JP3716481B2 - Method and apparatus for producing cross-section varying long composite material - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a method and an apparatus for manufacturing a long composite material whose cross-sectional shape changes along the longitudinal direction, particularly a composite long molded product suitable for a vehicle decorative member.
[0002]
[Prior art]
FIG. 1 is a front view showing a long composite material used as a drip molding for a vehicle. In the figure, reference numeral 1 denotes a long composite material used as a drip molding, a long molding material 2 whose cross-sectional shape changes along the longitudinal direction, a changed cross section 2a and a common cross section of the long molding material 2 It is conceivable to form the resin parts 3 and 4 fixed along the part 2b.
[0003]
The long composite 1 is integrally formed with a front part 1a along the front pillar panel 6a of the vehicle body, a center part 1b along the roof panel 5, and a rear part 1c along the rear pillar panel 6b. It is formed in a constant cross-sectional shape, and the cross-sectional shape changes in the front part 1a and the rear part 1c. 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.
[0004]
The width of the front part 1a, the center part 1b and the rear part 1c of the long composite material 1 is W ₁ , W ₂ , W _Three Then, W ₂ Is substantially constant along the longitudinal direction and W ₁ , W _Three Is W ₂ The width gradually increases from the width toward the tip, and the cross-sectional shape changes correspondingly. It is desirable that the cross-sectional shape of the resin portions 3 and 4 is substantially constant in the longitudinal direction, and the cross-sectional shape of the long molding material 2 is a change substantially corresponding to the shape of the long composite material 1.
[0005]
As a conventional manufacturing method of such a molded product having a change in cross-sectional shape, a long metal plate 2 is formed by press forming a long metal plate, and then the resin parts 3 and 4 are integrated by injection molding. Generally, a method of fixing the resin portions 3 and 4 formed by extrusion or separately by extrusion molding with an adhesive or the like is common.
[0006]
[Problems to be solved by the invention]
However, the conventional manufacturing method as described above requires a large molding die as a press die or an injection molding die, so that it cannot be substantially integrally molded, and the whole is divided into two or three parts. When these are joined, the joint is exposed and the appearance is easily damaged. Further, when the resin part is fixed with an adhesive or the like, a manual operation is required, so that many man-hours are required and uniform fixing is difficult, and problems such as the appearance being easily damaged are expected.
[0007]
The object of the present invention is to solve the above-mentioned problems, by continuously using a simple apparatus by extrusion molding a composite long molded product whose cross-sectional shape changes, in a state where the whole is integrated and has an excellent appearance. It is to obtain a manufacturing method and apparatus that can be manufactured.
[0008]
[Means for Solving the Problems]
The present invention is a method and apparatus for producing the following cross-section changing long composite material.
(1) To an extrusion mold having a fixed mold and a movable mold,
A continuous molding material having a common cross-sectional portion having substantially the same cross-sectional shape along the longitudinal direction and a changing cross-sectional portion having a cross-sectional shape changing along the longitudinal direction is continuously supplied in the longitudinal direction,
Let the common cross-section of the long molding material pass in the longitudinal direction corresponding to the fixed mold of the extrusion mold and the change cross-section to the movable mold, and the long cross-section is formed along with the passage of the change cross-section in the longitudinal direction. While moving the movable mold in the direction in which the cross section changes and intersects with the material passing direction, the resin is extruded from the extrusion port formed in the movable mold,
A composite material is obtained by forming a resin portion that is continuous in the longitudinal direction with the change cross-section corresponding to the change.
The manufacturing method of the cross-section change elongate composite material characterized by the above-mentioned.
(2) The method according to (1) above, wherein a long molding material obtained by bending a metal strip as a long molding material is used.
(3) The method according to (2) above, wherein a long shaped material obtained by bending a metal strip by roll forming is used.
(4) The method according to any one of (1) to (3) above, wherein a continuous long molding material is supplied to an extrusion mold to form a resin portion and then cut at a predetermined position.
(5) The method according to any one of (1) to (4) above, wherein the long molding material cut to a predetermined length is sequentially supplied to the extrusion mold.
