JP2867705B2 - Surface material processing equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention is intended mainly for use in manufacturing system kitchens and doors for furniture and the like, in which a surface material is thermally deformed along a curved corner of a workpiece base material. The present invention relates to a surface material processing apparatus for processing a workpiece.

[0002]

2. Description of the Related Art Conventionally, when manufacturing a product in which an appropriate resin surface material is adhered along the surface shape of a base material, a flat surface material is adhered to the base material using an adhesive. However, when the corners of the base material are curved round, the surface material must be bent in order for the surface material to follow the curved corners.

When a melamine resin is used as a surface material,
Since it is necessary to deform by heating, the bending process of the surface layer material made of this melamine resin is performed as follows.

For example, a work in which a surface material is adhered to a base material is conveyed by a conveyor while being heated by an infrared heater or the like, and a plurality of forming rollers arranged at predetermined positions are used to convert the surface material into a curved angle of the base material. Processed to fit along the part. Thereafter, the processed work is naturally cooled, thereby maintaining the shape of the surface material and drying the adhesive.

In this case, the inclination of the forming roller is changed in accordance with the shape of the curved corner of the base material to cope with the problem.

[0006]

However, the above conventional example has the following disadvantages.

[0007] Since heating of the surface material is performed indirectly by radiant heat, it is difficult to uniformly heat the portion to be processed in the surface material. In addition, since the shape of the processed portion of the surface material is maintained and the adhesive is dried by natural cooling, the adhesive is not easily dried, and the processed portion is slightly restored. Thus, it has been difficult to stabilize the quality of the product.

Further, it is pointed out that it is troublesome because the tilting posture of the forming roller must be changed according to the processing shape.

[0009]

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a surface layer processing apparatus which can easily, quickly and provide a high quality finish.

To achieve the above object, the present invention has the following arrangement. That is, the surface material processing apparatus of the present invention is configured to process the surface material by thermally deforming the surface material to the curved corner of the base material in the work obtained by attaching the surface material to the base material having the curved corner. A jig provided with a clamp mechanism for fixing the work in a fixed posture, a heating head for heating the surface material of the work, and a cooling head for cooling the thermally deformed surface material at different angular phases. And a jig support arm to which a processing jig is attached and swings around a predetermined axis.

[0011]

After the work is fixed to the clamp mechanism so that the center of curvature of the curved corner of the work coincides with the pivot axis of the jig support arm, the heating head of the processing jig is moved to the surface layer of the work. The jig support arm is swung while touching the processing target portion. As a result, the surface material is bent along the curved corners of the base material while the surface material is directly heated. Thereafter, the cooling head of the processing jig is directly cooled in a state where the cooling head is applied to the processed portion of the surface layer material.

As described above, the surface layer material can be directly heated and deformed by a series of flows to be cooled.

[0013]

1 to 9 show an embodiment of the present invention. In these figures, W indicates a work, 1 indicates a clamping mechanism, 2 indicates a processing jig, and 3 indicates a jig driving mechanism.

The workpiece W has a flat surface material 7 made of a melamine resin adhered to a flat surface of a base material 6 made of a rectangular plate having curved corners at two short sides via an adhesive before processing. It is.

The clamp mechanism 1 holds the work W from above and below.
And a clamp bar 5 arranged to be able to move up and down.

The processing jig 2 is, as shown in FIG.
A positioning head 8 and a heating head 9 are provided on four surfaces of a rod-shaped main body having a rectangular cross section disposed in front of the clamp mechanism 1 in parallel.
, An air-cooling head 10 and a water-cooling head 11. The positioning head 8 is made of a flat band-shaped metal plate, the heating head 9 is one in which a nichrome wire is embedded in the band-shaped metal plate, and the air-cooling head 10 is one having holes through which cooling air is supplied to the band-shaped metal plate. The water cooling head 11 has holes for supplying cooling water to a strip-shaped metal plate. Although not shown, a supply source of cooling air is connected to a hole of the air cooling head 10, and a supply source of cooling water is connected to a hole of the water cooling head 11 via a flexible pipe.

