WO2019058493A1

WO2019058493A1 - Device for manufacturing interior trim for automobile

Info

Publication number: WO2019058493A1
Application number: PCT/JP2017/034203
Authority: WO
Inventors: 泰二郎渡邉; 莉楊
Original assignee: 河西工業株式会社
Priority date: 2017-09-22
Filing date: 2017-09-22
Publication date: 2019-03-28

Abstract

Provided is a device for manufacturing interior trim for an automobile, the device being suitable for preventing the shape failure of a louver integrally molded with a portion of an interior trim body. A second die (2) is provided with: a second forming surface (6) which forms a cavity (3); a recess part (7) formed by recessing a region of the second forming surface (6), said region being the region facing a louver forming part (5) of a first die (1); and a block body (8) attached to the recess part (7), wherein the block body (8) has cracks (9) which face the square-shaped top of a louver (502), and gaps resulting from the cracks (9) function as a means for externally releasing a gas that accumulates in the vicinity of the square-shaped top of the louver (502).

Description

Automotive interior trim manufacturing equipment

The present invention relates to an automobile interior trim manufacturing apparatus for manufacturing an automobile interior trim having a grid-shaped louver in a part of an interior trim body, and in particular, it is suitable for preventing the shape defect of the louver. is there.

Heretofore, with this type of automobile interior trim such as a luggage side trim that constitutes the inner wall of an automobile luggage room, there may be a case where a grid-shaped louver is provided in part of the interior trim main body molded of resin (e.g. See 1). The louver in this case is used as a means to replace the air in the car.

As a car interior trim provided with a louver as described above, for example, as in Patent Document 1, a louver is formed in advance separately from the interior trim main body, and the formed louver is fitted into and attached to the opening of the interior trim main body; There is a type in which the louver is integrally formed on a part of the interior trim main body (hereinafter referred to as "integrally formed type").

A conventional manufacturing apparatus for manufacturing an automotive interior trim provided with the integrally formed type louver as described above (hereinafter referred to as “conventional automotive interior trim manufacturing apparatus”) is provided with a first mold as a lower mold, A second mold is provided as an upper mold opposite to this.

The first mold (lower mold) has a first molding surface for forming a cavity, and a louver molding portion for molding the louver, and the second mold (upper mold) is And a second molding surface for forming a cavity.

And, in the conventional automobile interior trim manufacturing apparatus, resin is injected and filled into the cavity formed by the first mold and the second mold as described above, to thereby form the interior trim main body having a predetermined shape. At the same time, a louver in the shape of a grid is integrally formed of a resin on a part of the interior trim main body.

However, in the entire interior trim for an automobile provided with an integrally formed type louver, the louver portion is particularly complicated and complicated as compared with other portions, such as crossing of longitudinal ribs and transverse ribs constituting a grid shape. It has a structure. In the case of manufacturing an automotive interior trim having such a complicated louver with a conventional automotive interior trim manufacturing apparatus, a portion corresponding to the vicinity of the top of the grid shape of the louver (louver) in the entire cavity. At the upper side of the forming portion), the flow of gas such as air slows down, and so-called gas accumulation is likely to occur. When such a gas reservoir is generated, the gas reservoir inhibits the resin filling into a portion corresponding to the vicinity of the top of the grid of the louver, so that the interior for an automobile manufactured by the conventional automobile interior trim manufacturing apparatus In the trim, there is a problem that the shape defect of the louver easily occurs due to the lack of resin.

Unexamined-Japanese-Patent No. 9-142136

The present invention has been made to solve the above-mentioned problems, and an object thereof is an automobile interior trim manufacturing apparatus suitable for preventing a shape defect of a louver integrally formed on a part of an interior trim main body. To provide.