(6) The method according to (5) above, wherein a long molding material made of a metal extrusion molding material and cut in advance to a predetermined length is used.
(7) The method according to any one of (1) to (6), wherein the resin is extruded from the resin extrusion port formed in the fixed mold to form a resin portion continuous in the longitudinal direction also in the common cross-section portion.
(8) The method according to any one of (1) to (7), wherein the cross-sectional shape of the long molding material is further changed after the resin portion is formed.
(9) Continuous supply of a long molding material having a common cross-sectional portion having substantially the same cross-sectional shape along the longitudinal direction and a changing cross-sectional portion having a cross-sectional shape changing along the longitudinal direction in the longitudinal direction And an extrusion mold for forming a resin portion along the longitudinal direction in the supplied long molding material,
The extrusion mold is provided in the extrusion mold so as to pass the fixed mold provided in the extrusion mold so as to pass through the common cross section of the long molding material, and the changed cross section of the long molding material. With movable type,
The movable mold has a resin extrusion port, intersects with the passage direction of the long molding material corresponding to the passage of the changed cross-section portion, and extrudes the resin from the extrusion port while moving in the direction of change of the change cross-section portion. A composite material is manufactured by forming a resin portion corresponding to the change in the change cross-section portion.
An apparatus for manufacturing a composite material having a long cross-sectional change.
(10) The apparatus according to (9), further including a driving device that controls a moving amount of the movable mold in accordance with a passing amount of the long molding material.
(11) The apparatus according to (9) or (10) above, comprising a roll forming apparatus for bending a metal strip to form a long formed material.
[0009]
The long composite material produced in the present invention includes a common cross-sectional portion having substantially the same cross-sectional shape along the longitudinal direction, and a long molding material having a change cross-sectional portion whose cross-sectional shape changes along the longitudinal direction. A cross-section change long composite material comprising a resin portion having a predetermined cross-sectional shape fixed along a change cross-section portion of the long molding material.
[0010]
The long formed material is preferably a metal profile cross-sectional material obtained by bending a bright metal strip such as a stainless steel plate into a predetermined cross-sectional shape by roll molding or the like, or a profile extrusion-molded material such as an aluminum alloy. This long molded material has a cross-sectional shape in which a common cross-sectional portion having substantially the same shape throughout the entire length and a change cross-sectional portion whose cross-sectional shape changes along the longitudinal direction are integrated. The material is not particularly limited, and may be metal, resin, soft or hard.
[0011]
The resin portion is formed of a resin material that can be extruded such as a synthetic resin, rubber, or the like that is different in physical properties and color from the long molding material, and the cross-sectional shape thereof may be constant or changed. The resin portion is formed in the changed cross-section portion of the long molding material, but may be formed in the common cross-section portion, and the formation position and the number thereof can be arbitrarily selected as desired.
[0012]
The manufacturing apparatus for manufacturing the long composite material includes an apparatus having an extrusion mold for supplying the long molding material and performing resin extrusion molding, and the extrusion mold has a common cross section of the long molding material. The resin is extruded from the extrusion port while passing through the cross section of the fixed mold that passes the part and the change cross section of the long molding material, and moving in the direction crossing the passage of the long molding material as the change cross section passes. And a movable mold for forming the resin portion in the change cross section.
[0013]
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-sectional portion, the fixed die can also be provided with the resin extrusion port. The extrusion mold is preferably provided with a drive device that controls the movement amount of the movable mold in accordance with the movement amount of the long molding material. In addition, when a long strip is formed by roll forming a metal strip, a roll forming device can be provided. 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. It is preferable to provide a slitter for continuous removal along the slit.
[0014]
In the manufacturing method using the above apparatus, the common cross section of the long molding material is passed along the fixed mold of the extrusion mold, and the changed cross section is passed along the movable mold so as to correspond to the passage of the changed cross section. While moving the movable mold in the direction intersecting the passage direction of the long molding material, the resin is extruded from the extrusion port formed in the movable mold and the resin section is formed in the changed cross section, thereby changing the cross sectional shape. Manufacture long composite materials. An extrusion port can be formed in the fixed mold, and a resin portion can also be formed in the common cross section.