The jig drive mechanism 3 moves the processing jig 2 necessary for processing. The jig support arm 12 and a pair of right and left jig support arms 12 are rotated around a predetermined axis P _1. A first motor 13 that swings the processing jig, a second motor 14 that rotates the processing jig 2, and a jig support arm 1 that moves the processing jig 2
2. A pair of air cylinders 15 that translate in the longitudinal direction
Is provided. The first motor 13 is laterally attached to the outside of the bracket 16 on one side of the device base 30 via the support base 21. The second motor 14 is used for the processing jig 2
The air cylinder 15 is attached to a stay 23 that bridges and connects the free end of the jig support arm 12 to one end of the rod-shaped main body.

Hereinafter, the details of each of the above components will be described with reference to FIGS.

The jig support arm 12 has its proximal end is swingably supported on a horizontal axis P ₁ around through the rolling bearing 17 to a pair of brackets 16 arranged on the left and right of the device table 30. A large-diameter gear 18 is fixed to the base end of the jig support arm 12, and small-diameter gears 19 meshing with the large-diameter gear 18 are respectively supported on the left and right brackets 16. The left and right small-diameter gears 19 are adapted to rotate synchronously via a support shaft 20 crossing below the clamp mechanism 1, and one end of the support shaft 20 is connected to the first motor 13 via a coupling 22. Are linked.

A pair of brackets 24 are mounted on both ends of the processing jig 2 via rolling bearings (not shown).
Of the piston rod 15a is fixed. The second motor 14 is mounted on one bracket 24 in a horizontal direction. The small-diameter gear 25 provided on the output shaft of the second motor 14 is meshed with the large-diameter gear 26 provided at one end of the processing jig 2, and the processing jig 2 is driven to rotate by the operation of the second motor 14. ing.

The bracket 24 has a rack bar 27.
And a pinion gear 28 that meshes with the pinion gear 28. The left and right pinion gears 28 are connected via a support shaft 29. That is, the rack and pinion mechanism is used to move the processing jig 2 in parallel in the longitudinal direction of the jig support arm 12 by the pair of left and right air cylinders 15 and to move the piston rods 15a of the pair of left and right air cylinders 15 forward and backward. Is for synchronizing.

In the following, the procedure and operation for processing the surface material 7 will be described.

The work W is inserted into the clamp mechanism 1 from the direction of arrow F in FIG. At this time, the work W is in a posture in which the surface material 7 is turned down. Then, as shown in FIG. 4, the processing jig 2 is arranged at a position where the insertion position of the work W is regulated, and the positioning head 8 is made to face the tip of the work W. If the work W is inserted until the work W comes into contact with the positioning head 8 of the processing jig 2,
The positioning is performed. After this positioning,
The work W is fixed by the clamp mechanism 1. In this clamped state, the center of curvature of the curved corner portion R of the work W coincides with the swing center P ₁ of the jig support arm 12.

As shown in FIG. 5, the jig support arm 1
The work jig 2 is positioned below the work W by swinging the work jig 2 clockwise by a predetermined angle, and the heating head 9 of the work jig 2 is moved relative to the boundary between the curved corner R of the work W and the flat surface. Let it. Thereafter, while the surface material 7 of the work W is directly heated by the heating head 9, the jig support arm 12 is swung counterclockwise by a predetermined angle as shown in FIGS. As a result, the surface material 7 is formed into a curved corner portion R of the base material 6.
Will be deformed along.

Once the processing jig 2 is moved away from the work W, and the processing jig 2 is rotated, the air-cooling head 10 is made to face the processed portion of the work W.
Again, the air-cooling head 10 is pressed against the processed portion of the work W (see FIG. 8). Thus, while the air-cooling head 10 is pressed against the work W, the processed part of the work W is forcibly cooled for a predetermined time, thereby cooling the heat to some extent.

Next, the water-cooling head 11 is pressed against the processed portion of the work W (see FIG. 9). In this state, the processing portion of the work W is forcibly cooled for a predetermined time, so that the shape of the surface material 7 is cooled to a temperature at which the shape is stabilized.

