JPH09267378A - Continuous composite material with changing crosssectional face, its production and apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To easily manufacture a continuous composite material with high decorative properties wherein both crosssectional shapes of a continuous molded material and a resin part are changing by means of extrusion molding and to manufacture continuously the continuous composite material under a condition where the whole body is integrated and exhibits excellent appearance by using a simple apparatus. SOLUTION: Continuous molding materials 2 with common crosssectional part 2b with approximately the same crosssectional shapes along the longer direction and with changing crosssectional part 2a with changing crosssectional shapes changing along the longer direction are continuously fed in the longer direction in a mold 26 for extrusion molding with a fixed mold 31 and the first and second movable molds 32a and 32b and the common crosssectional part 2a and the changing crosssectional part 2a are respectively passed through in the longer direction in accordance with respectively the fixed mold 31 and the first movable mold 32a and while the first movable mold 32a is moved, a resin is extruded from an orifice 45 and the second movable mold 32b is moved and the resin flow is divided by means of a cutter 48 and a resin part 3 with a changing crosssectional shape is formed thereby on a changing crosssectional part.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a long composite material whose cross-sectional shape changes in the longitudinal direction, particularly a long composite material suitable for a decorative member for a vehicle, and a method and an apparatus for manufacturing the same. . Specific examples of the vehicle decorative member include drip molding, weather strip retainer molding, roof side visor molding, window molding, body side molding and the like.

[0002]

2. Description of the Related Art FIG. 8 is a front view showing a long composite material used as a drip molding as one of vehicle decoration members. In the figure, 1 is a long composite material used as drip molding, and a long molding material 2 whose cross-sectional shape changes along the longitudinal direction, and this long molding material 2
It is formed of resin portions 3 and 4 fixed along the.

The long composite material 1 is integrally formed with a front portion 1a along the front pillar panel 6a of the vehicle body, a center portion 1b along the roof panel 5, and a rear portion 1c along the rear pillar panel 6b. 1b is formed to have a substantially constant cross-sectional shape, and the cross-sectional shapes of the front portion 1a and the rear portion 1c are changed. 7a is a front window, 7b is a rear window, 8a is a front door, 8b is a rear door, 9a is a front fender panel, and 9b is a rear fender panel.

The widths of the front portion 1a, the center portion 1b and the rear portion 1c of the long composite material 1 are W ₁ , W ₂ and W ₃ , respectively.
Then, W ₂ is almost constant along the longitudinal direction,
The widths of W ₁ and W ₃ each gradually increase from the width of W ₂ toward the tip, and the cross-sectional shape changes correspondingly.

A resin portion 4 is used as such a long composite material 1.
The cross-sectional shape of is substantially constant in the longitudinal direction, and the cross-sectional shapes of the long molding material 2 and the resin portion 3 can be changed substantially corresponding to the shape of the long composite material 1. In this case, the long molded material 2 is assumed to be composed of a changed cross-section 2a whose cross-sectional shape changes and a common cross-section 2b having a constant cross-sectional shape. Two
It is conceivable to form the resin portion 4 on b.

As a conventional method for producing a molded product in which the cross-sectional shape of the long molding material 2 changes, a long metal plate is press-molded to form a metal long molding material 2 and then a resin is formed by injection molding. Generally, the parts 3 and 4 are integrally formed, or the resin parts 3 and 4 separately formed by extrusion molding are fixed by an adhesive or the like.

[0007]

However, in the above-mentioned long composite material, the width and the cross-sectional shape of the long molding material change, but the width and the cross-sectional shape of the resin portion do not change, so that it is not necessarily decorative. I cannot say that I am satisfied. Further, in the above-mentioned conventional manufacturing method, since a large mold is required as a press mold or an injection mold, it is not possible to substantially integrally mold the mold, and it is necessary to mold the whole in two or three parts. However, when these are joined, the strength of the joined portion is reduced or the joined portion is exposed, and the appearance is likely to be damaged. When the resin portion is fixed with an adhesive or the like, it is a manual work, which requires a lot of man-hours, and it is difficult to uniformly fix the resin portion.

In order to solve the above problems, the object of the present invention is to change the cross-sectional shape (width and / or cross-sectional area) of the resin portion as well as the long molding material, so that the cross-sectional shape with high decorativeness changes. To obtain a long composite material. Another object of the present invention is to continuously manufacture a composite long molded product having a variable cross-sectional shape by extrusion molding using a simple apparatus in a state where the whole is integrated and has an excellent appearance. To obtain a manufacturing method and apparatus.