[0015]
As the long molding material, a continuous material may be supplied as it is, or products previously cut to 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 out and supplied, and a common cross-section portion and a changed cross-section portion are formed by performing a slit for changing the slit width in the middle of the metal strip, bending to a predetermined cross-sectional shape, and the like. In this case, it can be formed into a shape approximate to the cross-sectional shape of the final product before extrusion molding, and can be further formed into a final cross-sectional shape by bending or the like after extrusion molding. Can be cut to length. In the latter case, for example, an extruded product of a metal such as an aluminum alloy, which is cut into a predetermined length that is the same as or slightly longer than the length of the final product, can be sequentially supplied.
[0016]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings.
FIG. 2 shows a long composite material as a drip molding for a vehicle to be manufactured in the embodiment, wherein (a) is a cross-sectional view taken along the line AA in FIG. It is CC sectional drawing.
[0017]
The long composite material 1 is different from the long formed material 2 formed by bending and molding a bright stainless steel plate from a metal strip material, and the long formed material 2 fixed to the changed cross section 2a and the common cross section 2b. The colored resin parts 3 and 4. The long shaped material 2 changes from a common cross-sectional portion 2b having a substantially constant cross-sectional shape along the longitudinal direction to a change cross-sectional portion 2a whose cross-sectional shape changes along the longitudinal direction so that the protruding length changes. Has a protruding shape. The resin part 3 is fixed to the change cross section 2a, and the resin part 4 is fixed to the common cross section 2b.
[0018]
The common section 2b of the long molding 2 is formed by bending 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, and the like. ing. A folded portion 14 is formed in the change cross section 2a. In the center portion 1b, as shown in FIG. 2 (b), the resin portion 3 forms a receiving groove such as water droplets flowing away from the roof panel 5 away from the roof panel 5, and in the front portion 1a and the rear portion 1c, As shown in FIGS. 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 therein.
A metal plate is exposed on the vehicle exterior side between the resin portions 3 and 4 in the vicinity of the boundary between the changed cross-sectional portion 2a and the common cross-sectional portion 2b to form a bright portion 15. The colored resin parts 3 and 4 and the bright part 15 form a design part viewed from the outside.
[0019]
In the present embodiment, the boundary between the changed cross-sectional portion 2a and the common cross-sectional portion 2b is not necessarily determined clearly. For example, the holding portions 12 and 13 are used as the common cross-sectional portion, and other portions are used as the changed cross-sectional portions. It can also be regarded as a department. That is, the change cross section 2a is not necessarily limited to a portion that is absolutely changed, and may include a common cross section.
Further, in the cross section shown in FIG. 2b, the portion other than the folded portion 14 can be regarded as the common cross section 2b, and the extended portion shown in FIGS. 2a and 2c from this position can be regarded as the changed cross section 2a.
[0020]
The widths of the design parts of the front part 1a, the center part 1b and the rear part 1c of the long molding material 2 are respectively X ₁ , X ₂ , X _Three X ₂ Is almost constant and X ₁ , X _Three Are each X ₂ The width gradually increases from the width of the to the tip. This enlarged portion is a changed portion of the changed cross section 2a of the long molding material 2 as it is. In contrast, 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 _Three ) And the width and overall width (W) of the bright portion 15 of the long composite material 1 substantially corresponding to the change in the cross-sectional shape. ₁ ~ W _Three ) And the cross-sectional shape has changed.
[0021]
3 is a system diagram showing the manufacturing apparatus according to the embodiment, FIG. 4 is a DD sectional view thereof, FIG. 5 is a sectional view taken along line EE of FIG. 4, and 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, and 26 is an extrusion molding device (not shown). An extrusion mold provided at the tip, 27 is a cooling device, 28 is a take-up machine, 29 is a cutting device, and 30 is a control device.
