JP2004075927A - High-speed bonding system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a high-speed bonding system using a bonding fixture to easily form a curved face, using a hot plate having the optimum capacity, shortening the heating and cooling time, improving the production efficiency and giving a product having excellent surface accuracy at a low production cost. <P>SOLUTION: Bonding fixtures 3 are attached to the upper mold Du and the lower mold Dl of a press. The bonding fixture 3 is composed of a plate having a pressing face 2 meeting the curved face or the flat face of the work 1 to be formed as a formed article, i.e. a combination of a comb-shaped longitudinal cross-section and a planar lattice form to form an imaginary plane meeting the shape of the face of the work 1. A hot plate 4 having a laminated structure composed of the 1st and the 2nd metal plates 5a and 5b at the top and bottom and containing a plane heater 6 and a heat-insulator 7 inserted between the plates is attached to the pressing face 2. The bonding of the work 1 can be carried out in a short time. <P>COPYRIGHT: (C)2004,JPO

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
INDUSTRIAL APPLICABILITY The present invention adheres and molds an interior panel (work) having a curved surface to a part of a product such as a side ceiling and a side sliding door for a railway vehicle, or a flat product (work) such as a partitioning door. The present invention relates to a high-speed bonding system used when performing the bonding.
[0002]
[Prior art]
Conventionally used apparatuses include an electric heating panel type, a hot press circulating hot press (such as superheated steam), an autoclave, and an oven (heating furnace).
[0003]
[Problems to be solved by the invention]
However, in the above-described conventional example, the heat capacity of the heating block in the heater portion is large, so that it takes time to heat and cool (for example, if the predetermined temperature is 100 ° C., it takes 20 to 30 to reach that temperature). It takes several minutes until the process is completed.) In the case of an autoclave or an oven heater, since air is a heat medium, thermal efficiency is poor, and heating and cooling require several hours.
[0004]
The present invention has been made in view of the above-described circumstances, and uses an adhesive jig in which a curved surface is easily formed, uses a heating plate having an appropriate capacity, shortens heating / cooling time, improves production efficiency, and It is an object of the present invention to provide a high-speed bonding system in which the surface accuracy of a product is excellent and the cost is low.
[0005]
[Means for Solving the Problems]
The present invention can solve the above-mentioned problems by providing the following configuration.
[0006]
(1) A bonding jig having a pressing surface conforming to a curved surface shape or a planar shape of a work as a molded product is attached to an upper die and a lower die of a press machine, and the first and second bonding surfaces are mounted on the pressing surface. A high-speed bonding system in which a metal plate is provided and a heating plate having a laminated structure in which a sheet-like heating element and a heat insulating material are interposed is applied, and the work of bonding a work can be performed in a short time.
[0007]
(2) In the high-speed bonding system according to the above (1), the bonding jig is formed of a comb-shaped plate having a comb-like vertical cross-section and a planar lattice-like shape that forms a virtual curved surface that matches the curved shape of the workpiece. High-speed bonding system.
[0008]
(3) In the high-speed bonding system according to the above (1), the heating plate covers a surface of the planar heating element, that is, a side in contact with the work with a first metal plate, and a back surface of the planar heating element. A high-speed bonding system in which a second metal plate is attached to the bonding jig via a heat insulating material, and the second metal plate side is configured to be the pressing surface side of the bonding jig.
[0009]
(4) The high-speed bonding system according to the above (1) or (3), wherein the metal plate is an aluminum plate.
[0010]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, embodiments of the high-speed bonding system according to the present invention will be described.
[0011]
FIG. 1 is an explanatory side view showing a configuration of a bonding jig and a heating plate of the high-speed bonding system according to the present invention, and FIG. 2 is a perspective description showing an example of forming a virtual curved surface of the bonding jig of the high-speed bonding system according to the present invention. FIGS. 3 and 3 are explanatory views showing the entire configuration of the high-speed bonding system according to the present invention including a press machine, (a) is a front view, and (b) is an EE cross-sectional view.
[0012]
Hereinafter, embodiments will be described with reference to the drawings.
[0013]
For example, a bonding jig 3 having a press surface 2 conforming to the curved or planar shape of a work (interior panel, door, etc.) 1 as a molded product is provided on an upper mold Du and a lower mold Dl of a press machine of about 5 tons. The first and second metal plates (aluminum plates) 5a and 5b are provided on the front and back sides of the pressurizing surface 2, and a sheet heating element (for example, a silicon rubber heater) 6 and a heat insulating material (a rubber plate or the like) are provided. The work (interior panel) 1 can be bonded in a short time by attaching the heating plate 4 having a laminated structure with the interposition of 7 (see FIGS. 1 and 3 (a) and 3 (b)).
[0014]
As shown in FIG. 2, the bonding jig 3 is formed of a comb-shaped, plate-like body having a comb-like longitudinal section and a plane lattice that forms a virtual curved surface that matches the curved surface shape of the work (interior panel) 1. . Then, A 'of the heating plate 4 having a laminated structure of a heat insulating material 7 such as an aluminum plate 5a, 5b, a silicon rubber heater 6, and a rubber plate so as to engage with A, B, C, D of the bonding jig 3; B ', C', and D 'are attached to the curved pressing surface 2 so as to engage. A bonding jig 3 ′ having a heating plate 4 ′ attached to the upper mold Du side facing the lower mold D1 side is disposed downward, and the work (interior panel) 1 having a curved surface shape can be bonded ( (See FIGS. 3A and 3B).