[0009]

SUMMARY OF THE INVENTION The present invention is the following cross-section varying long composite material, and its manufacturing method and apparatus. (1) A long molding material having a common cross-section portion having substantially the same cross-sectional shape along the longitudinal direction and a changed cross-section portion having a cross-sectional shape varying along the longitudinal direction, and a change of the long molding material. A cross-section-change long composite material, comprising a resin portion which is attached so that its position changes along the cross-section portion and whose cross-sectional shape changes along the longitudinal direction. (2) The cross-sectional change long composite material according to (1) above, wherein the long molding material is a metal profile. (3) The cross-section-change long composite material according to (2) above, wherein the metal profile is a roll-formed product of a metal strip. (4) The long cross-section composite material with a changed cross section according to (2), wherein the metal profile is an extruded metal material. (5) The above (1) in which the resin portion is made of an extruded resin material.
(4) A cross-section-change long composite material according to any one of (4) to (4). (6) The extrusion mold having the fixed mold and the first and second movable molds has a common cross-section portion having substantially the same cross-sectional shape along the longitudinal direction and a cross-sectional shape changing along the longitudinal direction. A long molding material having a changing cross section is continuously supplied in the longitudinal direction, and a common cross section of the long molding material corresponds to the fixed mold of the extrusion molding mold and a changing cross section corresponds to the first movable mold. While allowing the first movable mold to move in the longitudinal direction and moving the first movable mold in the changing direction of the changing cross section intersecting the passing direction of the long molding material as the changing cross section passes in the longitudinal direction. The resin is extruded from the extrusion port formed in the first movable die, the second movable die is moved to change the extrusion shape of the resin extruded from the first movable die,
A cross-section-change long composite characterized in that a composite material is obtained by forming a resin portion that is continuous in the longitudinal direction and changes in cross-section shape in the change cross-section of a long molded material in response to the change. Method of manufacturing wood. (7) The method according to (6) above, wherein a long molding material obtained by bending a metal strip is used as the long molding material. (8) The method according to (7) above, which uses a long molding material obtained by bending a metal strip by roll molding. (9) The method according to any one of (6) to (8) above, wherein a continuous long molding material is supplied to an extrusion molding die to form a resin portion and then cut at a predetermined position. (10) The method according to any one of the above (6) to (9), wherein the long molding material cut into a predetermined length is sequentially supplied to the extrusion mold. (11) The method according to (6) above, which uses a long molded material which is made of a metal extruded material and is cut into a predetermined length in advance. (12) The method according to any one of the above (6) to (11), wherein resin is extruded from a resin extruding port formed in a fixed mold to form a resin portion continuous in the longitudinal direction also in the common cross-section. (13) The method according to any one of (6) to (12) above, wherein after the resin portion is formed, the cross-sectional shape of the long molded material is further changed. (14) Continuously supplying in the longitudinal direction a long molding material having a common cross-sectional portion having substantially the same transverse sectional shape along the longitudinal direction and a changed sectional portion having a transverse sectional shape changing along the longitudinal direction. Then, an extrusion molding die for forming a resin portion along the longitudinal direction is provided on the supplied long molding material, and the extrusion molding die is an extrusion molding die so as to pass through a common cross-section portion of the long molding material. The fixed die provided, and the first die provided on the extrusion die so as to pass through the changed cross section of the long molding material.
And a second movable mold independent of the first movable mold, the first movable mold having a resin extrusion port, and a long molding material corresponding to passage of the changed cross section. Crossing the passage direction of the resin and moving in the direction of change of the changing cross section, resin is extruded from the extrusion port to form a resin portion on the changing cross section corresponding to the change, and the second movable mold is 1. A composite material is manufactured by changing the extruded shape of the resin extruded from the movable mold No. 1 to change the cross-sectional shape of the resin portion to manufacture a composite material with a changed cross-section. apparatus. (15) The device according to (14) above, which is provided with a drive device that controls the amount of movement of the movable mold according to the amount of passage of the long molding material. (16) The apparatus according to (14) or (15) above, further comprising a roll forming device that bends and forms a metal strip to form a long formed material on the upstream side of the extrusion molding die.

The long composite material produced in the present invention has a long cross section having a common cross section having substantially the same transverse cross section along the longitudinal direction and a variable cross section having a transverse cross section changing along the longitudinal direction. A cross-section-change long composite material in which a resin portion whose cross-sectional shape changes is fixed along the change cross-section of the molding material, whereby the overall cross-sectional shape greatly changes. The changed cross section includes one having a constant cross-sectional area but different shape dimensions, and one having a different cross-sectional area and a change in shape dimension.

As the long-sized forming material, a metallic profile material such as a stainless steel plate, which is formed by bending a bright metal strip into a predetermined sectional shape by roll forming or the like, or a metallic profile material such as a profile extrusion material such as an aluminum alloy. However, it may be a profiled material of synthetic resin or rubber having a different appearance and physical properties from the resin portion described later. This long shaped material is formed so as to have a cross-sectional shape in which a common cross-sectional portion having substantially the same shape and a changed cross-sectional portion whose cross-sectional shape changes along the longitudinal direction are integrated throughout the entire length. The material is not particularly limited, and may be metal or resin, or may be soft or hard.

The resin portion is formed of an extrudable resin material such as synthetic resin or rubber having physical properties and colors different from those of the long molding material, and its cross-sectional shape changes along the longitudinal direction. . The resin portion is formed on the changed cross-section portion of the long molded material, but may be formed on the common cross-section portion, and the formation position and the number thereof can be arbitrarily selected as desired. When forming in the common cross section, the cross-sectional shape does not have to change, but may change.

