the stationary mold, wherein the core material crimping die has a protruding pin having a lower end serving as a core material holding portion. An apparatus for manufacturing a laminated body, wherein the apparatus is provided so as to be freely protruded from the mold surface of the core material crimping type.