In order to achieve the above object, the present invention provides an interior trim main body by injection-filling a resin into a cavity formed by a first mold and a second mold opposed to the first mold. In an automobile interior trim manufacturing apparatus for manufacturing an automobile interior trim including a grid-shaped louver in a part of the first and second molds, the first mold includes a first molding surface forming the cavity, and the louver. And a second molding surface for forming the cavity, and a surface of the entire second molding surface facing the louver molding portion. The block body has a split facing the top of the grid of the louver, and the gap formed by the split is the grid of the louver. Gas that accumulates near the top Characterized in that it functions as a means for releasing the parts.

In the present invention, the groove is formed on the surface of the block body, and the small block produced corresponding to the width and length of the groove is fitted and fixed in the groove, and the fitting is fixed. The structure may be characterized in that a gap formed between the small block and the groove is used as the crack.

In the present invention, the block body is divided into a plurality of divided block pieces, and the divided plurality of divided block pieces are in a state of being connected and fixed by a fixing pin, and a gap formed between the divided block pieces It may be characterized in that it is structured to use as the aforementioned split.

In the present invention, the mesh shape of the louver is constituted by a first rib and a second rib in a form in which a linear shape portion and a curve shape portion are continuously connected, and the second rib The small block is divided into a straight region and a curved region based on the straight shape portion and the curved shape portion, and in the portion corresponding to the straight region in the entire block body, the small block is a straight line of the second rib It is a form cut out from the block material by a straight cut line along the shape portion, while in the portion corresponding to the curved region, the small block intersects the curved shape portion of the second rib It may be characterized in that it is in the form of being cut out from the block material at a straight cut line along the minute.

In the present invention, the mesh shape of the louver is constituted by a first rib and a second rib in a form in which a linear shape portion and a curve shape portion are continuously connected, and the second rib The groove is divided into a linear region and a curved region based on the linear shape portion and the curved shape portion, and in the portion corresponding to the linear region in the entire block body, the groove has a linear shape of the second rib And the small block is cut out from the block material at a straight cut line along the linear shape portion of the second rib, and the curve In the part corresponding to the region, the groove is in the form of a straight line along a line segment intersecting the curved shape of the second rib, and the small block is a curve of the second rib Shape and May be characterized by a linear cut line along the line of difference has become a form cut from the block material.

According to the present invention, as a specific configuration of the interior trim manufacturing apparatus for a car, as described above, the block body has a split facing the top of the grid of the louver, and the gap by the split is the top of the grid of the louver. We adopted a structure that functions as a means to release the gas accumulated in the vicinity to the outside. For this reason, since it becomes difficult to generate gas accumulations, such as air, in the vicinity of the top of the grid of the louver, the problem due to the resin is not sufficiently filled in such a gas pool, that is, around the top of the grid of the louver. Can be effectively prevented.

FIG. 1 (a) is a cross-sectional view showing an essential part of an automobile interior trim manufacturing apparatus to which the present invention is applied, and FIG. 1 (b) is a schematic plan view of an automobile interior trim manufactured by the automobile interior trim manufacturing apparatus. The figure and the figure (c) are AA line sectional views in the figure (a). Fig.2 (a) is a top view of the 1st metal mold | die which comprises the interior trim manufacturing apparatus for motor vehicles shown in FIG. 1, FIG.2 (b) is BB sectional drawing in the same figure (a). Fig.3 (a) is a top view of the 2nd metal mold | die which comprises the interior trim manufacturing apparatus for motor vehicles shown in FIG. 1, FIG.3 (b) is CC sectional view taken on the line in the same figure (a). FIG. 4 is a perspective view of one structural example of a block body adopted by the second mold as the first embodiment of the present invention. FIG. 5 is a perspective view of another structural example of the block adopted in the second mold as the second embodiment of the present invention. FIG. 6 is a perspective view of another configuration example of the block adopted in the second mold as the third embodiment of the present invention.

Hereinafter, the best mode for carrying out the present invention will be described in detail with reference to the attached drawings.