[0015]
The heating plate 4 covers the surface of the sheet heating element (silicon rubber heater) 6, that is, the side in contact with the work 1 with a first metal plate (aluminum plate) 5 a, and a heat insulating material on the back surface of the sheet heating element 7. A second metal plate (aluminum plate) 5b is adhered via a (rubber plate or the like) 7 and the second metal plate 5b side is configured to be the pressing surface 2 side of the bonding jig 3. .
[0016]
The heating plate 4 sandwiches a planar heating element (silicon rubber heater) 6 between a first metal plate (aluminum plate) 5a and a second metal plate (aluminum plate) 5b. (Aluminum plate) A sandwich structure in which a heat insulating material (rubber plate or the like) 7 is adhered to 5b, that is, a first metal plate 5a, a planar heating element 6, a second metal plate 5b, and a heat insulating material 7 are laminated in this order. Alternatively, a sandwich structure may be used, and the heat insulating material 7 side may be configured as the pressing surface 2 side of the bonding jig 3.
[0017]
In the embodiment, the metal plate is described as an aluminum plate. However, any material that meets thermal conductivity, moldability, and other conditions can be used.
[0018]
ADVANTAGE OF THE INVENTION According to the high-speed bonding system which concerns on this invention, the bonding process of the sandwich panel which consists of a surface material and a core material can be carried out firmly and in a short time, using a thermosetting adhesive.
[0019]
In addition, as an example, according to the conventional system, even in a panel where the bonding operation took 8 hours at 50 ° C., according to the high-speed bonding system of the present invention, the panel was completed in 10 to 20 minutes at 80 ° C. The decorative sheet was not discolored, there was no distortion or warpage, and the finish was good.
[0020]
The moldable range is 3200 × 1530 mm, and applicable panels are various decorative plates, stainless plates, aluminum plates, iron plates and the like.
[0021]
As an example of a bonded product (work), a part of its specification is shown below.
Inside: Al (aluminum plate) t1.0, decorative sheet pasting Outside: Al (aluminum plate) t0.5
Core material thickness: t17
Met.
[0022]
The metal plates 5a and 5b made of aluminum or the like serving as the front plate and the back plate of the heating plate 4 used for the bonding jig 3 are usually preferably made of a thin plate material, and are hardly distorted or warped. I hope it can be maintained. The thickness is adjusted according to the degree of the curved surface and the degree of surface accuracy of the workpiece.
[0023]
As an example, there is an example in which the thickness of the metal plates 5a and 5b serving as the heating plate of the bonding jig used in the manufacture of the work 1 is 2 mm (aluminum plate). However, it is easy to adjust to the curvature of the pressing surface of the bonding jig 3. Also, judging from the degree of surface accuracy of the work 1, the thickness of the metal plates 5a and 5b serving as heating plates is preferably about 1.5 to 6.0 mm.
[0024]
Further, the present invention is most effective for a panel having a curved surface, but of course is also effective for a panel having a flat surface.
[0025]
In this embodiment, the surface accuracy means a smooth surface that maintains a desired curved surface shape and has no local distortion or warpage.
[0026]
【The invention's effect】
As described above, according to the present invention, using a bonding jig on which a curved surface is easily formed and using a heating plate having an appropriate capacity, the heating / cooling time is shortened, the production efficiency is improved, and the product A high-speed bonding system with excellent surface accuracy and low cost can be provided.
[Brief description of the drawings]
FIG. 1 is a side view showing a configuration of a bonding jig and a heating plate of a high-speed bonding system according to the present invention. FIG. 2 is a perspective view showing an example of forming a virtual curved surface of a bonding jig of a high-speed bonding system according to the present invention. FIG. 3 is an explanatory view showing an overall configuration including a press machine of the high-speed bonding system according to the present invention, (a) a front view, and (b) a cross-sectional view taken along EE.
1 work (interior panel, door, etc.)
2 Pressing surface 3 Jig for bonding (comb type jig)
3 'bonding jig (comb jig)
4 Heating plate 4 'Heating plate 5 Metal plate (aluminum plate)
5a First metal plate (first aluminum plate)
5b 2nd metal plate (2nd aluminum plate)
6. Planar heating element (rubber heater)
7 Insulation material (rubber plate)
Du Upper type Dl Lower type

Claims (4)

A bonding jig having a pressing surface conforming to the curved surface or planar shape of the molded workpiece is attached to the upper and lower dies of the press machine, and the first and second metal plates are provided on the pressing surface. And a heating plate having a laminated structure in which a sheet heating element and a heat insulating material are interposed. 2. The high-speed bonding system according to claim 1, wherein the bonding jig is formed of a comb-shaped vertical cross-section and a planar grid-shaped combined plate that forms a virtual curved surface that matches the curved shape of the workpiece. High-speed bonding system. 2. The high-speed bonding system according to claim 1, wherein the heating plate covers a surface of the sheet heating element, that is, a side in contact with the work with a first metal plate, and a heat insulating material is provided on a back surface of the sheet heating element. 3. A high-speed bonding system characterized in that a second metal plate is adhered through the second metal plate, and the second metal plate side is configured to be the pressing surface side of the bonding jig. The high-speed bonding system according to claim 1, wherein the metal plate is an aluminum plate.

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