[0022]
As shown in FIGS. 4 and 5, the extrusion mold 26 includes a fixed mold 31, a movable mold 32, and a resin supply path 33 connected to the tip of the extrusion molding machine. Resin channels 34 and 35 are formed in the fixed mold 31, and a holding member 37 having passages 36 and 36 a for the long molding material 2 is provided. The passages 36 and 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 as to allow the long molding material 2 to pass through. It corresponds to the change cross section 2a. The resin flow path 34 communicates with the movable mold 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-sectional portion 2 b of the long molding material 2.
[0023]
The movable mold 32 is slid with respect to the fixed mold 31 by arc-shaped guide members 39 on both sides, and is movable in a direction perpendicular to the passing direction of the long molding material 2. 40 can be moved forward and backward. The movable mold 32 is formed with a passage 36b through which the folded portion 14 of the changed cross-sectional portion 2a of the elongated molding material 2 passes, and a holding portion 42 is formed at the tip of the passage 36b to engage with an adjacent portion of the folded portion 14. Holding.
[0024]
A resin channel 43 is formed in the movable mold 32, and one end of the movable channel 32 is connected to the resin channel 34 at a position corresponding to the fixed-type orifice 34a to be connected to the resin channel 34, and discharged from the fixed orifice 34a. The other end portion is an extrusion port 45 of the resin portion 3 and is opened so as to surround the passage 36b. An electric motor is used as the driving device 40 and is rotatably attached to the support base 47 by a pin 46. The drive device 40 is preferably an electric motor such as an AC servo motor or a stepping motor from the viewpoint of controllability and accuracy, but may be a fluid pressure cylinder.
[0025]
For example, as disclosed in Japanese Patent Application Laid-Open No. 7-89353, a method for producing a long composite material using the above-mentioned apparatus is as follows. First, the metal strip 16 is sent out from the uncoiler 20, and is bent by a normal roll forming machine 21a. 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 member 2 so that the width of the intermediate member 17 changes along the longitudinal direction. It slits with the roll-type slitter 22 in which the slit blade was formed, and the change cross-section part 2a is formed. The slit surplus material 18 is discharged as it is. The remaining intermediate material 17 has a round length substantially equal to the length of the finished product of the long molding material 2 and a molding surface having a predetermined shape on the circumferential surface, like the roll type slit. -Further forming with a roll forming machine 21b equipped with a cable to form a shape or the like in which the folded portion 14 moves away from or approaches the common cross section, and the changed cross section 2a and the common cross section 2b as shown in FIG. A long molding material 2 having the following is formed.
[0026]
Instead of a method using a roll-type slitter 22 having a circumference that substantially matches the length of the finished product of the long molding material 2 and a similar roll forming machine 21b as in the above embodiment, For the slit, a concentrated thermal energy cutting method such as laser beam cutting may be used, and for the formation of the changed cross section 2a, it changes with the movement of the intermediate member 17 slit in the change width in the longitudinal direction. The change cross section 2a may be formed by moving the forming roll in the roll axial direction so as to correspond to the width. Such a roll forming method is disclosed, for example, in JP-A-6-328147.
[0027]
The long molding material 2 is coated with an adhesive at a position where the resin parts 3 and 4 are formed by the coating device 23 and activated by the baking device 24. Instead of the coating device 23 and the baking device 24, other fixing property imparting means, for example, a perforating device for forming holes for connecting and fixing the resins can be provided. Thereafter, the long molding material 2 is extruded while detecting the position and supply amount of the long molding material 2 supplied to the extrusion mold 26 by a detection device 25a such as a position sensor for detecting the change position of the change cross section 2a. Extrusion is performed by supplying the mold 26 preferably at a constant speed. A detection signal from the detection device 25 a is input to the control device 30.