FIG. 1 (a) is a cross-sectional view showing an essential part of an automobile interior trim manufacturing apparatus to which the present invention is applied, and FIG. 1 (b) is a schematic plan view of an automobile interior trim manufactured by the automobile interior trim manufacturing apparatus. The figure and the figure (c) are AA line sectional views in the figure (a). 2 (a) is a plan view of a first mold constituting the automobile interior trim manufacturing apparatus shown in FIG. 1, and FIG. 2 (b) is a sectional view taken along the line BB in FIG. 2 (a). 3 (a) is a plan view of a second mold constituting the automobile interior trim manufacturing apparatus shown in FIG. 1, and FIG. 3 (b) is a cross-sectional view taken along the line CC in FIG. FIG. 2 is a perspective view of a block body adopted in a second mold as a first embodiment of the present invention.

The automobile interior trim manufacturing apparatus M of FIG. 1A injects and fills a resin into a cavity 3 formed by a first mold 1 and a second mold 2 opposed to the first mold 1. By doing this, the resin molded product shown in FIGS. 1 (a) and 1 (b), specifically, an automobile interior trim 500 having a mesh-shaped louver 502 on a part of the interior trim main body 501 is manufactured. It is a thing.

Referring to FIG. 2, the first mold 1 includes a first molding surface 4 forming a cavity 3 (see FIG. 1A) and a louver molding portion 5 for molding the louver 502. .

The first molding surface 4 forms the back surface of the automobile interior trim 500, that is, the surface facing the vehicle body panel of the automobile.

The louver molding portion 5 is provided at a position corresponding to a part of the entire first molding surface 4 described above and the louver 502 of the interior trim 500 for a car. Further, the louver molding portion 5 is provided with vertical and horizontal grooves 5A corresponding to the lattice shape of the louver 502 in order to form the lattice-shaped louver 502 in a part of the automobile interior trim 500, and in the vertical and horizontal grooves 5A. By being filled with the resin, the louver 502 in a grid shape is configured to be formed as a part of the interior trim 500 for an automobile. In addition, since the specific structure of the louver molding part 5 for shape | molding such a louver shape louver 502 is known, the detailed description beyond this is abbreviate | omitted.

Referring to FIG. 3, the second mold 2 includes a second molding surface 6 forming the cavity 3 (see FIG. 1A), and the louver molding portion 5 of the entire second molding surface 6. It has a recess 7 provided in the opposite surface and a block body 8 mounted in the recess 7.

The second molding surface 6 is formed by transferring the design surface of the interior trim 500 for a car, that is, the design surface to form a surface exposed to the interior of the car.

The recess 7 is configured to be able to accommodate the block body 8 in the inner space thereof. There is a gap G1 (hereinafter referred to as "first fitting gap G1") between the block body 8 fitted in the recess 7 and the recess 7 due to a fitting tolerance or the like. The first fitting gap G1 is used as a degassing passage. Further, in a state where the first mold 1 and the second mold 2 are in contact (mold closed state), the first fitting gap G1 communicates with the outside through a gap (not shown) of the butting portion. It is configured to

Referring to FIG. 4, the block body 8 has a crack 9 opposed to the ridge-shaped top of the louver 502, and a means by which the gap by the crack 9 escapes the gas accumulated near the grid-shaped peak of the louver 502 to the outside It is structured to function as

As a specific configuration for forming the cracks 9 of the block body 8, in the configuration example of FIG. 4 (hereinafter referred to as “first embodiment”), the groove 801 is formed on the surface of the block body 8 and A structure in which the small block 802 manufactured corresponding to the width and length dimensions of the groove 801 is fitted and fixed to the groove 801, and a fitting tolerance or the like between the small block 802 and the groove 801 thus fitted. Since a gap is formed, a structure is employed in which such a gap is used as the above-mentioned gap 9.

Also, in this first embodiment (example in FIG. 4), as a specific structural example for fixing the small block 802 to the block 8, the small block 802 is penetrated from one side of the block 8 The small block 802 is attached to and fixed to the block body 8 by forming a through hole 803 extending to the other side surface of the body 8 and inserting the fixing pin 804 into the through hole 803.