Although the example in which the curved corner portion R of the work W is 90 degrees has been described, the swing angle of the jig support arm 12 can be set to a larger or smaller angle. Just adjust and you can easily respond. Moreover, the air cylinder 15 is used to press the processing jig 2 against the workpiece W.
Is used, even if the shape of the curved corner portion R of the work W is elliptical or an appropriate parabolic shape, the surface layer material 7 is adjusted accordingly.
Can be processed. In other words, the locus of the processing jig 2 during processing is basically a perfect circle, but since the air cylinder 15 acts as a damper, the workpiece W
The processing jig 2 can be retracted along the shape of the curved corner of the workpiece W. For this purpose, the processing jig 2 moves so as to draw a processing locus corresponding to the shape of the curved corner of the work W. As a result, the shape of the processing target is no longer limited.

Further, the example in which the surface layer material 7 is bent in accordance with the curved corners on the outer surface of the work W has been described. However, by changing the processing jig 2, it is possible to correspond to the curved portion on the inner surface of the work W. The surface material 7 can be bent.

Further, if air cooling and water cooling are performed during cooling as in the above-described embodiment, distortion generated when rapid cooling is performed can be prevented. Of course, only one of air cooling and water cooling may be used.

The above series of processing steps are as follows:
It is also possible to perform simple automatic control in which the operator simply inputs the type of the work W.

[0031]

As described above, according to the present invention,
Since the bending process is performed while the surface layer material is directly pressed and heated by the heating head provided in the processing jig, the processing can be performed in a uniform heating state. In addition, since the surface material is directly pressed and cooled by the cooling head provided in the processing jig after the processing, it can be cooled and hardened while maintaining the shape of the surface material processed into a predetermined shape, and the base material can be cooled. It becomes possible to dry the adhesive between the surface material. Therefore, the processing quality can be improved simply and quickly, and it can greatly contribute to the improvement of product reliability.

[Brief description of the drawings]

FIG. 1 is a configuration diagram showing an overall appearance of a surface material processing apparatus according to an embodiment of the present invention.

FIG. 2 is a plan view of a jig driving mechanism according to an embodiment of the present invention.

FIG. 3 is a side view of a jig driving mechanism according to the embodiment of the present invention.

FIG. 4 is an operation explanatory view showing a positioning state in one embodiment of the present invention.

FIG. 5 is an operation explanatory view showing a heating processing start state in one embodiment of the present invention.

FIG. 6 is an operation explanatory view showing a state in the middle of heating processing in one embodiment of the present invention.

FIG. 7 is an operation explanatory view showing a state in which heating processing is completed in one embodiment of the present invention.

FIG. 8 is an operation explanatory view showing an air-cooled state in one embodiment of the present invention.

FIG. 9 is an operation explanatory view showing a water-cooled state in one embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Clamp mechanism 2 Processing jig W Work 6 Base material 7 Surface material 9 Heating head 10 Air cooling head 11 Water cooling head 12 Jig support arm

────────────────────────────────────────────────── ─── Continued on the front page (72) Inventor Isamu Endo 32 Akashi-cho, Chuo-ku, Kobe-shi, Hyogo Noritsu Co., Ltd. (56) References JP-A-48-99069 (JP, A) (JP, B2) JP 39-2787 (JP, B1) JP 62-500510 (JP, A) (58) Fields investigated (Int. Cl. ⁶ , DB name) B29C 53/00-53 / 84 B29C 33/02

Claims (1)

(57) [Claims] 1. A surface material processing apparatus for processing a work in which a surface material is adhered to a base material having a curved corner portion so as to conform to the curved corner portion of the base material by thermally deforming the surface material. A processing jig provided with a clamp mechanism for fixing the work in a fixed posture, a heating head for heating the surface material of the work, and a cooling head for cooling the thermally deformed surface material at different angular phases; A jig support arm to which a jig is attached and swings around a predetermined axis.