[0028]
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, and the movable mold 32 is moved forward and backward. At this time, the detection device 25a detects the change amount and the supply amount of the change cross section 2a, and the control device 30 determines that the portion of the change cross section 2a is the position of the movable die 32 from the distance and supply speed between the detection device 25a and the movable die 32. It is configured to calculate the time to reach the position and output a drive signal in accordance with this time, and to control the timing and amount of movement of the movable mold 32 forward and backward. The long molding material 2 is rigid like a metal profile, the change section of the change cross section 2a due to the passage of the long molding material 2 is a cam, the movable mold 32 is a cam follower, and the movable mold 32 is formed 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.
[0029]
While the movable mold 32 is moved forward and backward as described above, the common cross-section 2b is provided in the passage 36 provided in the holding member 37 of the elongated mold 26 with the long molding material 2 and the changed cross-section 2a is provided in the passages 36a and 36b. The resin is supplied from the resin supply path 33 and extrusion molding is performed. 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 through the resin flow path 35 is extruded from the extrusion port 38, and the resin section 4 is formed on the common cross-section 2 b 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 34 a 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 from the extrusion port 45 to change the cross section 2 a of the long molding material 2. The resin part 3 is formed. Thereby, the long composite material 1 shown in FIG. 6 is formed.
[0030]
At this time, when the common cross-section 2b of the long molding material 2 passes through the passage 36 of the fixed mold 31, the long molding material 2 rotates in the direction intersecting the traveling direction and the axis of the long molding material 2. The common cross-section portion is always kept in the same position and posture in the mold 26. In this case, as the long molding material 2 progresses, its width X ₁ ~ X _Four However, since the movable die 32 moves forward and backward in the directions of arrows P and Q in response to the change, the folded portion 14 formed at the tip of the changed cross-sectional portion 2a is always in the passage 36b of the movable die 32. Will pass.
Thereby, the resin part 3 is always formed in the front-end | tip part of the change cross-sectional part 2a, and the elongate composite material 1 from which a cross-sectional shape changes to a longitudinal direction is manufactured.
[0031]
As shown in FIG. 5, the minimum width X of the long molding material 2 ₂ While this portion passes through the movable mold 32, the movable mold 32 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 _Three (Or X ₁ ), The movable mold 32 moves backward to form the rear portion 1c (or the front portion 1a). Long molding material 2 has maximum width X _Four Then, the movable mold 32 is retracted to the position of the chain line 32a, and at this position, extrusion is performed for a while to form the gripping margin 1d. After that, the long molding material 2 is reduced width X ₁ (Or X _Three ), The movable mold 32 moves forward to form the front portion 1a (or the rear portion 1c).
[0032]
In FIG. 4, the change cross-sectional portion 2 a of the long molding material 2 that passes through changes along the arc shape, so that when the movable mold 32 moves along the guide member 39 in an arc shape in response to this change, it corresponds to the movement. For this purpose, the driving device 40 is rotated by the pin 46. However, when the change cross section 2a changes linearly, since the movable mold 32 moves linearly, the driving device 40 is fixed. May be.
[0033]
The long composite material 1 formed as described above is cooled by the cooling device 27 to cure the resin parts 3 and 4 and taken up by the take-up machine 28. In the process, if necessary, post-molding is performed by the roll forming machine 21c. Further change the cross-sectional shape. When forming by the roll forming machine 21c, a part of the roll forming machines 21a and 21b can be omitted. As an example using such a roll forming machine 21c, it is suitable when forming the protruding item | line 14a in the change cross-sectional part 2a like Fig.7 (a)-(c) mentioned later.
[0034]
Thereafter, the position of the long composite material 1 is detected by the detection device 25b in the same manner as the detection device 25a, and the terminal side position of the front portion 1a is detected by the cutting device driven by the drive signal calculated by the control device 30 from the detection signal. (It becomes the same as the terminal side position of the rear part 1c), and cut | disconnects to fixed length. The cutting device 29 is configured to perform cutting while the cutting blade 29a moves at the same speed as that of the long composite material 1, and cuts at a predetermined cutting position from the distance between the detection device 25a and the cutting blade 29a. A drive signal is sent. The cutting signal Z is the maximum width W of the long composite 1 in FIG. _Four It is set so as to be approximately the center position of the gripping margin portion 1d.