The above-described manufacturing apparatus for manufacturing the long composite material is provided with an extrusion molding die for supplying a long molding material to perform extrusion molding of a resin, and the extrusion molding die has a common cross section of the long molding material. The fixed die that passes through the section and the changing cross section of the long molding material, and the resin is extruded from the extrusion port while moving in the crossing direction of the long molding material as the changing cross section passes. A first movable die for forming a resin portion on the changed cross section and a second movable die for changing the cross-sectional shape of the resin portion by changing the extrusion shape of the resin extruded from the first movable die. Have.

The first movable die is provided with a resin extrusion port for forming a resin portion, and the second movable die is configured to change the extrusion shape of the resin extruded from this extrusion port. There is. When the resin portion is formed in the common cross-section portion, the fixed die may be provided with a resin extrusion port, and when the cross-sectional shape of the resin portion is changed, the first and second resin portions are also formed in this portion. A movable mold can be provided.

The extrusion mold is preferably provided with a drive device for controlling the movement (movement amount, moving speed, etc.) of the first and second movable dies according to the movement amount of the long molding material. Further, when the metal strip is roll-formed to form a long formed material, a roll-forming device can be provided on the upstream side of the extrusion mold, and in this case, the width direction of the metal strip varies in the longitudinal direction. It is preferable to provide a slitter for continuously slitting a part of the above to partially remove it.

In the manufacturing method using the above apparatus, the common cross section of the long molding material is passed along the fixed die of the extrusion molding die, and the changed cross section is passed along the first movable die.
While extruding the resin from the extrusion port formed in the first movable mold while moving the first movable mold in a direction intersecting the passage direction of the long molding material corresponding to the passage of the changed cross-section,
By moving the second movable die to change the extruded shape of the resin extruded from the first movable die, and forming a resin portion whose cross-sectional shape changes in the changed cross-section, the cross-sectional shape as a whole A long composite material with a large change in In this case, an extrusion port can be formed in the stationary die, and a resin portion can be formed also in the common cross section.

The continuous molding material may be continuously supplied to the extrusion molding die as it is, or may be sequentially cut into a predetermined length slightly longer than the length of the final product. In the former case, for example, a metal strip is continuously fed and supplied, and a slit for changing the slit width, bending forming to a predetermined cross-sectional shape, and the like are performed on the way to form a common cross section and a changed cross section. In this case, before the extrusion molding, it is formed in a shape similar to the cross-sectional shape of the final product, and after the extrusion molding, it can be further formed into a final cross-sectional shape by bending or the like, and thereafter, the above-described predetermined shape can be obtained. Can be cut to length. In the latter case, for example, a profile extrusion molded product of a metal such as an aluminum alloy may be cut into a predetermined length which is the same as or slightly longer than the length of the final product, and the product may be sequentially supplied to the extrusion mold.

In the long composite material obtained as described above, both the changed cross-section and the cross-sectional shape of the resin part of the long-formed material change. Therefore, even if one change is small, a large change is obtained as a whole, and the decoration is improved. A long composite material having high properties can be obtained. Further, its production can be efficiently carried out by extrusion molding, and an excellent appearance can be obtained.

[0019]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a front view showing a long composite material as a drip molding for a vehicle according to an embodiment, FIG.
1A is a sectional view taken along the line AA of FIG. 1, and FIG.
8C is a sectional view taken along line CC, and the same reference numerals as those in FIG. 8 indicate the same or corresponding portions.

The long composite material 1 is a long molding material 2 made of a metal profile formed by bending and forming a metal strip material of bright stainless steel plate, and a long molding material fixed to the changed cross section 2a and the common cross section 2b. 2 is composed of resin parts 3 and 4 which are colored differently. The long molded material 2 has a common cross-section portion 2b having a substantially constant cross-sectional shape along the longitudinal direction,
The changed cross-section portion 2a whose lateral cross-sectional shape changes along the longitudinal direction has a protruding shape so that the protruding length changes.

The cross-sectional shape of the resin portion 3 changes along the longitudinal direction, and with the change of the cross-section of the changed cross-section portion 2a,
It is fixed so that the mounting position changes. The resin portion 4 has a substantially constant cross-sectional shape along the longitudinal direction, and is fixed at substantially the same position along the common cross-section portion 2b.

On the common cross-section 2b of the long molded material 2, a mounting portion 11 for a vehicle body panel (roof panel 5, front pillar panel 6a, rear pillar panel 6b), holding portions 12 and 13 for weather strips, etc. are bent. It is formed by. The folded section 14 is formed in the changing cross section 2a. In the front part 1a and the center part 1b,
As shown in FIGS. 2A and 2B, the resin portion 3 is a receiving groove for water droplets that flow away from the front pillar panel 6a or the roof panel 5 and that flow laterally from the front window 7a and water droplets that flow down from the roof panel 5, respectively. In the rear portion 1c, as shown in FIG. 2 (c), the resin portion 3 contacts the rear pillar panel 6b and forms a water channel inside.

The metal plate is exposed at the outside of the vehicle between the resin portions 3 and 4 near the boundary between the changed cross-section 2a and the common cross-section 2b to form a bright portion 15. Colored resin parts 3, 4 and bright part 15
Form a design part that is visible from the outside. In the present embodiment, the boundary between the changed cross-section 2a and the common cross-section 2b is not necessarily clearly defined. For example, the holding portions 12 and 13 are common cross-sections, and the other portions are changed cross-sections. It can also be considered a department. That is, the changed cross section 2a
Is not necessarily limited to the portion that is absolutely changed, and may partially include the common cross-section portion. 2 (b)
It is also possible to regard the portion other than the folded-back portion 14 as the common cross-section portion 2b in the cross-section shown in FIG. 2 and the extended portion shown in FIGS.

The widths of the design portions of the front portion 1a, the center portion 1b, and the rear portion 1c of the long molded material 2 are each X.
_If X is ₁ , X ₂ and X ₃ , then X ₂ is almost constant, and X ₁ and X ₃
Respectively, the width gradually increases from the width of X ₂ toward the tip. This enlarged portion is the changed portion of the changed cross-section portion 2a of the long molded material 2 as it is. Also, assuming that the protruding width of the resin portion 3 is Y ₁ , Y ₂ , and Y ₃ , Y ₂ is almost constant, and Y ₁ gradually increases from the width of Y ₂ toward the tip, but Y ₃ Is almost constant over a width of Y ₂ . Thus, the cross-sectional shape of the changed cross section 2a is
The shape is not limited to one that is constantly changing over the entire length, and the same cross-sectional shape may be maintained partially like the center portion 1b. On the other hand, the resin portion 4 has substantially the same width and the same cross-sectional shape over the entire length. Therefore, the width of the long molding material 2 (X _{1 to} X ₃ ) and the width of the resin portion 3 (Y ₁ to X ₃
Y ₃ ), and the cross-sectional shape change, the width and overall width (W _{1 to} W ₃ ) and the cross-sectional shape of the bright portion 15 of the long composite material 1 change substantially.

In the long composite material 1 of the present invention, both the changed cross-sectional shape 2a of the long shaped material 2 and the cross-sectional shape of the resin portion 3 change, so that a large change can be obtained as a whole even if one change is small. To be Further, if the changed portion of both is made to be, for example, the front portion 1a of the resin portion 3, a highly decorative portion can be obtained, and by changing the manner of change like the change at the rear portion 1c, a higher decorative portion can be obtained. can get.

FIG. 3 is a system diagram showing the manufacturing apparatus of the embodiment,
FIG. 4 is a sectional view taken along line DD of FIG. 4, FIG. 5 is a sectional view taken along line EE of FIG.
FIG. 6 is a front view of the long composite material before cutting. In FIG. 3, 20 is an uncoiler, 21a, 21b and 21c are roll forming machines, 22 is a slitter, 23 is an adhesive coating device, 24 is an adhesive baking device, 25a and 25b are detecting devices, and 26 is an extruder. An extrusion mold provided at the tip of (not shown), 27 is a cooling device, 28 is a take-up machine, 29 is a cutting device, and 30 is a control device.

As shown in FIGS. 4 and 5, the extrusion mold 26 includes a fixed mold 31, a first movable mold 32a, and a second movable mold 3.
2b, and a resin supply path 3 connected to the tip of the extruder.
3 The holding member 3 having resin passages 34 and 35 formed in the fixed die 31 and a passage 36 for the long molding material 2.
7 are provided. The passage 36 of the holding member 37 has a cross-sectional shape substantially corresponding to the cross-sectional shape of the long molded material 2 so as to allow the long molded material 2 to pass therethrough.
And a passage 36b through which the common cross section 2b passes. The resin flow passage 34 communicates with the first movable die 32a, and the resin flow passage 35 has an orifice 38 at a position where the resin portion 4 is formed in the common cross-section portion 2b of the long molding material 2.
Having.

The first movable die 32a is slidable with respect to the fixed die 31 by the arc-shaped guide members 39a, 39a on both sides, and is movable in the direction orthogonal to the passing direction of the long molding material 2, and the rod is formed. The drive device 40a can move forward and backward via 41a. The first movable die 32a is formed with a passage 36c through which the folded-back portion 14 of the changed cross-section 2a of the long molded material 2 passes, and a holding portion 42 is formed at the tip thereof to engage with an adjacent portion of the folded-back portion 14. And hold this.

A resin flow path 43 is formed in the first movable die 32a, and one end of the resin flow path 43 becomes a slot-like communication port 44 at a position corresponding to the fixed type orifice 34a to communicate with the resin flow path 34. The resin discharged from the fixed orifice 34a is received. The other end of the resin flow path 43 is opened as an orifice 45 on the second movable die 32b side. An electric motor is used as the drive device 40a, and is rotatably attached to a support base 47 by a pin 46.

The second movable die 32b is the first movable die 32.
The guide members 39b, 39b provided on the a slide along the first movable die 32a so as to be movable in the direction orthogonal to the passage direction of the long molding material 2, and the second member via the rod 41b. The drive device 40b of FIG. The orifice 4 is provided at the tip of the second movable die 32b.
A cutter 48 for dividing the resin flow extruded from the nozzle 5 is provided, and a resin discharge passage 49 is formed adjacent to the cutter 48. The first drive device 4 is used as the second drive device 40b.
Similar to 0a, electric motors such as AC servo motors and stepping motors having a mechanism for converting rotational motion into linear motion are preferable in terms of controllability and accuracy, but both drive devices may be fluid pressure cylinders.

In order to obtain the long molded material 2 in the method for producing a long composite material using the above-mentioned apparatus, for example, JP-A-7-89 is used.
As disclosed in No. 353, first, the uncoiler 20
Then, the metal strip 16 is sent out from the above and is bent and formed by a normal roll forming machine 21a to form an intermediate member 17 made of a metal profile having a constant cross-sectional shape having a cross-section corresponding to the common cross-section 2b. A part of the intermediate member 17 has a peripheral length substantially equal to the length of the finished product of the long forming material 2 so that the width thereof changes along the longitudinal direction, and the peripheral surface has A slit is formed by a roll-type slitter 22 having a slit blade to form a changed cross section 2a. The surplus material 18 slit is discharged as it is. Similar to the roll type slitter, the remaining intermediate material 17 has a circumference whose one circumference is substantially the same as the length of the finished product of the long molding material 2 and has a molding surface of a predetermined shape on the peripheral surface. Further, the roll forming machine 21b provided with the bending section 14b is formed to form a shape in which the folded-back portion 14 separates from or approaches the common cross-section portion 2b, and the changed cross-section portion 2a as shown in FIG.
And the long molded material 2 which has the common cross-section 2b is formed.

A method using a roll type slitter 22 having a circumference that substantially matches the length of a finished product of the long molding material 2 as in the above embodiment and a roll forming machine 21b similar to the above embodiment. Alternatively, a focused thermal energy cutting scheme such as laser beam cutting may be used for the slits. Regarding the forming of the changed cross-section portion 2a, the changed cross section is controlled by moving the forming roll in the roll axial direction so as to correspond to the width that changes with the movement of the intermediate member 17 slit in the change width in the longitudinal direction. The part 2a may be formed. Such a roll forming method is disclosed, for example, in JP-A-6-32.
No. 8147.

The long molding material 2 is coated with a heat-activatable liquid adhesive on the positions where the resin portions 3 and 4 are formed by the coating device 23, and is cured and activated by the baking device 24. Instead of the coating device 23 and the baking device 24, other fixing means may be provided, for example, a perforation device for forming a hole for connecting and fixing the resins. After that, the long molding material 2 is extruded while detecting the position and the supply amount of the long molding material 2 supplied to the extrusion molding die 26 by a detection device 25a such as a position sensor that detects the changing position of the changed cross-section 2a. Extrusion is carried out by supplying the mold 26 at a constant rate. The detection signal of the detection device 25a is input to the control device 30.

In the extrusion molding die 26, the drive devices 40a and 40b are driven by the drive signal from the control device 30 in response to the detection signal of the detection device 25a, and the first and second movable dies 32a and 32b are moved forward, Retreat. At this time, the detection device 25a detects the change amount and the supply amount of the changed cross section 2a, and the detection device 25a and the first and second movable molds 32a,
The control device 30 changes from the distance from 32b and the supply speed, and the corresponding portion of the cross section 2a is moved to the first and second movable molds 32.
The time to reach the positions of a and 32b is calculated, and the drive signal is output in accordance with this time, and the timing and the moving speed and the moving amount of the forward and backward movements of the first and second movable molds 32a and 32b are calculated. Configured to control. Long forming material 2
Is rigid like a metal profile, the change portion of the change cross section 2a due to the passage of the long shaped material 2 is used as a cam,
When the movable die 32a can be moved forward and backward by the cam action using the first movable die 32a as a cam follower, the drive device 40a can be omitted.

As described above, the first and second movable molds 32
The passage 3 of the passage 36 provided in the holding member 37 of the extrusion molding die 26 for the long molding material 2 while advancing and retreating the a and 32b.
6b is passed through the common cross section 2b, and passages 36a and 36c are passed through the changed cross section 2a, and the resin 19 is supplied from the resin supply path 33 to perform extrusion molding. At this time, the resin 19 is the fixed mold 31.
Resin 19b flowing in the resin flow paths 35, of which resin 19b is extruded from the orifices 38, and the resin section 4 is continuously connected to the common cross section 2b of the long molding material 2 in the longitudinal direction. To form.

On the other hand, the resin 19a flowing through the resin flow path 34 is received from the orifice 34a of the fixed die 31 at the communication port 44, flows through the resin outflow passage 43 of the first movable die 32a, and is extruded from the orifice 45. Here, the second movable mold 32
The tip of b is divided by a blade-shaped cutter 48 with a sharp tip,
A part thereof forms the resin portion 3 on the changed cross-section portion 2a of the long molded material 2, and thus the long composite material 1 shown in FIG. 6 is formed. The divided remaining portion is discharged from the resin discharge port 49 as discharge resin 19c. The discharged resin can be reused after being appropriately treated.

At this time, the common cross section 2b of the long molding material 2 passes through the passage 36 of the fixed die 31 so that the long molding material 2 is centered on the direction intersecting the traveling direction and the axis of the long molding material 2. The common cross-section portion 2b advances while maintaining the same position and posture in the molding die 26 while being prevented from moving in the direction of rotation and positioned. In this case, long molding material 2
The widths X _{1 to} X ₄ of the first movable mold 32a move forward and backward in the directions of arrows P and Q by the drive device 40a in response to the change of the widths X _{1 to} X ₄ , so that the changed cross section 2a.
The folded-back portion 14 formed at the tip of the first movable die 32a always passes through the passage 36c of the first movable die 32a. As a result, the resin portion 3 is always formed at the tip of the changing cross section 2a.

On the other hand, the second movable mold 32b is advanced on the first movable die 32a, the driving unit 40b in response to changes in the protrusion width Y ₁ to Y ₃ in the resin portion 3 R, in S direction, backward Therefore, the position of the cutter 48 changes. As a result, the extrusion amount of the resin for forming the resin portion 3 out of the resin extruded from the orifice 45 in a constant shape by a constant amount substantially changes, and as a result, the cross-sectional area of the resin portion 3 changes, and the resin portion 3 changes. 3 is fixed to the changed cross-section portion 2a of the long molded material 2 in a state where the cross-sectional shape changes in the longitudinal direction. In this way, the long composite material 1 whose transverse cross-sectional shape changes in the longitudinal direction is manufactured. In addition, during extrusion molding with the second movable die, the cutter 48
Alternatively, the cross-sectional shape of the resin portion 3 can be changed by cutting off the extruded resin. In this case, the resin flow of the blocked portion is taken out from another opening so that the resin pressure does not change in the extrusion molding die 26, or the resin flow rate supplied to the extrusion molding die 26 is changed so as to be decreased. Measures are needed.

As shown in FIG. 5, while the portion of the long molded material 2 having the minimum width X ₂ passes through the first and second movable molds 32a and 32b, the first movable mold 32a is shown by a solid line. The center portion 1b is formed by advancing to the position. At a portion where the long molded material 2 further advances and the width thereof expands as X ₃ (or X ₁ ), the first and second movable molds 32a and 32b retract, and the rear portion 1c (or the front portion 1a). ) Is formed. When the long molded material 2 reaches the maximum width X ₄ , the first and second
The movable dies 32a, 32b are retracted to the positions of the chain lines 32c, 32d, and extrusion molding is performed for a while at this position to form the grip margin 1d. After that, the long molding material 2 decreases in width X
_{At the 1} (or X ₃ ) portion, the first and second movable molds 32a and 32b move forward to form the front portion 1a (or the rear portion 1c).

The second movable mold 32b gradually retreats when forming the front portion 1a and forms the resin portion 3 whose projection width Y ₁ gradually increases, but retreats when forming the rear portion 1c. The resin portion 3 is formed which maintains the state and has a substantially constant protrusion width Y ₃ .

In FIG. 4, the changing cross-section portion 2a of the long molded material 2 passing through changes along the arc shape. Therefore, in response to this change, the first movable die 32a moves along the arc-shaped guide members 39a and 39a. When moving in an arc shape, the drive device 40a is rotated by the pin 46 in order to respond to the movement. However, in the case where the changing cross section 2a changes linearly, the first movable die 32a is linear. The drive device 40a may be fixed so as not to rotate because it moves in a circular shape.

The long composite material 1 formed as described above is cooled by the cooling device 27 to cure the resin portions 3 and 4, and the take-up machine 2
The roll forming machine 21 may be used if necessary in the process.
Post-molding is performed at c to further change the cross-sectional shape. When forming by the roll forming machine 21c, part of the roll forming machines 21a and 21b can be omitted. An example of using such a roll forming machine 21c is suitable when forming a convex forming portion 14a on the changed cross-section portion 2a as shown in FIGS. 7A to 7C described later.

After that, the position of the long composite material 1 is detected by the detection device 25b as in the case of the detection device 25a, and the cutting device driven by the drive signal calculated by the control device 30 from the detection signal of the front part 1a. At the terminal side position (same as the terminal side position of the rear portion 1c), cut into a certain length. The cutting device 29 is such that the cutting blade 29a is a long composite material 1.
It is configured to perform cutting while moving at the same speed, and a drive signal is sent from the distance between the detection device 25b and the cutting blade 29a to cut at a predetermined cutting position. The cutting position Z is the grip margin portion 1 of the maximum width W ₄ of the long composite material 1 in FIG.
It is set so as to be approximately at the center of d. When the long composite material 1 is composed of the front portion 1a and the center portion 1b or the center portion 1b and the rear portion 1c, the rear end side position Z _{1 of the} center portion is respectively formed.
Alternatively, the cutting is performed at the front end side position Z ₂ of the center portion 1b.

The long composite material 1 cut into a certain length is clamped at the gripping margin 1d of the maximum width W ₄ portion (the portion corresponding to X ₄ in FIG. 5) formed at both ends thereof, and the front portion 1a and Around the boundary between the rear portion 1c and the center portion 1b, after bending the axis by stretch bending or the like so as to have a small radius of curvature that matches the radius of curvature of the vehicle body panel, the portion of the gripping margin is cut and the long length shown in FIG. The composite material 1 is obtained.
It should be noted that when axial bending is performed using a press die or a CNC bending device, a gripping margin is not required, so that the shape is adjusted so that extrusion molding does not require a grasping margin. Also, when the vehicle body panel has a radius of curvature even in a portion other than the vicinity of the boundary, bending or twisting is applied so as to match the radius.

In the above-mentioned manufacturing method, the long molded material 2 is formed by bending the bright metal strip 16 such as a stainless steel plate, but an extruded material of an aluminum alloy cut in advance to a predetermined length is used. In this case, the roll forming machines 21a to 21c may be omitted, and instead of this, a push-feeding device for the extruded material is provided.
Further, when an extruded product of a resin having a different appearance and physical properties from the resin part 3 is used as the long molding material 2, another resin extrusion molding device can be provided at this position. Further, the shape of the long composite material 1 is shown in FIG. 6 from the viewpoint of design or styling.
As indicated by a chain line 1e in FIG. 1, the front portion 1a and / or the rear portion 1c have the same width, and the front portion 1a and the rear portion 1c have the same width.
It is also possible to form a shape that changes in a relatively sharp continuous curve near the boundary with b, or another shape. Further, the shape of the resin portion 3 is not limited to the change as a result of the increase or decrease in the cross-sectional area of the resin portion 3, and includes changing the outer shape and changing the width without changing the cross-sectional area.

FIG. 7 shows another long composite material, (a) is a sectional view corresponding to AA of FIG. 1, (b) is a sectional view corresponding to BB,
(C) is a sectional view corresponding to CC. This long composite material 1 is formed by forming a molded portion 14a having a convex shape on the bright portion 15 of the changed cross section 2a so that the distance from the common cross section 2b changes along the longitudinal direction. The forming section 14a can be performed by a roll forming machine 21c. Other operations are shown in FIG.
In the same manner as in the above, the long composite material 1 can be manufactured.

In addition, the shape, structure, material, etc. of the long composite material can be arbitrarily changed.
Also, the resin portions 3 and 4 can be changed, and the method of changing the cross-sectional shape can also be changed.

[0048]

In the long composite material of the present invention, the resin portion whose cross-sectional shape changes is fixed along the changing cross section of the long molding material having the common cross section and the changing cross section.
The cross-sectional shapes of both the long molded material and the resin part change, and even if the changes are small, the cross-sectional shape changes largely as a whole, and a long composite material with high decorativeness is obtained.

According to the manufacturing method and apparatus of the present invention, when the resin portion is formed on the changing cross-section portion of the long molding material by the first movable die, the cross-sectional shape of the resin portion is changed by the second movable die. Since it is changed, it is possible to easily manufacture a long composite material in which the cross-sectional shapes of both the long molding material and the resin portion are changed by extrusion molding. In this case, using a simple device, the whole The long composite material can be continuously produced in a state where the long composite material is integrated and has an excellent appearance.

When a metal profile made of a bent product of a metal strip is used as the long molding material, a long molding product with high decorativeness can be easily molded by roll molding or the like, and it can be continuously formed by extrusion molding. It can be processed in the process.

By supplying a continuous long molding material to an extrusion molding die to form a resin portion and then cutting the resin portion at a predetermined position, continuous processing is possible and production efficiency can be improved.

When an extrusion-molded product such as a metal is used as the long molding material, it can be extrusion-molded by using a separately molded material. It can be carried out.

By changing the cross-sectional shape after forming the resin portion, a long composite material having a complicated cross-sectional shape can be easily manufactured.

By providing a drive device for controlling the moving amount of the movable die according to the passing amount of the long molding material, the resin portion can be accurately formed at a predetermined position in response to the change of the cross section of the changing cross section. .

When the roll forming device is provided in combination with the extrusion forming device, a long formed material can be formed from the metal strip and extrusion molding can be continuously performed, resulting in high production efficiency.

[Brief description of drawings]

FIG. 1 is a front view showing a long composite material according to an embodiment of the present invention.

2A is a cross-sectional view taken along the line AA in FIG. 1, and FIG.
Sectional drawing, (c) is CC sectional drawing.

FIG. 3 is a system diagram of the manufacturing apparatus of the embodiment.

FIG. 4 is a sectional view taken along line DD of FIG. 3;

FIG. 5 is a sectional view taken along the line EE of FIG. 4;

FIG. 6 is a front view of the long composite material before cutting.

7A and 7B show a long composite material of another embodiment, in which FIG. 7A is a sectional view corresponding to AA in FIG. 1, and FIG. 7B is a sectional view corresponding to BB.
(C) is a sectional view corresponding to CC.

FIG. 8 is a front view of a conventional long composite material.

[Explanation of symbols]

 1 Long Composite Material 1a Front Part 1b Center Part 1c Rear Part 2 Long Formed Material 2a Change Cross Section 2b Common Cross Section 3, 4 Resin Part 5 Roof Panel 6a Front Pillar Panel 6b Rear Pillar Panel 7a Front Window 7b Rear Window 8a Front Door 8b Rear door 9a Front fender panel 9b Rear fender panel 11 Mounting part 12, 13 Holding part 14 Folding part 15 Bright part 16 Metal strip 17 Intermediate material 18 Excess material 19, 19a, 19b Resin 19c Discharge resin 20 Uncoiler 21a, 21b, 21c Roll Molding machine 22 Slitter 23 Coating device 24 Baking device 25a, 25b Detection device 26 Extrusion mold 27 Cooling device 28 Pulling machine 29 Cutting device 30 Control device 31 Fixed mold 32a First movable mold 32b Second Movable type 33 Resin supply path 34, 35, 43 Resin flow path 36, 36a, 36b, 36c Passage 37 Holding member 34a, 38, 45 Orifice 39a, 39b Guide member 40a, 40b Driving device 41a, 41b Rod 42 Holding portion 44 Communication Port 46 Pin 47 Support Base 48 Cutter 49 Resin Discharge Port

Claims (16)

[Claims] 1. A long molding material having a common cross-section portion having substantially the same cross-sectional shape along the longitudinal direction and a changing cross-section portion having a cross-sectional shape varying along the longitudinal direction, and the long molding material. And a resin portion which is attached so that its position changes along the changing cross-section and whose cross-sectional shape changes along the longitudinal direction. 2. The cross-section-change long composite material according to claim 1, wherein the long molding material is a metal profile. 3. The long-section composite material with a changed cross section according to claim 2, wherein the metal profile is a roll-formed product of a metal strip. 4. The long cross-section composite material according to claim 2, wherein the metal profile is an extruded metal material. 5. The cross-section varying long composite material according to claim 1, wherein the resin portion is made of a resin extruded material. 6. An extrusion mold having a fixed mold and first and second movable molds, a common cross-sectional portion having substantially the same cross-sectional shape along the longitudinal direction, and a cross-sectional shape varying along the longitudinal direction. Continuously supplying a long molding material having a changed cross-section portion having, a common cross-section portion of the long molding material to the fixed mold of the extrusion molding die,
The changing cross section passes through in the longitudinal direction corresponding to each of the first movable molds, and the changing cross section changes in a direction intersecting the passing direction of the long molding material as the changing cross section passes in the longitudinal direction. While moving the first movable mold to, while extruding the resin from the extrusion port formed in the first movable mold,
The second movable die is moved to change the extruded shape of the resin extruded from the first movable die, and the changed cross-section of the long molding material is continuous in the longitudinal direction and traverses in response to the change. A method for producing a long composite material having a changed cross section, characterized in that a composite material is obtained by forming a resin portion whose surface shape changes. 7. The method according to claim 6, wherein a long molded material obtained by bending a metal strip is used as the long molded material. 8. The method according to claim 7, wherein a long formed material obtained by bending a metal strip by roll forming is used. 9. A continuous molding material is supplied to an extrusion molding die to form a resin portion, and then cut at a predetermined position.
9. The method according to any one of 8 to 8. 10. The method according to claim 6, wherein the long molding material cut into a predetermined length is sequentially supplied to the extrusion molding die. 11. The method according to claim 6, wherein a long molded material which is made of a metal extruded material and is cut in advance to a predetermined length is used. 12. The method according to claim 6, wherein the resin is extruded from a resin extruding port formed in the fixed mold to form a resin portion continuous in the longitudinal direction also in the common cross section. 13. The method according to claim 6, further comprising changing the cross-sectional shape of the long molded material after forming the resin portion. 14. A continuous molding material having a common cross-section having substantially the same cross-sectional shape along the longitudinal direction and a changing cross-section having a cross-sectional shape changing along the longitudinal direction, which is continuous in the longitudinal direction. And an extrusion mold for forming a resin portion along the longitudinal direction of the supplied long molding material, wherein the extrusion molding mold is extrusion molded so as to pass a common cross-section of the long molding material. A fixed mold provided on the mold, a first movable mold provided on the extrusion molding mold so as to pass through the changed cross section of the long molding material, and a second movable mold independent of the first movable mold. The first movable mold has a resin extrusion port, intersects the passage direction of the long molding material corresponding to the passage of the changing cross section, and moves in the changing direction of the changing cross section. Extrude the resin from the extrusion port and shape the resin part to correspond to the change in the cross section. The second movable die is characterized in that the composite material is manufactured by changing the extrusion shape of the resin extruded from the first movable die to change the cross-sectional shape of the resin portion. Machine for producing long composite materials with variable cross section. 15. The apparatus according to claim 14, further comprising a drive device for controlling the moving amount of the movable mold according to the passing amount of the long molding material. 16. The apparatus according to claim 14 or 15, further comprising a roll forming device, which is provided on the upstream side of the extrusion molding die, for forming a long formed material by bending and forming a metal strip.