JP2728597B2 - Manufacturing method of molded panel - 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 for manufacturing a molded panel, and more particularly to a method for performing post-processing on a molded panel after molding.

[0002]

2. Description of the Related Art As a method of manufacturing a molded panel, as shown in JP-A-63-99912, after applying a vacuum to a fixed mold having a vacuum suction hole to set a skin material, There is known a method in which a foaming material is charged, a movable mold is closed, and a molded panel is foamed. Further, when performing post-processing on the molded panel, the molded panel after demolding is set in a post-processing jig based on the back surface of the molded panel, and thereafter, a hole is formed in the molded panel, Post-processing such as outer circumference cutting is performed.

[0003]

However, the build-up of the release agent with respect to the mold, that is, the release agent accumulates on the mold, or an error in the opening / closing accuracy between the fixed mold and the movable mold occurs. In some cases, the thickness of the molded panel is different from the predetermined thickness. For this reason, if a positioning panel is formed by setting a forming panel having a thickness different from the predetermined thickness in the drilling jig, the post-processing is performed between the positioning hole for the post-processing and the surface shape of the forming panel. A positional shift may occur between the applied portion and the surface shape of the molded panel, and the quality of the product may be reduced.

[0004] In view of the above, the present invention provides a method for forming a surface of a molded panel and performing post-processing even if a build-up of a release agent with respect to a molding die or an error in opening / closing accuracy between a fixed mold and a movable mold occurs. It is an object of the present invention to prevent a positional deviation from occurring with a part that has been set.

[0005]

SUMMARY OF THE INVENTION In order to achieve the above object, the present invention relates to a method for forming a molded panel inside a molding die , that is , with respect to the molded panel in a clamped state of the molding die. The positioning hole is formed based on a mold in which the surface shape of the molded panel is molded.

[0006] The resolution means that specifically and taken by the invention, or
Not, fixed and after molding the molded panel with a mold composed of a movable mold, the fixed mold and the movable mold caries ChiNaru shaped in the molding path <br/>, channel in the mold clamped state of the mold Form a positioning hole based on the mold that molded the surface shape of the panel .
You. Then demolded molding panels in which the positioning holes are open mold the mold is formed from a formed shape type. afterwards,
A positioning pin provided on the post-processing jig is inserted into a positioning hole of the molded panel after demolding, and the molded panel is set on the post-processing jig . Thereafter, a post-process is performed on the molded panel.

[0007]

According to the above configuration, a forming die after forming a forming panel.
In the mold clamping state, the positioning hole is formed on the molding panel with reference to the mold of the surface shape of the molding panel, which is the fixed mold or the movable mold. No deviation occurs. For this reason, when the post-processing is performed in a state where the positioning panel of the post-processing jig is inserted into the positioning hole and the molded panel is set in the post-processing jig, the surface shape and the part where the post-processing is performed are performed. No positional deviation occurs between them.

[0008]

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 shows a cross-sectional structure of a molding apparatus 10 used in a method of manufacturing a molded panel according to one embodiment of the present invention. A lower mold 14 is provided on an upper surface of a molding die base 12 of the molding apparatus 10. I have. On the rear side of the upper surface of the mold base 12, inverted L-shaped hinge arms 16, 16 are provided so as to be rotatable in the front-rear direction with respect to the base 12. The mold 18 is held. A slide mold 2 is provided between the lower mold 14 and the upper mold 18.
0 and 20 are arranged, and the slide mold 20 is provided so as to be slidable with respect to the lower mold 14. The fixed mold is constituted by the lower mold 14 and the slide mold 20 described above, and the forming mold 22 is constituted by the lower mold 14, the upper mold 18 and the slide mold 20.

A pair of turning hydraulic cylinders 24, 24 are rotatably mounted on both left and right sides of the upper surface of the molding die base 12, and the piston rods 24a, 24a of each turning hydraulic cylinder 24 are plate-shaped frames 26. Is rotatably held in the front-rear direction. Elevating hydraulic cylinders 28, 28 are attached to the upper surface of the frame 26, and the upper die 18 is held by piston rods 28a, 28a of each of the elevating hydraulic cylinders 28. Therefore,
By operating the hydraulic cylinder for rotation 24 while operating the hydraulic cylinder for lifting and lowering the upper die 18, the upper die 18 approaches or separates from the lower die 14 and the slide die 20.