In the case of adopting the fixing structure of the small block body 802 by the fixing pin 804 as described above, a gap (hereinafter referred to as a “second fitting gap G2”) due to a fitting tolerance or the like between the fixing pin 804 and the through hole 803. The second fitting gap G2 communicates with the above-mentioned crevice 9 at the boundary between the block 8 and the small block 802). For this reason, gas such as air that has entered the gap 9 can escape to the side surface of the small block 802 through the second fitting gap G2. From this, the second fitting gap G2 can also be used as the degassing passage, similarly to the first fitting gap G1.

Furthermore, in the first embodiment (the example of FIG. 4), the lateral groove 805 and the longitudinal groove 806 are formed on the side surface of the block body 8. Referring to FIG. 4, the lateral groove 805 communicates with at least the second fitting gap G2, and the longitudinal groove 806 communicates with at least the lateral groove 805 and opens toward the inner wall of the recess 7. It is configured to communicate with the first fitting gap G1 described above. For this reason, gas such as air which has entered the crack 9 can escape to the first fitting gap G1 through the second fitting gap G2 and the lateral groove 805 and the longitudinal groove 805.

As an example of a configuration to increase the path for releasing gas such as air that has entered the crevice 9 up to the first fitting gap G1, both ends or any one end of the lateral groove 805 open toward the inner wall of the recess 7 It may be configured to communicate with one fitting gap G1. The longitudinal groove 806 may communicate with the second fitting gap G2.

By the way, when manufacturing the interior part 500 for an automobile of FIG. 1B by the interior trim manufacturing apparatus M for an automobile of FIG. 1A configured as described above, as shown in FIG. In a state where the mold 1 and the second mold 2 are abutted (mold closed state), resin is injected and filled into the cavity 3 from a resin injection nozzle (not shown) provided on the first mold 1 side.

The resin injected as described above is also supplied to a portion of the entire cavity 3 corresponding to the vicinity of the top of the grid shape of the louver 502, that is, the upper side of the louver molding portion 5. At this time, a gas such as air located near the top of the grid of the louver 502 can escape to the outside through the gap due to the fracture 9, so there is a low possibility that a gas pool will occur near the top of the grid of the louver 502. . Therefore, such gas accumulation does not inhibit the filling of the resin on the upper side of the louver molding portion 5 (the portion corresponding to the vicinity of the top of the grid of the louver), and hence the shape of the louver 502 due to the resin shortage. Defects are effectively prevented.

FIG. 5 is a perspective view of another configuration example of the block adopted in the second mold as the second embodiment of the present invention.

In the configuration example of FIG. 5 (hereinafter referred to as “the second embodiment”), the same members as those of the first embodiment (the configuration example of FIG. 4) described above are given the same reference numerals, and the details thereof The description is omitted because it is redundant.

In the second embodiment (configuration example in FIG. 5), the tapered portion 10A is formed by chamfering at the corner of the small block 802, or the tapered portion 10B is formed by chamfering at the upper edge of the groove 801. By doing this, the entrance side of the crack 9 is configured to be expanded in shape as compared to the back portion thereof.

FIG. 6 is a perspective view of another configuration example of the block adopted in the second mold as the third embodiment of the present invention.

The configuration example of FIG. 6 (hereinafter referred to as “third embodiment”) is the same as the first embodiment (configuration example of FIG. 4) or the second embodiment (configuration example of FIG. 5) described above. The same reference numerals are given to the members of the above, and the detailed description thereof will be omitted because it is redundant.

In this third embodiment (configuration example in FIG. 6), as a specific configuration for forming the split 9 of the block body 8, a plurality of (specifically, three) divided block pieces of the block body 8 are provided. In the structure in which a plurality of divided block pieces 807 which are divided into 807 and divided are connected and fixed by the fixing pin 804 and a space on the divided structure is formed between the divided block pieces 807, such a clearance It adopts a structure to be used as The number of divided block pieces 807 can be appropriately increased or decreased as needed, and is not limited to three.