[0035]
The long composite material 1 cut to a certain length has a maximum width W formed at both ends thereof. _Four Part (X in FIG. 5) _Four After clamping the gripping allowance 1d of the grip portion 1) and performing axial bending by stretch bending so as to have a small curvature radius matching the curvature radius of the vehicle body in the vicinity of the boundary between the front portion 1a and the rear portion 1c and the center portion 1b. Then, the holding portion is cut to obtain the long composite material 1 shown in FIG. Note that, when the axis is bent using a press die, the gripping margin is not required, and therefore, the shape is adjusted to the above-described slit machining or extrusion molding without the clamping margin.
[0036]
The above manufacturing method is an example in which the long formed material 2 is formed by bending a bright metal strip 16 such as a stainless steel plate, but when an aluminum alloy extruded material cut in advance to a predetermined length is used. The roll forming machines 21a to 21c can be omitted, and instead of this, an intrusion supply device for the extrusion molding material is provided. Moreover, when using the extrusion molding product of hard resin as the elongate molding material 2, another resin extrusion molding apparatus can be provided in this position.
Further, the shape of the long composite material 1 is the same width in the front part 1a and / or the rear part 1c as indicated by a chain line 1e in FIG. It can also be formed into a shape that changes with a relatively abrupt continuous curve, or other shapes.
[0037]
FIG. 7 shows another long composite material, where (a) is a cross-sectional view corresponding to AA in FIG. 1, (b) is a cross-sectional view corresponding to BB, and (c) is a cross-sectional view corresponding to CC. The long composite material 1 is formed by forming a convex shaped portion 14a on the bright portion 15 of the change cross section 2a so that the distance from the common cross section 2b changes along the longitudinal direction. This forming part 14a can be performed in a roll forming machine 21c. Other operations are the same as in FIG. 3, and the long composite material 1 can be manufactured.
[0038]
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 part 1u attached to the peripheral part of the front window plate 50 to the side part 1s through the corner part 1f, and from the head 51 on the outer surface side to the window plate 50 side. The leg part 52 is extended. The height of the leg 52 from the window plate surface is the maximum H in the side portion 1s. ₁ , Intermediate H at or near corner 1f ₂ , Minimum H in upper part 1u _Three It is the height of. The long composite material 1 has a leg portion 52 which is a changed cross-sectional portion 2a of the long molding material 2 and a head portion 51 which is a common cross-sectional portion 2b. Yes.
The long composite material 1 can also be manufactured by substantially the same operation as in FIGS.
[0039]
In addition, the shape, structure, material, and the like of the long composite material can be arbitrarily changed, and the long molding material 2 and the resin portions 3 and 4 can be changed correspondingly, and the method for changing the cross-sectional shape is also available. Can be changed.
[0040]
【The invention's effect】
According to the manufacturing method and apparatus of the present invention, since the resin portion is formed on the change cross-section portion of the long molding material by the movable mold, it is possible to easily manufacture the long composite material having a change in cross-sectional shape by extrusion molding. In this case, the long composite material can be continuously produced using a simple apparatus in a state where the whole is integrated and has an excellent appearance.
[0041]
When a metal strip bent product is used as the long molding material, the long molded product can be easily molded by roll molding or the like, and can be processed in a process continuous with extrusion molding.
[0042]
By supplying a continuous long molding material to the extrusion mold and forming a resin portion and cutting at a predetermined position, continuous processing can be performed and production efficiency can be increased.
[0043]
When using an extruded product such as a metal as a long molding material, it can be extruded using a separately molded material, and can be continuously processed by feeding it to an extrusion mold and molding it sequentially. it can.
[0044]
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.
[0045]
By providing a driving device that controls the amount of movement of the movable mold in accordance with the amount of passage of the long molding material, the resin portion can be accurately formed at a predetermined position corresponding to the cross-sectional change of the change cross-sectional portion.
[0046]
When the roll forming apparatus is provided in combination with the extrusion forming apparatus, a long formed material can be formed from the metal strip, and the extrusion can be continuously performed, which increases the production efficiency.
[Brief description of the drawings]
FIG. 1 is a front view showing a long composite material in a conventional and embodiment.
2A and 2B show a long composite material according to an embodiment, wherein FIG. 2A is a cross-sectional view taken along line AA in FIG. 1, FIG. 2B is a cross-sectional view taken along line BB, and FIG.
FIG. 3 is a system diagram of the manufacturing apparatus of the embodiment.
4 is a cross-sectional view taken along the line DD of FIG. 3;
FIG. 5 is a cross-sectional view taken along line EE of FIG.
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 molding 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 Surplus material
19 Resin
20 Uncoiler
21a, 21b, 21c roll forming machine
22 Slitter
23 Coating equipment
24 Baking device
25a, 25b detection device
26 Extrusion Mold
27 Cooling device
28 Picker
29 Cutting device
30 Control device
31 Fixed type
32 Movable type
33 Resin supply path
34, 35, 43 Resin channel
36, 36a, 36b passage
37 Holding member
38, 45 extrusion port
39 Guide members
40 Drive unit
41 Rod
42 Holding part
44 Contact
46 pins
47 Support stand
50 window plate

Claims (11)

To an extrusion mold having a fixed mold and a movable mold,
A continuous molding material having a common cross-sectional portion having substantially the same cross-sectional shape along the longitudinal direction and a changing cross-sectional portion having a cross-sectional shape changing along the longitudinal direction is continuously supplied in the longitudinal direction,
Let the common cross-section of the long molding material pass in the longitudinal direction corresponding to the fixed mold of the extrusion mold and the change cross-section to the movable mold, and the long cross-section is formed along with the passage of the change cross-section in the longitudinal direction. While moving the movable mold in the direction in which the cross section changes and intersects with the material passing direction, the resin is extruded from the extrusion port formed in the movable mold,
A method for producing a transverse cross-section changing long 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-section portion. The method according to claim 1, wherein a long molding material obtained by bending a metal strip is used as the long molding material. The method according to claim 2, wherein a long shaped material obtained by bending a metal strip by roll forming is used. The method according to any one of claims 1 to 3, wherein a continuous long molding material is supplied to an extrusion mold to form a resin portion and then cut at a predetermined position. The method according to any one of claims 1 to 4, wherein the long molding material cut into a predetermined length is sequentially supplied to the extrusion mold. 6. The method according to claim 5, wherein a long molding material made of a metal extrusion molding material and cut into a predetermined length in advance is used. The method according to any one of claims 1 to 6, wherein a resin portion is formed by extruding a resin from a resin extrusion port formed in a fixed mold so as to form a resin portion continuous in the longitudinal direction also in the common cross-section portion. The method according to any one of claims 1 to 7, wherein the cross-sectional shape of the elongated molding material is further changed after the resin portion is formed. Continuously supplying in the longitudinal direction a long molding material having a common cross-sectional portion having substantially the same cross-sectional shape along the longitudinal direction and a changing cross-sectional portion having a cross-sectional shape changing along the longitudinal direction, Provided with an extrusion mold that forms a resin part along the longitudinal direction in the supplied long molding material,
The extrusion mold is provided in the extrusion mold so as to pass the fixed mold provided in the extrusion mold so as to pass the common cross section of the long molding material, and the changed cross section of the long molding material. With movable type,
The movable mold has a resin extrusion port, intersects with the passage direction of the long molding material corresponding to the passage of the changed cross-section portion, and extrudes the resin from the extrusion port while moving in the direction of change of the change cross-section portion. An apparatus for manufacturing a long-cross-section changing composite material, characterized in that a composite material is manufactured by forming a resin portion corresponding to the change in the changing cross-section portion. The apparatus of Claim 9 provided with the drive device which controls the moving amount | distance of a movable mold | type according to the passage amount of a long molding material. The apparatus of Claim 9 or 10 provided with the roll forming apparatus which bends and forms a metal strip and forms a elongate forming material.

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