In FIG. 1, reference numeral 30 denotes a molded panel having a substantially U-shaped cross section formed by a molding die 22. The molded panel 30 is formed into a predetermined shape in advance, and then the lower panel 14 is formed. And a skin 32 made of, for example, vinyl chloride resin, set on the upper surface of the slide mold 20;
On the rear surface side (upper side in FIG. 1) of the base material 2, a base material 34 made of, for example, a hard urethane foam resin molded integrally with the skin 32 is formed. In this case, the surface shape of the molded panel 30 is molded by a fixed mold including the lower mold 14 and the slide mold 20. A cylindrical pin holding portion 36 is provided substantially at the center of the cavity surface of the upper die 18, and the reference pin 38 held by the pin holding portion 36 is inserted into the base 34 of the molded panel 30.

Each slide die 20 is provided with through holes 40, 40 penetrating the slide die 20 inward and outward, and a hydraulic cylinder 42, for drilling, is formed in the outer surface of the slide die 20 where the through hole 40 is opened. A piston rod 42a of the drilling hydraulic cylinder 42 extends into the through hole 40, as shown in detail in FIG. A large diameter portion 44 is provided at the tip of the piston rod 42a.
a large-diameter portion 44 of a cylindrical member 44 composed of a and a small-diameter portion 44b
a is held, and a cylindrical drilling blade 46 having a sharp tip is held outside the small diameter portion 44b of the cylindrical member 44. Inside the cylindrical member 44 and the punching blade 46, an extruding member 48 composed of a tapered round rod-shaped extruding portion 48a and a rod portion 48b holding the extruding portion 48a is slidably provided. Reference numeral 48 is urged toward the forming panel 30 by a coil spring 50 compressed between the pushing member 48 and the small-diameter portion 44b of the cylindrical member 44 between the punching blade 46 and the rod portion 48b.
A receiving member 52 made of, for example, aluminum is provided on a portion of the cavity surface of the upper die 18 facing the tip of the drilling blade 46.

Therefore, as described above , the fixed type (lower die 14 and
Slide 20) and movable mold (after molding the molded panel 30 by using the mold 22 composed of the upper mold 18), as shown in FIG. 3, the hydraulic cylinders for drilling in the mold clamped state of the mold 22 42 Is operated, the extruding member 48 is blocked by the forming panel 30 and does not advance, but the punching blade 46 advances. Therefore, the positioning hole 54 is formed in the forming panel 30 by the punching blade 46 and the receiving member 52. in this case,
The surface shape of the molded panel 30 is the lower mold 14 and the slide mold 2.
0 and the punching blade 46 is the lower die 1
4 is held by the slide mold 20 slidably provided in the lower mold 4 and the lower mold 14 and the slide mold 2 which are the molds for molding the surface shape of the molded panel 30.
It is formed on the basis of a fixed mold made of zero.

Further, since the pushing member 48 is urged toward the forming panel 30 by the coil spring 50, when the punching hydraulic cylinder 42 is operated to retract the punching blade 46, the pushing member 48 becomes Since the cutting blade 46 advances forward relative to the drilling blade 46, the chips left inside the drilling blade 46 are discharged to the outside of the drilling blade 46 .

The molded panel 30 is thus formed.
Further, a positioning hole 54 is formed in the molded panel 30.
Then, the mold 22 is opened to open the positioning holes 5.
Molded panel 30 on which mold 4 is formed is removed from mold 22
Then, the molded panel 30 is carried into a post-processing step.