Further, in the third embodiment (the configuration example in FIG. 6), on the surface of the divided block piece 807, the intersecting groove 91 which intersects the crack 9 is provided. By the way, referring to FIG. 1B, since the louver 502 provided in the interior trim main body 501 has the grid shape as described above, the planar shape of the entire louver 502 is a longitudinal rib as a first rib constituting the grid shape. It has a configuration in which 502A and a transverse rib 502B as a second rib intersect. For this reason, the mesh-like tops of the louvers 502 are also in the form of crosses in which the longitudinal ribs 502A and the transverse ribs 502B intersect. Here, in the case where the crack 9 is disposed along the longitudinal rib 502A, for example, among the above-described fracture 9 and the intersecting groove 91, the crossover groove 91 is disposed along the transverse rib 502B. On the contrary, when the split 9 is disposed along the transverse rib 502B, the intersecting groove 91 is disposed along the longitudinal rib 502A.

Referring to FIG. 1 (b), the grid shape of louver 502 is constituted by longitudinal rib 502A, and transverse rib 502B in which linear portion ST and curved portion CU are continuously connected, and a transverse rib It is divided into a straight line area ST 'and a curve area CU' based on the straight line shaped part ST and the curve shaped part CU of 502B.

Therefore, in the case of adopting the first embodiment (the configuration example in FIG. 4) or the second embodiment (the configuration example in FIG. 5) described above, the linear shape portion ST or the curve shape portion of the horizontal rib 502B It is necessary to cut and form the groove 801 and cut out the small block 802 from the block material so as to match the shape of the CU. Also, even in the case of adopting the third embodiment (configuration example in FIG. 6) described above, the block material is divided from the block material so as to match the shapes of the straight shape portion ST of the horizontal rib 502B and the curve shape portion CU It is necessary to cut out the piece 807.

However, with the current machining technology, the work of precisely cutting small blocks 802 and divided block pieces 807 including a curved shape like a curved portion CU from a block material is difficult and takes a long time, and the processing cost Can not but get high.

Therefore, in the automobile interior trim manufacturing apparatus of FIG. 1 (a), as shown in FIG. 3 (a), corresponding to the division of the straight area ST 'and the curve area CU' in the grid shape of the louver 502 as described above. The block body 8 is configured.

That is, in the first embodiment (the configuration example in FIG. 4) and the second embodiment (the configuration example in FIG. 5) described above, the configuration of the block 8 corresponding to the area division is the entire block 8 In the portion ST ′ ′ corresponding to the linear region ST ′, the linear groove 801 along the linear shape portion ST of the lateral rib 502B and the linear cut line along the linear shape portion ST of the lateral rib 502B block A small block 802 in a form cut out from the material is adopted. On the other hand, in a portion CU ′ ′ corresponding to the curved region CU ′, a straight groove 801 along a line segment intersecting the curved portion CU of the lateral rib 502B and a line segment intersecting the curved portion CU of the lateral rib 502B. And a small block 802 in a form cut out from the block material at a straight cut line along the line.

Further, the configuration of the block body 8 corresponding to the area division can be applied to the block body 8 composed of the divided block pieces 807 adopted in the third embodiment (configuration example in FIG. 6). In this case, the configuration of the block body 8 is such that in the portion ST ′ ′ corresponding to the linear region ST ′ of the entire block body 8, the block material is a straight cut line along the linear shape portion ST of the horizontal rib 502B. While the divided block piece 807 in the cut out form is adopted, in a part CU ′ ′ corresponding to the curved area CU ′, a straight cut line along a line segment intersecting the curved shape part CU of the horizontal rib 502B. A divided block piece 807 in a form cut out from the block material is adopted.

According to the configuration of the block body 8 corresponding to the area division as described above, the small block 802 and the divided block piece 807 are cut out along a straight cut line even if the louver 502 includes the curve area CU ′ Therefore, the cutting work is easy, takes less time, and the processing cost is low.

