JPH09201860A - Method and apparatus for producing long-length composite material with cross-section change - Google Patents

Abstract

(57) 【Abstract】 PROBLEM TO BE SOLVED: To easily manufacture a long composite material having a variable cross-sectional shape by extrusion molding. In this case, using a simple device, the whole is integrated to obtain an excellent appearance. The above-mentioned long composite material is continuously manufactured in the state of having. SOLUTION: An extrusion molding die 26 having a fixed die 31 and a movable die 32 is provided with a common cross-section portion 2b having substantially the same cross-sectional shape along the longitudinal direction and a change having a cross-sectional shape varying along the longitudinal direction. The long molding material 2 having the cross-section 2a is continuously supplied in the longitudinal direction, the common cross-section 2b is made to correspond to the fixed die 31 of the extrusion molding die 26, and the changed cross-section 2a is made to correspond to the movable die 32, respectively. Let it pass in the longitudinal direction,
Along with the passage of the changed cross section 2a in the longitudinal direction, the long molded material 2
While moving the movable die 32 in the direction in which the cross section 2a changes while intersecting the passage direction of the resin, resin is extruded from the extrusion port formed in the movable die 32, and the change is made to correspond to the change cross section 2a. The resin portion 3 continuous in the direction is formed.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method and an apparatus for producing a long composite material having a cross-sectional shape that changes in the longitudinal direction, particularly a composite long molded product suitable for a vehicle decorative member.

[0002]

2. Description of the Related Art FIG. 1 is a front view showing a long composite material used as a drip molding of a vehicle. In the figure,
Reference numeral 1 denotes a long composite material used as a drip molding, which includes a long molding material 2 whose cross-sectional shape changes along the longitudinal direction, and a changed cross-section 2a and a common cross-section 2b of the long molding material 2. It is conceivable to form the resin portions 3 and 4 fixed along the same.

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. The cross-sectional shape of the resin portions 3 and 4 is substantially constant in the longitudinal direction, and it is desirable that the cross-sectional shape of the long molding material 2 changes substantially corresponding to the shape of the long composite material 1.

As a conventional method of manufacturing such a molded product having a changed cross-sectional shape, a long metal plate 2 is formed by press-molding a long metal plate, and then a resin portion 3 is formed by injection molding. A general method is to integrally form 4 or to separately fix resin portions 3 and 4 formed by extrusion molding with an adhesive or the like.

[0006]

However, the conventional manufacturing method as described above requires a large mold as a press mold or an injection mold, and therefore cannot be substantially integrally molded. It is necessary to divide into 2 to 3 and to form, and when these are joined, the joint is exposed and the appearance is likely to be damaged. When fixing the resin part with an adhesive, etc.,
Since it is a manual work, a lot of man-hours are required, and it is difficult to evenly attach the pieces, and it is expected that the appearance will be easily damaged.

In order to solve the above-mentioned problems, the object of the present invention is to make a composite long molded product whose cross-sectional shape changes by extrusion molding using a simple apparatus and to integrate the whole into a good appearance. It is to obtain a manufacturing method and a device that can be manufactured continuously.

[0008]

SUMMARY OF THE INVENTION The present invention is the following method and apparatus for manufacturing a long cross-section varying composite material. (1) An extrusion molding die having a fixed die and a movable die has a length having a common cross-section having substantially the same cross-sectional shape along the longitudinal direction and a change cross-section having a cross-sectional shape varying along the longitudinal direction. The continuous molding material is continuously supplied in the longitudinal direction thereof, and the common cross-sectional portion of the long molding material is passed through in the longitudinal direction in correspondence with the fixed die of the extrusion molding die and the changed cross-sectional portion in correspondence with the movable die. While moving the movable mold in the changing direction of the changed cross-section crossing the passing direction of the long molding material along with the passage of the changed cross-section in the longitudinal direction, the resin is extruded from the extrusion port formed in the movable mold, A method for producing a long cross-section varying composite material, characterized in that a composite material is obtained by forming a resin portion continuous in the longitudinal direction in correspondence with the change cross-sectional portion. (2) The method according to (1) above, wherein a long molding material obtained by bending a metal strip is used as the long molding material. (3) The method according to (2) above, which uses a long molding material obtained by bending a metal strip by roll molding. (4) The method according to any one of (1) to (3) 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. (5) The method according to any one of the above (1) to (4), in which the long molding material cut into a predetermined length is sequentially supplied to the extrusion molding die. (6) The method according to (5) above, which uses a long molding material which is made of a metal extrusion molding material and is cut into a predetermined length in advance. (7) The method according to any one of (1) to (6) above, wherein the resin is extruded from the resin extruding port formed in the fixed mold to form a resin portion continuous in the longitudinal direction also in the common cross section. (8) The method according to any one of (1) to (7) above, wherein after the resin portion is formed, the cross-sectional shape of the long molded material is further changed. (9) A long molding material having a common cross section having substantially the same cross section along the longitudinal direction and a changing cross section having a cross sectional shape changing along the longitudinal direction is continuously supplied in 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 such that the common cross-section portion of the long molding material is passed through. And a movable die provided in the extrusion molding die so as to pass the changed cross section of the long molding material. The movable die has a resin extrusion port and passes the changed cross section. Corresponding to the above, the resin is extruded from the extrusion port while intersecting with the passage direction of the long molding material and moving in the changing direction of the changing cross section to form a resin portion on the changing cross section so as to correspond to the change. It is characterized by manufacturing composite materials by Equipment for manufacturing long composite materials with variable cross section. (10) The device according to (9) above, which is provided with a drive device for controlling the moving amount of the movable mold according to the passing amount of the long molding material. (11) The apparatus according to (9) or (10) above, which is equipped with a roll forming apparatus that bends and forms a metal strip to form a long formed material.

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. It is a long-section-variable composite material including a molded material and a resin portion having a predetermined cross-sectional shape, which is fixed along the modified cross-sectional portion of the long molded material.

As the elongate molding material, a metallic profiled material obtained by bending a bright metal strip such as a stainless steel plate into a predetermined cross-sectional shape by roll molding or a profiled extrusion molding material such as an aluminum alloy is preferable. This long molded material has a common cross section of almost the same shape throughout the entire length,
It has a cross-sectional shape integrated with a changing cross-sectional portion whose cross-sectional shape changes along the longitudinal direction. 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 may be constant or change. 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.

A manufacturing apparatus for manufacturing the above-mentioned long composite material is equipped with an apparatus having an extrusion molding die for supplying a long molding material to perform extrusion molding of a resin, and the extrusion molding die is a long molding material. While passing through the fixed mold that passes the common cross section of, and the changed cross section of the long molding, while moving in the crossing direction and the passing direction of the long molding along with the passage of the changed cross section,
It has a movable mold for extruding a resin from an extrusion port to form a resin portion in the changed cross section.

The movable die is provided with a resin extrusion port for forming the resin portion. However, when the resin portion is formed in the common cross-section portion, the fixed die can also be provided with the resin extrusion port. . It is preferable that the extrusion molding die is provided with a drive device that controls the movement amount of the movable die 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, and in this case, a part of the width direction is changed in the longitudinal direction so that the width of the metal strip changes in the longitudinal direction. A slitter is preferably provided for continuous slitting along and partial removal.

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 movable die to pass the changed cross section. Correspondingly, while moving the movable die in the direction that intersects the passage direction of the long molding material, resin is extruded from the extrusion port formed in the movable die to form the resin portion in the changed cross-section, thereby obtaining a cross-section. Manufacture a long composite material that changes shape. An extrusion port can be formed in the fixed mold, and a resin portion can be formed also in the common cross section.

As the long molding material, a continuous material may be supplied as it is, or a material previously cut into a predetermined length slightly longer than the length of the final product may be sequentially supplied. 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, if the extruded product of a metal such as an aluminum alloy is the same as the length of the final product,
It is possible to sequentially supply products cut to a slightly longer predetermined length.

[0016]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the drawings. FIG. 2 shows a long composite material as a drip molding for a vehicle which is a manufacturing target in the embodiment. (A) is a sectional view taken along the line AA of FIG. 1, (b) is a sectional view taken along the line BB, and (c) is It is CC sectional drawing.

The long composite material 1 is a long molding material 2 formed by bending and forming a bright stainless steel sheet metal strip material, and a long molding material 2 fixed to the changed cross section 2a and the common cross section 2b. And colored resin parts 3 and 4 of different colors
Consists of The long molded material 2 has a changed cross-section 2a in which the cross-sectional shape changes along the longitudinal direction so that the protruding length thereof changes from a common cross-section 2b having a substantially constant cross-section along the longitudinal direction. Has a protruding shape. The resin portion 3 is fixed to the changed cross section 2a, and the resin portion 4 is fixed to the common cross section 2b.

On the common cross-section 2b of the long molding 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 center portion 1b, as shown in FIG. 2B, the resin portion 3 forms a receiving groove for water droplets or the like which flows away from the roof panel 5 and flows away from the front panel 1.
2A and 2C, the resin portion 3 is in contact with the front pillar panel 6a and the rear pillar panel 6b, and forms a water channel inside. The resin portion 3 near the boundary between the changed cross section 2a and the common cross section 2b,
The metal plate is exposed on the outer side of the vehicle between 4 to form a bright portion 15. The colored resin portions 3 and 4 and the bright portion 15 form a design portion that is visible from the outside.

In this embodiment, the changed cross section 2
The boundary between a and the common cross-section 2b is not necessarily determined clearly. For example, the holding sections 12 and 13 may be regarded as a common cross-section, and the other portions may be regarded as changing cross-sections. In other words, the changing cross section 2a is not necessarily limited to the absolutely changing portion, but may partially include a common cross section. In the cross section shown in FIG. 2B, a portion other than the folded portion 14 is defined as a common cross section 2b.
Can be regarded as the changing cross section 2a.

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. On the other hand, the resin portions 3 and 4 have substantially the same width and the same cross-sectional shape over the entire length. For this reason, the width (X ₁ ~
X ₃ ), and the width of the bright portion 15 of the long composite material 1, the entire width (W _{1 to} W ₃ ), and the cross-sectional shape of the elongated composite material 1 change substantially corresponding to the change of the cross-sectional shape.

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 a coating device,
24 is a baking device, 25a and 25b are detection devices, 26 is an extrusion mold provided at the tip of an extrusion molding device (not shown),
27 is a cooling device, 28 is a take-off machine, 29 is a cutting device, 30
Is a control device.

As shown in FIGS. 4 and 5, the extrusion molding die 26 has a fixed die 31, a movable die 32, and a resin supply passage 33 connected to the tip of the extrusion molding machine. Resin channels 34 and 35 are formed in the fixed die 31, and the passage 3 of the long molding material 2 is formed.
A holding member 37 having 6, 36a is provided. The passages 36, 36a of the holding member 37 have a cross-sectional shape substantially corresponding to the cross-sectional shape of the long molding material 2 so that the long molding material 2 can pass therethrough.
a corresponds to the changed cross section 2a. The resin flow path 34 communicates with the movable die 32, and the resin flow path 35 has an extrusion port 38 at a position where the resin portion 4 is formed in the common cross-section 2b of the long molding material 2.

The movable die 32 is an arc-shaped guide member 3 on both sides.
It is slidable with respect to the fixed die 31 by means of 9 and 39, and is movable in a direction orthogonal to the passing direction of the long molding material 2, and is movable forward and backward by a drive device 40 via a rod 41. The movable die 32 has a changed cross-section portion 2a of the long molding material 2.
A passage 36b through which the folded-back portion 14 passes is formed, and a holding portion 42 is formed at the tip end of the folded-back portion 14 to engage with and hold the adjacent portion of the folded-back portion 14.

A resin flow path 43 is formed in the movable die 32,
One end side thereof becomes an elongated hole-shaped communication port 44 at a position corresponding to the fixed orifice 34a and communicates with the resin flow path 34,
Receives the resin discharged from the fixed orifice 34a,
The other end serves as an extrusion port 45 of the resin part 3 and opens so as to surround the passage 36b. An electric motor is used as the drive unit 40, and is rotatably attached to a support base 47 by a pin 46. Ease of control as the drive device 40,
An electric motor such as an AC servo motor or a stepping motor is preferable in terms of accuracy, but a fluid pressure cylinder may be used.

In the method for producing a long composite material using the above apparatus, as disclosed in, for example, Japanese Patent Laid-Open No. 7-89353, first, the metal strip 16 is delivered from the uncoiler 20 and is bent by the usual roll forming machine 21a. By molding, an intermediate member 17 having a constant cross-sectional shape having a cross-section corresponding to the common cross-section 2b is formed. 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 slit, the remaining intermediate material 17 has a peripheral length whose one circumference is substantially the same as the length of the finished product of the long molding material 2 and a molding surface having a predetermined shape on the peripheral surface. -The roll forming machine 21b provided with a roll is further bent to form a shape such that the folded-back portion 14 separates from or approaches the common cross-sectional portion, and the changed cross-sectional portion 2a as shown in FIG.
And the long molded material 2 which has the common cross-section 2b is formed.

As in the above-described embodiment, the roll type slitter 22 has a circumference that substantially matches the length of the finished product of the long molding material 2, and a method using the same roll molding machine 21b. Alternatively, a concentrated thermal energy cutting method such as laser beam cutting may be used for the slit, and for forming the changed cross-section portion 2a, the intermediate material 17 slit in the changed width is moved in the longitudinal direction. The changing cross section 2a may be formed by controlling the movement of the forming roll in the roll axial direction so as to correspond to the changing width. Such a roll forming method is disclosed, for example, in JP-A-6-32.
No. 8147.

The long molding material 2 is coated with an adhesive by the coating device 23 at the positions where the resin portions 3 and 4 are to be formed, and is activated by the baking device 24. Coating device 2
3. Instead of the printing device 24, another fixing means may be provided, for example, a punching device for connecting the resin members to each other to form a fixing hole. 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 device 26, the drive device 40 is driven by the drive signal from the control device 30 in response to the detection signal of the detection device 25a to move the movable die 32 forward and backward. At this time, the detection device 25a detects the change amount and the supply amount of the changed cross section 2a, and the control device 30 determines the position of the movable mold 32 at the relevant portion of the changed cross section 2a based on the distance between the detection device 25a and the movable die 32 and the supply speed. Is calculated, and a drive signal is output in accordance with this time to control the timing of forward and backward movements of the movable die 32 and the amount of movement. The long molding material 2 has rigidity like a metal profile material, the changing portion of the cross-section 2a changed by the passage of the long molding material 2 is used as a cam, and the movable die 32 is used as a cam follower to move the movable die 32 by a cam action. When it is possible to move forward and backward, the detection device 25a and the drive device 40 can be omitted.

While the movable die 32 is moved forward and backward as described above, the long molding material 2 is held by the holding member 37 of the extrusion molding die 26.
The common cross-section 2b is provided in the passage 36 provided in
6b is passed through the changed cross section 2a, and the resin is supplied from the resin supply path 33 to perform extrusion molding. At this time, the resin 19 is divided into the resin flow paths 34 and 35 of the fixed mold 31, and the resin flowing in the resin flow path 35 is extruded from the extrusion port 38, and the resin portion 4 is formed in the common cross-section 2b of the long molding material 2. Are continuously formed in the longitudinal direction. On the other hand, the resin flowing through the resin flow path 34 is received from the orifice 34a of the fixed mold 31 through the communication port 44, flows through the resin outflow path 43 of the movable mold 32, and is extruded through the extrusion port 45 to change the cross-section 2a of the long molding material 2. The resin portion 3 is formed on the. As a result, the long composite material 1 shown in FIG. 6 is formed.

At this time, the common cross-section portion 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. Positioning is performed by blocking movement in the direction of rotation, and the common cross section advances in the molding die 26 always maintaining the same position and posture. In this case, the widths X _{1 to} X ₄ change as the long molding material 2 advances, but the movable mold 32 moves forward and backward in the directions of arrows P and Q in accordance with the change, so that the changed cross-section portion 2 a The folded portion 14 formed at the tip of the
Will always pass through the passage 36b of the movable die 32. As a result, the resin portion 3 is always formed at the tip of the changed cross-section portion 2a, and the long composite material 1 whose transverse cross-section shape changes in the longitudinal direction is manufactured.

As shown in FIG. 5, while the portion of the minimum width X ₂ of the long molding material 2 passes through the movable die 32, the movable die 3
2 moves forward to the solid line position to form the center portion 1b.
The long molding material 2 further advances and its width is X ₃ (or X ₁ )
The movable die 32 is retracted in the enlarged portion as described above, 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 movable die 32 is retracted to the position of the chain line 32a, and extrusion molding is performed for a while at this position to form the grip margin portion 1d. After that, when the long molded material 2 reaches the reduced width X ₁ (or X ₃ ) portion, the movable die 32 advances to form the front portion 1a (or the rear portion 1c).

In FIG. 4, the changing cross-section portion 2a of the long molded material 2 passing through changes along the arc shape, so that when the movable die 32 moves along the guide member 39 in the arc shape corresponding to this change, The drive device 40 has a pin 4 to accommodate the movement.
It is designed to rotate by 6, but the changed cross section 2a
In the case of a linearly changing shape, the movable die 32 moves linearly, and thus the driving device 40 may be fixed.

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. As an example of using such a roll forming machine 21c, the ridge 14a is changed as shown in FIGS.
It is suitable for forming a.

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. The terminal side position (same as the terminal side position of the rear portion 1c) is cut into a certain length. The cutting device 29 is such that the cutting blade 29a is a long composite material 1.
The cutting signal is sent while moving at the same speed as that described above, and a drive signal is sent from the distance between the detection device 25a and the cutting blade 29a to cut at a predetermined cutting position. The cutting signal 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.

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 so as to have a small radius of curvature that matches the radius of curvature of the vehicle body, the portion of the gripping margin is cut and the long composite material shown in FIG. Get one. Note that when the press die is used for axial bending, the gripping margin is not necessary, so the shape is adjusted to the above-described shape that does not require a gripping margin for slit processing or extrusion molding.

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.
When an extruded product of a hard resin is used as the long molded material 2, another resin extruder can be provided at this position. Further, the shape of the long composite material 1 has the same width in the front portion 1a and / or the rear portion 1c as shown by the chain line 1e in FIG. 6 from the viewpoint of design or styling, and near the boundary between these and the center portion 1b. It is also possible to form a shape that changes in a relatively abrupt continuous curve, or another shape.

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.

FIG. 8 is a perspective view showing in section a part of another long composite material used as a front window molding. The long composite material 1 is continuously formed from the upper portion 1u attached to the peripheral portion of the front window plate 50 to the side portion 1s via the corner portion 1f, and extends from the outer surface side head portion 51 to the window plate 50 side. The legs 52 are extended. The height of the leg portion 52 from the window plate surface is the maximum H ₁ at the side portion 1s, the intermediate H _{2 at} or near the corner portion 1f, and the minimum height H _{3 at} the upper portion 1u. In this long composite material 1, the leg portion 52 is the changing cross-section portion 2a of the long molding material 2, and the head portion 51 is the common cross-section portion 2b. The resin portions 3 and 4 are fixed to each other. There is. The long composite material 1 described above can also be manufactured by substantially the same operation as that shown in FIGS.

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.

[0040]

According to the manufacturing method and apparatus of the present invention,
Since the resin part is formed on the changing cross section of the long molding material by the movable mold, it is possible to easily manufacture a long composite material with a changing cross-sectional shape by extrusion molding. In this case, use a simple device. The continuous composite material can be continuously manufactured in a state where the whole is integrated and has an excellent appearance.

When a bent product of a metal strip is used as the long molding material, the long molding product can be easily molded by roll molding or the like and can be processed in a step continuous with extrusion molding.

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, and it is continuously supplied to an extrusion-molding die for molding to continuously perform the treatment. 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 driving 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 in 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 a 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 a conventional technique and an embodiment.

2A and 2B show a long composite material of an embodiment, wherein FIG. 2A is a sectional view taken along the line AA of FIG. 1, FIG. 2B is a sectional view taken along the line BB, and FIG.
It is 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.

FIG. 7 is a front view of a long composite material according to another embodiment.

FIG. 8 is a front view of a long composite material according to another embodiment.

[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 Resin 20 Uncoiler 21a, 21b, 21c Roll forming 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 Type 32 Movable Type 33 Resin Supply Channel 34, 35, 43 Resin Flow Channel 36, 36 , 36b passage 37 holding member 38, 45 the extrusion port 39 guides member 40 driving unit 41 rod 42 holding portion 44 connecting port 46 pin 47 support table 50 window plate

Claims (11)

[Claims] 1. An extrusion molding die having a fixed die and a movable die is provided with a common cross-section portion having substantially the same cross-sectional shape along the longitudinal direction and a change cross-section portion having a cross-sectional shape varying along the longitudinal direction. Continuously supplying a long molding material having in the longitudinal direction, the common cross-sectional portion of the long molding material to the fixed mold of the extrusion molding mold,
The variable cross section is made to pass in the longitudinal direction corresponding to each movable die, and the movable die is moved in the direction in which the changed cross section changes by intersecting the passing direction of the long molding material as the changed cross section passes in the longitudinal direction. While moving, a resin is extruded from an extrusion port formed in a movable die, and a composite material is obtained by forming a continuous resin portion in the longitudinal direction in response to the change in the changed cross section. A method for manufacturing a surface-change long composite material. 2. The method according to claim 1, wherein a long molded material obtained by bending a metal strip is used as the long molded material. 3. The method according to claim 2, wherein a long formed material obtained by bending a metal strip by roll forming is used. 4. A continuous long molding material is supplied to an extrusion molding die to form a resin portion and then cut at a predetermined position.
4. The method according to any one of claims 3 to 3. 5. The method according to claim 1, wherein the long molding material cut into a predetermined length is sequentially fed to the extrusion molding die. 6. The method according to claim 5, wherein a long molded material which is made of a metal extruded material and is cut in advance to a predetermined length is used. 7. The method according to claim 1, 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. 8. The method according to claim 1, wherein the cross-sectional shape of the long molded material is further changed after the resin portion is formed. 9. A long molding material having a common cross section having substantially the same cross section along the longitudinal direction and a change cross section having a cross sectional shape changing along the longitudinal direction 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 die provided on the die and a movable die provided on the extrusion molding die so as to pass through the changed cross-section of the long molding material, the movable die having a resin extrusion port, Corresponding to the passage, it crosses the passage direction of the long molding material and extrudes resin from the extrusion port while moving in the changing direction of the changing cross section to form a resin portion on the changing cross section to correspond to the change. It is special that the composite material is manufactured by Apparatus for manufacturing a cross-sectional change long composite material according to. 10. The apparatus according to claim 9, further comprising a drive device for controlling the moving amount of the movable mold according to the passing amount of the long molding material. 11. The apparatus according to claim 9, further comprising a roll forming device that bends and forms a metal strip to form a long formed material.