FIG. 4 shows a cross-sectional structure of a trimming jig 56 as a post-processing jig used for trimming as a post-processing in the method of manufacturing a molded panel according to one embodiment of the present invention. A columnar horizontal positioning base 62 having a positioning recess 60 on the upper surface is provided substantially at the center of the upper surface of the 56 jig base 58.
The positioning recess 60 is formed on the cushion layer 3 of the molded panel 30.
4 is slightly larger than the reference pin 38 inserted in the molded panel 30. The positioning of the molded panel 30 in the horizontal direction is performed by fitting the reference pin 38 into the positioning recess 60. A plurality of columnar temporary support bases 64 are provided at appropriate positions in the peripheral portion on the upper surface of the jig base 58, and the formed panel 30 is placed and supported by the temporary support base 64 in the peripheral portion.

Further, positioning devices 66, 66 are provided near the temporary support base 64 on the upper surface of the jig base 58. The positioning devices 66 are connected to a support base 68 fixed on the jig base 58. A positioning air cylinder 70 fixed to the support base 68, a slide member 72 supported on the support base 68 so as to be slidable inward and outward, and fixed to the tip of a piston rod 70a of the positioning air cylinder 70; And a positioning pin 74 having a conical tip held at the tip of the member 72.

Therefore, as shown in FIG. 5, when the positioning air cylinder 70 is operated after the molded panel 30 is placed and supported on the temporary support base 64, the slide member 72 is moved.
Thus the positioning pin 74 is moved outward, as shown in FIG. 6, the positioning pin 74 is inserted into the positioning holes 54 of the molded panel 30. Thus, the positioning of the molded panel 30 with respect to the trimming jig 56 is performed. In this case, the molded panel 30 with the insert into the positioning holes 54 of the positioning pin 74 is lifted slightly from the temporary support base 64.

Thereafter, the molding panel 3 is fed from the water jet nozzle 78 of the trimming robot 76 shown in FIG.
A water jet is sprayed on the peripheral edge of the “0”, and the peripheral edge of the molded panel 30 (a location indicated by a chain line in FIG. 6).
To trim.

[0020]

As described above, according to the method for manufacturing a molded panel according to the present invention, the mold is held in a state where the mold is clamped.
To form the fixed and the mold was in reference to the positioning holes of the person who molded the surface shape of the molded panel among the movable die relative to the molded panel before demolding the molded panels Mari molding, the positioning holes Since there is no positional deviation from the surface shape, insert the positioning pins of the post-processing jig into the positioning holes, set the molded panel on the post-processing jig, and perform post-processing. There is no positional deviation between the shape and the post-processed portion, and a high quality molded panel can be obtained.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view showing a forming apparatus used for a method of manufacturing a formed panel according to one embodiment of the present invention.

FIG. 2 is a cross-sectional view showing a state before a drilling blade advances in the method of manufacturing a molded panel.

FIG. 3 is a cross-sectional view showing a state after a drilling blade has advanced in the method of manufacturing a molded panel.

FIG. 4 is a sectional view showing a trimming jig and a trimming robot used in the method of manufacturing a molded panel.

FIG. 5 is a cross-sectional view showing a state before a positioning pin advances in the method of manufacturing a molded panel.

FIG. 6 is a cross-sectional view showing a state after a positioning pin has advanced in the method of manufacturing a molded panel.

[Explanation of symbols]

 Reference Signs List 10 molding apparatus 14 lower mold (fixed mold) 18 upper mold (movable mold) 20 slide mold (fixed mold) 22 molding mold 30 molding panel 54 positioning hole 56 trimming jig (post-processing jig) 66 positioning device 70 positioning Air cylinder 74 Positioning pin 76 Trimming robot

Claims (1)

(57) [Claims] 1. A molding tool comprising a fixed mold and a movable mold.
After molding the molded panel Te, based on the type of person who molded the mold in the mold clamped state <br/> the shaped panel above the fixed mold and the surface shape of the movable mold sac ChiNaru shaped panels in Le the positioning holes are formed, then mold opening the mold and demolding the molded panel to the positioning hole is formed from the formed shape type, then the positioning pins provided on the rear working jig demolding A method of manufacturing a molded panel, comprising inserting the molded panel into a post-processing jig by inserting the molded panel into a positioning hole of a later molded panel, and then subjecting the molded panel to post-processing.