According to the first to third embodiments described above, each of the block bodies 8 has the splits 9 facing the square-shaped crests of the louvers 502 as a specific configuration of the interior trim for an automobile, A gap due to the crack 9 functions as a means for escaping the gas accumulated near the top of the grid of the louver 502 to the outside. For this reason, it is difficult to generate a gas reservoir such as air in the vicinity of the top of the grid of the louver 502, so the problem due to the resin not being sufficiently filled in such a gas pool, that is, the top of the grid of the louver 502 Shape defects that occur in the vicinity can be effectively prevented.

The present invention is not limited to the embodiments described above, and many modifications can be made by those skilled in the art within the technical concept of the present invention.

Although the said embodiment demonstrated the example which employ | adopted the longitudinal rib 502A as a 1st rib and the transverse rib 502B as a 2nd rib, it is not limited to this. The present invention can also be applied to an example in which the longitudinal rib 502A is replaced with the lateral rib and the lateral rib 502B is replaced with the longitudinal rib in the embodiment.

DESCRIPTION OF SYMBOLS 1 first mold 2 second mold 3 cavity 4 first molding surface 5 louver molding portion 5A vertical and horizontal groove 6 second molding surface 7 concave portion 8 block body 801 groove 802 small block 803 through hole 804 fixing pin 805 Horizontal groove 806 Vertical groove 807 Divided block piece 9 Crack 91

Cross groove

10A, 10B Tapered portion 500 Interior trim for automobile 501 Interior trim main body 502 Louver 502A Vertical rib (first rib)
502B horizontal rib (second rib)
CU Curved portion CU 'of the rib horizontal section Curved region ST Straight portion of the rib section ST' Straight region M Automotive interior trim manufacturing device G1 1st fitting gap G2 2nd fitting gap

Claims

A portion of the interior trim main body is provided with a grid-shaped louver by injection-filling a resin into a cavity formed by the first mold and the second mold opposed to the first mold. In an automobile interior trim manufacturing apparatus that manufactures an automobile interior trim,
The first mold is
A first molding surface forming the cavity;
A louver forming portion for forming the louver,
The second mold is
A second molding surface forming the cavity;
A recess formed in the surface facing the louver molding portion in the entire second molding surface;
And a block body mounted in the recess.
The block body is
An automobile interior trim manufacturing apparatus having a crack facing the top of the grid of the louver, and a gap formed by the crack functions as a means for releasing gas accumulated near the top of the grid of the louver to the outside. .
A groove is formed on the surface of the block body, and a small block produced corresponding to the width and length of the groove is fitted and fixed to the groove, and the small block fitted and fixed The interior trim manufacturing apparatus for an automobile according to claim 1, wherein a gap formed between the groove and the groove is used as the split.
The block body is divided into a plurality of divided block pieces, and the divided plurality of divided block pieces are connected and fixed by a fixing pin, and a gap formed between the divided block pieces is used as the split. The vehicle interior trim manufacturing apparatus according to claim 1, wherein:
The grid shape of the louver is constituted by the first rib and the second rib in the form in which the straight portion and the curve portion are continuously connected, and the straight portion and the curve of the second rib It is divided into a straight area and a curve area based on the shape part,
While the small block is cut out of the block material at a portion corresponding to the linear region in the entire block body, the small block is cut along a linear cut line along the linear shape portion of the second rib In the portion corresponding to the curved region, the small block is cut out of the block material at a straight cut line along a line segment intersecting the curved shape portion of the second rib. The automobile interior trim manufacturing apparatus according to claim 2, characterized in that
The grid shape of the louver is constituted by the first rib and the second rib in the form in which the straight portion and the curve portion are continuously connected, and the straight portion and the curve of the second rib It is divided into a straight area and a curve area based on the shape part,
In the portion corresponding to the linear region in the entire block body, the groove is in the form of a straight line along the linear-shaped portion of the second rib, and the small block is the second The groove is cut out from the block material by a straight cut line along the linear shape portion of the rib, while the groove intersects with the curved shape portion of the second rib in the portion corresponding to the curved region In the form of a straight line along the line segment to be cut, and the small block is cut out from the block material at a straight cut line along the line segment intersecting the curve-shaped portion of the second rib The automobile interior trim manufacturing apparatus according to claim 3, characterized in that: