JP2015112821A - Method for manufacturing molding - Google Patents

Abstract

PROBLEM TO BE SOLVED: To efficiently manufacture a molding with a skin.SOLUTION: A pillar garnish in which a base material and a skin 14 are joined is obtained by: setting the skin 14 in a cavity 23 by pressing the skin 14 by a holding body 35 to a side of a rear mold 30 for molding the rear of the pillar garnish, on a position surrounding a range wider than an opening of a base material; pouring a resin material P comprising the base material into between the skin 14 stored in the cavity 23 and the rear mold 30; deforming the skin 14 by the resin material P toward an area inside surrounded on the holding position of the skin 14 by the holding body 35; molding the base material by hardening the resin material P in a state that the skin 14 is pressed to a regulation surface 36 and a surface molding surface 33 of the holding body 35; and thus, arranging the skin 14 at the front side of the base material followed by arranging the skin 14 toward an opening edge reverse side of the opening of the base material.

Description

  The present invention relates to a method for producing a molded article in which a skin is disposed from the front side of a base material and the opening edge back side of the opening of the base material from the front side.

  Molded products in which a skin is disposed on the front side of a synthetic resin base material having a required shape are widely used as vehicle interior members, furniture, and the like. As a manufacturing method of a molded product in which such a skin is disposed, (1) a method in which only a base material is previously formed into a required shape, and the skin is pasted on the surface of the base material (post-skin pasting method) ), And (2) a method of disposing the skin on the front side of the formed base material by forming the base material with the skin set in a mold for forming the base material (skin integral molding method), There is. Here, the manufacturing method (2) is disclosed in Patent Document 1.

  In addition, some molded products have an opening that penetrates the front and back at a required position of the base material. Such a molded article is provided with a surplus length portion extended from the opening end of the opening formed in the base material on the skin, and the surplus length portion is wound around the back side of the base material and joined to the back surface of the base material. Thus, the skin is prevented from peeling from the base material, and the aesthetic appearance is improved.

JP-A-2-127018

  By the way, it is difficult to automate the operation of winding and joining the extra length portion of the epidermis to the back side of the base material through the opening formed in the base material, in any of the manufacturing methods (1) and (2), The actual situation is that it is manually performed in the next step after the skin is disposed on the front side of the substrate. However, the wrapping work of the skin is not efficient because it involves the work of winding the skin on the back side and the work of joining the extra length of the wrapped skin to the back surface of the base material by welding or adhesion.

  Therefore, the present invention has been proposed to solve these problems in view of the above-described problems inherent in the method for producing a molded product according to the prior art. It aims at providing the method which can manufacture a molded article with a skin efficiently by performing simultaneously shaping | molding of the skin wound over the front side and the opening edge back side of this base material.

In order to solve the above-mentioned problems and achieve the intended object, the invention according to claim 1 of the present application manufactures a molded product in which a skin is disposed on the front side of the base material and the back side of the opening edge of the opening in the base material. A way to
A surplus portion extending inward from a holding position that surrounds a wider area than the opening in the outer skin is pressed by a holder on the back molding die side for molding the back side of the molded product, and the outer skin is set in a cavity. ,
Injecting a resin material forming the base material between the backside mold and the skin accommodated in the cavity,
The base material is formed on the front side of the base material by molding the base material in a state where the base material is deformed by the resin material toward the inner side of the region surrounded by the holding position. The gist is to obtain a molded product in which the base material and the skin are joined by arranging the skin over the back side of the opening edge of the opening.
According to the first aspect of the present invention, the excess length portion in a range wider than the opening of the base material in the skin is pressed against the back side mold by the holding body, and the back side mold and the skin accommodated in the cavity are formed. By injecting the resin material forming the base material therebetween, the skin inside the cavity pressed by the resin material is deformed toward the inside of the region surrounded by the holding position of the skin by the holding body. By molding the base material in this state, the skin can be shaped so as to extend from the front side of the base material to the back side of the opening edge of the opening in the base material. Therefore, when molding the base material, not only the skin can be placed on the front side of the base material, but also the skin can be placed from the front side of the base material to the back side of the opening edge. The work of winding and joining to the surface becomes unnecessary, and a molded product with a skin can be produced efficiently.

In the invention according to claim 2, the extra length portion of the skin is pressed by the holding body so as to be separated from the closed end that defines the opening in the cavity, and the skin is exposed to the cavity from the back mold side. Set it like
The outer skin is deformed by the resin material toward the closed end of the cavity extending inside the region surrounded by the holding position, and the holding body defining the closed end and the front side of the molded product in the cavity are molded. The gist is that the base material is molded with the skin pressed against the front side mold.
According to the invention of claim 2, the base material is pressed in a state where the skin deformed by the resin material toward the closed end side defining the opening in the cavity is pressed against the holding body and the front mold that define the closed end of the cavity. Therefore, the opening of the base material can be molded neatly. Further, since the shaping of the skin is not performed manually, the shape of the skin in each obtained molded product is constant, and the quality of the molded body can be stabilized.

In the invention which concerns on Claim 3, the insertion member is defined by inserting the guide member provided in the said holding body in the insertion part formed in the said extra length part, and expanding this insertion part, and this insertion After the outer skin is disposed between the holding body and the back side molding die through the holding body separated from the back side molding die in a state where an opening is defined, the extra length is provided between the holding body and the back side molding die. Set the epidermis in the cavity across the part,
The gist of the present invention is that the guide member is configured to expand outward as it goes from the insertion end side of the insertion portion of the skin to the delivery end side to the holding body.
In the invention according to claim 3, by inserting a guide member that expands outward from the insertion end side toward the delivery end side to the holding body, into the insertion portion formed in the extra length portion of the skin, The insertion portion is expanded to form an insertion opening through which the guide member and the holding body are inserted, and the holding body can be easily passed through the insertion opening. In addition, since the guide member can easily pass the holding body through the insertion portion, the time for setting the skin in the cavity is shortened, and the manufacturing cost can be further reduced.

In the invention according to claim 4, by pushing out the skin set in the cavity before injecting the resin material by a demolding means for extruding the obtained molded product and demolding from the back side mold, The gist is that the epidermis is loosened.
According to the invention of claim 4, the molded product is pushed by the injected resin material by loosening the skin before the resin material is injected by the mold releasing means for releasing the molded product from the back mold. The deformation allowance of the epidermis can be made. Thereby, it becomes easy to shape the skin into an appropriate shape at the time of molding the base material.

  According to the method for producing a molded article according to the present invention, the molding with a skin is performed by simultaneously performing the molding of the substrate and the shaping of the skin wound on the surface side of the substrate and the back side of the opening edge of the substrate. The product can be manufactured efficiently.

It is a schematic perspective view of the pillar garnish manufactured with the manufacturing method of the Example. It is the XX sectional view taken on the line of FIG. It is sectional drawing of the shaping | molding apparatus used for the manufacturing method of an Example, (a) shows the mold open state of a back side shaping | molding die and a front side shaping | molding die, (b) is a back side shaping | molding die and a front side shaping | molding die. The mold closed state is shown. It is a fragmentary perspective view which shows the holding body and recessed part provided in the back side shaping | molding die, the insertion part provided in the outer skin, and the extra length part. It is the schematic which shows the structure of a skin supply apparatus. It is explanatory sectional drawing which shows the state which sets an epidermis to a guide member. It is explanatory sectional drawing which shows the state which set the guide member which set the skin to the front wall of a holding body. It is explanatory sectional drawing which shows the state which passed the guide member and the holding body through the insertion part, and located the outer skin between the holding body and the back surface molding surface of the back side shaping | molding die. It is explanatory sectional drawing which shows the state which moved the holding body from the insertion / removal position to the pressing position, and pressed down the extra length site | part of the outer skin with this holding body and the recessed part. It is explanatory sectional drawing which shows the state which protruded the protrusion pin from the back side shaping | molding die, and slackened the skin. It is explanatory sectional drawing which shows the state which closed the front side shaping | molding die to the back side shaping | molding die, and set the skin in the cavity. It is explanatory sectional drawing which shows the state which inject | poured the resin material used as a base material between an outer skin and the back surface molding surface of a back side shaping | molding die. It is explanatory sectional drawing which shows roughly the deformation process of the skin by the resin material inject | poured between the skin and the back surface molding surface of the back side shaping | molding die, (a) shows the initial state in which the resin material was inject | poured , (B) shows a state in which the resin material comes into contact with the epidermis and the epidermis is deformed toward the inside of the region surrounded by the holding position of the epidermis by the holding body, and (c) shows that the epidermis is defined by the holding body. The state pressed against the surface and the surface molding surface is shown. It is explanatory sectional drawing which shows the state which shaping | molding of the base material was completed by hardening of the resin material, and the front side shaping | molding die was opened from the back side shaping | molding die. It is explanatory sectional drawing which shows the state which demolds the obtained pillar garnish from a back side shaping | molding die, Comprising: (a) is a state in the middle of projecting a pillar garnish by projecting a projecting pin and moving a holding body to an insertion / removal position (B) shows a state in which the epidermis is detached from the holding body by further protruding the protruding pin to the protruding position after setting the holding body to the insertion / removal position. It is explanatory sectional drawing which shows the state which isolate | separates the excess part of an epidermis from the obtained pillar garnish. It is explanatory sectional drawing which shows the weak part formed in the skin along the holding | maintenance position. It is explanatory sectional drawing which shows the manufacturing method by the manufacturing apparatus of another form which comprised the holding body in the back side shaping | molding body separately, Comprising: (a) positions a skin in a back side shaping | molding die, and is different from this back side shaping | molding die. The state where the holding body configured in the body is directly opposed to the concave portion across the epidermis, and (b) is a state in which the epidermis is pressed between the holding body and the concave portion by fitting the holding body into the concave portion. (C) shows a state in which the pillar garnish is projected by detaching from the recess while the holding body is held by the skin by protruding the protruding pin after the molding of the base material is completed.

  Next, a method for manufacturing a molded product according to the present invention will be described below with reference to the accompanying drawings by way of preferred examples. In the embodiment, a pillar garnish that is a vehicle interior member disposed in a passenger compartment of an automobile is exemplified as a molded article having a skin.

(Pillar Garnish)
FIG. 1 is a schematic perspective view of a pillar garnish 10 disposed on the upper side of a center pillar portion of a vehicle body from the passenger compartment side. The pillar garnish 10 includes a synthetic resin base 12 formed in a required shape, and a skin 14 disposed on the front side of the base 12. The base material 12 is a plate-like member having a required thickness (2 to 3 mm) and curved on both sides on the front and rear sides of the vehicle body, and an opening 13 is formed at the center lower portion of the base material 12. A seat belt (not shown) pulled out from a seat belt retractor disposed below the center pillar portion is inserted into the opening 13 from the back side of the pillar garnish 10 to the front side. . The skin 14 includes a covering portion 14a bonded to the surface 12a of the base material 12, and a winding portion 14b wound around the back side of the opening edge of the opening 13 and bonded to the back surface 12b of the base material 12, The opening edge of the opening 13 is covered with a skin 14. Thereby, the opening (hereinafter referred to as “product opening”) 10a of the pillar garnish 10 is defined by the skin 14 covering the opening edge of the base 12 (see FIG. 2). In the embodiment, the opening shape of the opening 13 is illustrated as a simple rectangular shape, but the shape, size, opening position, and the like of the opening 13 are different for each vehicle body.

(Molding equipment)
The pillar garnish 10 of the embodiment is molded by the molding apparatus 22 shown in FIGS. 3 and 4. The forming apparatus 22 is supplied with the sheet-shaped skin 14 before shaping by a skin supplying apparatus 24 shown in FIG. The molding apparatus 22 is configured to mold the base 12 and shape the skin 14 with the cavity 23 defined therein and the skin 14 set in the cavity 23. That is, the molding apparatus 22 includes a step of injection molding the base material 12 having the opening 13, and a step of shaping the covering portion 14 a and the entrainment portion 14 b from the sheet-like skin 14 and joining the skin 14 to the base material 12. It is comprised so that it can perform simultaneously.

  As shown in FIGS. 3A and 3B, the molding apparatus 22 includes a back-side mold 30 and a front-side mold 32, and a holding body 35 disposed on the back-side mold 30. . In the molding apparatus 22, the back-side mold 30 is installed on the base 34, and the front-side mold 32 is disposed above the back-side mold 30. The opening-side mechanism (not shown) causes the front-side mold 32 to be connected to the back-side mold 30. It is comprised so that it may adjoin and space apart. The back side molding die 30 is a core mold in which a back side molding surface 31 that defines the shape of the back side of the pillar garnish 10 is formed, and the back side molding surface 31 as a whole projects upward. On the other hand, the front side molding die 32 has a surface molding surface 33 that defines the shape of the front side of the pillar garnish 10, and the surface molding surface 33 is a mold that is recessed upward as a whole. Then, the molding device 22 moves the front side molding die 32 close to the back side molding die 30 and closes the mold, so that the back side molding surface 31, the specified surface 36 and the surface molding surface 33, which will be described later, of the holding body 35 are used. The cavity 23 is defined (see FIG. 3B).

(Retainer)
As shown in FIG. 3A, FIG. 3B, and FIG. 4, the back-side mold 30 is provided with a holding body 35 that presses a part of the skin 14 against the back-side mold 30 side. . The holding body 35 is configured to be movable back and forth so as to approach and separate from the back side mold 30, and in the embodiment, moves in the same direction (vertical direction) as the mold opening / closing direction of the front side mold 32. Yes. The holding body 35 presses the extra length portion 17 of the outer skin 14 extending inward from the holding position that surrounds a range wider than the size of the opening 13 to be opened in the base material 12, between the back-side mold 30. It is configured to be possible. Here, the holding position becomes the back side of the base material 12 after the base material 12 is molded, and is separated from the opening end of the opening 13 formed in the base material 12 in the direction toward the outside of the opening 13. Set to position. In the embodiment, the holding position of the skin 14 by the holding body 35 is defined so as to surround the position where the opening 13 is to be formed, and the edge of the winding portion 14b of the skin 14 is defined. Further, the holding body 35 presses the surplus length portion 17 of the skin 14 within a range including the position where the opening 13 is to be formed, and extends to a region inside the holding position surrounding the outside of the position where the opening 13 is to be formed. The extra length portion 17 of the skin 14 is covered. Further, by pressing the extra length portion 17 of the skin 14 by the holding body 35, the skin 14 is made to face the cavity 23 from the back side mold 30 side so as to be separated from the closed end defining the opening 13 in the cavity 23. Set. That is, the holding body 35 holds the extra length portion 17 of the outer skin 14 extending inside the region surrounded by the holding position of the outer skin 14 so as not to be exposed to the cavity 23 with the recess 40. It is configured such that the molded product component portion of the skin 14 extending outside the region surrounded by the position can face the cavity 23 except for the end of the skin 14.

  As shown in FIG. 4, the holding body 35 includes holding surfaces 37 and 38 that sandwich the extra length portion 17 of the skin 14 between holding receiving surfaces 41 and 42 (to be described later) of the back side mold 30, and the holding surfaces 37, 38. 38, and has a defining surface 36 facing the outside of the back mold 30 when the skin 14 is pressed by the retaining surfaces 37, 38, and the outer edges of the retaining surfaces 37, 38 define the above-mentioned holding position. ing. The holding body 35 of the embodiment is a block-shaped member formed in a substantially rectangular parallelepiped shape, and the holding surfaces 37 and 38 are first holdings formed by a back wall extending so as to intersect the moving direction of the holding body 35. It is constituted by a surface 37 and a second holding surface 38 formed by an outer peripheral wall extending along the moving direction of the holding body 35 and continuing to the outer peripheral edge of the back wall. In the embodiment, the outer edges of the first holding surface 37 and the second holding surface 38 are aligned, and the outer edge of the first holding surface 37 that is continuous with the defining surface 36 that forms part of the molding surface in the cavity 23 is the holding position. The holding body 35 is configured such that a defining surface 36 formed by a front wall extending so as to be orthogonal to the second holding surface 38 (parallel to the first holding surface 37) faces the front-side mold 32. The holding body 35 is set so that the outer dimension is the largest at the outer edge of the holding surface that defines the holding position of the skin 14. In the holding body 35 of the embodiment, the upper edge of the second holding surface 38 is held. It is configured to be in position. Here, in the holding body 35, the planar shape formed by the upper edge of the second holding surface 38 is set according to the shape of the opening 13 of the base material 12, and in the embodiment, according to the opening shape of the opening 13 having a rectangular shape. The outer peripheral wall serving as the second holding surface 38 extends so that the planar shape is a rectangular shape that is slightly larger than the opening 13. In other words, the holding body 35 has a rectangular shape in which a defining surface 36 formed by a front wall continuous with the upper edge of the outer peripheral wall is slightly larger than the opening 13. Further, a support part 39 protruding downward is formed in the center of the back wall of the holding body 35, and the support part 39 is a first guide part 43 (described later, FIG. 3 and FIG. 3) provided on the back side mold 30. 4)).

(Holding surface)
The back-side mold 30 includes holding receiving surfaces 41 and 42 that sandwich the extra length portion 17 of the skin 14 between the holding surfaces 37 and 38 of the holding body 35. The holding receiving surfaces 41 and 42 are configured to face the holding surfaces 37 and 38 according to the holding surfaces 37 and 38 of the holding body 35. The holding receiving surfaces 41 and 42 of the embodiment are provided in a recessed portion 40 that is recessed from the back surface molding surface 31 of the back side molding die 30 so as to open to the back surface molding surface 31 side. The concave portion 40 is formed in a rectangular shape capable of accommodating the holding body 35, and the holding receiving surfaces 41 and 42 are bottoms extending in a direction intersecting with the moving direction (vertical direction in the embodiment) of the holding body 35. A first holding receiving surface 41 formed by a wall and a second holding receiving surface 42 formed by an inner peripheral wall extending along the moving direction of the holding body 35 and continuing to the outer peripheral edge of the bottom wall. Thus, in the embodiment, corresponding to the two first holding surfaces 37 and second holding surfaces 38 having different orientations in the holding body 35, the two first holding receiving surfaces 41 and second holding receiving surfaces 42 having different orientations. Is provided on the back-side mold 30.

  As shown in FIG. 3, the back-side mold 30 is provided with a slide mechanism that slides the holding body 35. The slide mechanism includes a first actuator 44 disposed below a first guide portion 43 formed so as to open at the center of the bottom wall of the recess 40. The first guide portion 43 extends along the mold opening / closing direction of the front side molding die 32 (in the embodiment, the vertical direction), and the support portion 39 moves along the first guide portion 43 to hold it. The body 35 is movable in the vertical direction. The tip of the first rod 44 a extending upward from the main body of the first actuator 44 is connected to the bottom of the support portion 39. Accordingly, the holding body 35 is inserted into the recess 40 by the operation of the first actuator 44, and the pressing position (see FIGS. 3B and 9) pressing the skin 14 between the recess 40 and the recess 40 It moves in the vertical direction between the insertion / removal position (see FIG. 3A, FIG. 7 and FIG. 8) that protrudes outward from the back mold 30 and allows the skin 14 to be inserted into and removed from the recess 40. It is configured to be possible. In the embodiment, when the holding body 35 is in the pressing position, the defining surface 36 of the holding body 35 is flush with the back surface molding surface 31 and the first holding surface 37 faces the first holding receiving surface 41. At the same time, the second holding surface 38 faces the second holding receiving surface 42 (see FIGS. 3B and 9). The first holding surface 37 and the first holding receiving surface 41 sandwich and press the first pressing portion 17a of the extra length portion 17, and the second holding surface 38 and the second holding receiving surface 42 The second pressing portion 17b surrounding the outside of the first pressing portion 17a in the extra length portion 17 is clamped and pressed. On the other hand, the holding body 35 is completely detached upward from the recess 40 at the insertion / removal position, and the bottom wall of the holding body 35 is positioned outward from the back surface molding surface 31 (see FIGS. 3A and 4). ).

(Demolding means)
As shown in FIGS. 3 (a) and 3 (b), the back-side mold 30 is provided with mold release means for pushing up the pillar garnish 10 and releasing it from the back-side mold 30. The demolding means includes a predetermined number (two in the embodiment) of protruding pins 50 and 50. Each extrusion pin 50, 50 extrudes the pillar garnish 10 obtained by shaping the base material 12 and shaping the skin 14 in the molding device 22 from the back-side mold 30. Further, the protruding pins 50, 50 separate the skin 14 set on the back mold 30 from the back molding surface 33 before the injection of the resin material P forming the base material 12 in the manufacturing process of the pillar garnish 10 described later. It will also work when you relax.

  Each of the protruding pins 50, 50 described above is slidably disposed on the backside mold 30 by a slide mechanism provided on the backside mold 30, and in the embodiment, the mold opening / closing direction of the front side mold 32 and the holding body. It moves in the same direction (vertical direction) as the moving direction of 35. This slide mechanism is formed on the second guide portion 53 that is formed so as to penetrate the back-side molding die 30 and open to the back-side molding surface 31, the ejector plate 55 disposed on the back side of the back-side molding die 30, and the base 34. And a second actuator 54 connected to the ejector plate 55. Each of the projecting pins 50, 50 is slidably disposed on the second guide portion 53 and has a lower end connected to the ejector plate 55. A plurality of (two in the embodiment) second actuators 54 are fixed to the base 34 in an inverted state with the second rod 54a facing downward with the ejector plate 55 interposed therebetween, and the tip of the second rod 54a is the ejector plate. It is connected to the end of 55. Accordingly, each of the protruding pins 50 and 50 is immersed in the back side molding die 30 from the back surface molding surface 31 by the operation of the second actuators 54 and 54, and the standby position where the tip 51 is flush with the back surface molding surface 31. It can move in the vertical direction between (see FIGS. 3 (b) and 7) and the protruding position (see FIGS. 3 (a) and 15 (b)) protruding from the back mold 30. . Further, when the skin 14 is slackened, each of the projecting pins 50 and 50 can be stopped at an intermediate projecting position (see FIG. 10) having a projecting height lower than the projecting height at the projecting position. Here, the movement distance from the standby position of each protrusion pin 50, 50 to the protrusion position is larger than the movement distance from the pressing position of the holding body 35 to the insertion / removal position. The intermediate protruding position is set according to the amount of slack given to the skin 14. Further, the number and position of the protrusion pins 50 are appropriately set based on the size and shape of the pillar garnish 10.

(Injection part)
As shown in FIGS. 3 and 12, the back-side mold 30 is provided with an injection nozzle (gate) 56 that opens at a required position on the back-surface molding surface 31. The base 34 is provided with a hot runner block 57 connected to a resin material supply unit (not shown), and the injection nozzle 56 is connected to the hot runner block 57. The injection nozzle 56 is disposed between the outer skin 14 accommodated in the cavity 23 and the back surface molding surface 31 of the back side molding die 30 in the cavity 23 defined by closing the back side molding die 30 and the front side molding die 32. In addition, the molten resin material P is injected via the hot runner block 57.

(Front side mold)
As shown in FIG. 3A and FIG. 11, an opening defining protrusion 58 protrudes from the surface molding surface 33 of the front mold 32 at a position where the product opening 10 a of the pillar garnish 10 is to be formed. . The opening defining protrusion 58 forms the product opening 10a. The contact surface 59 facing the back-side mold 30 at the opening defining protrusion 58 is narrower than the defining surface 36 because the defining surface 36 of the holding body 35 is formed wider than the opening 13 formed in the base material 12. (See FIG. 11). In the molding apparatus 22 of the embodiment, when the mold is closed, the opening defining protrusion 58 comes into contact with the center of the defining surface 36 of the holding body 35 at the pressing position, and the opening defining protrusion 58 , The outer edge portion of the defining surface 36 is exposed to the cavity 23 over the entire circumference of the opening defining protrusion 58.

  Therefore, in the molding apparatus 22 of the embodiment, when the back-side mold 30 and the front-side mold 32 are closed, the holding body 35 and the opening defining protrusion 58 come into contact with each other, so that the outer edge portion of the defining surface 36 of the holding body 35 Thus, the cavity 23 is defined (see FIGS. 11 and 12). That is, the cavity 23 is provided with a part of the defining surface 36 of the holding body 35 and a closed end by the surface molding surface 33 in a state where the molding device 22 is closed. In FIG. 11, it seems that the cavity 23 is separated into left and right by the opening defining protrusion 58, but the cavity 23 communicates with the back side and the near side of the opening defining protrusion 58.

(About the insertion part of the epidermis)
As shown in FIG. 4, the skin 14 is provided in advance with an insertion portion 16 through which the holding body 35 described above can be inserted in the previous step of forming the base material 12. As shown in FIGS. 4 and 7, the insertion part 16 allows the skin 14 to be set on the back-side mold 30 by inserting the holding body 35 disposed in the back-side mold 32 into the insertion part 16. In addition, the skin 14 can be set at an appropriate position with respect to the back surface molding surface 31 of the back side mold 30.

  The insertion portion 16 is formed with an insertion opening beyond the outer periphery of the maximum outer shape portion of the holding surfaces 37 and 38 of the holding body 35 in the extra length portion 17 of the above-described skin 14 so that the holding body 35 can be inserted into the skin 14. To do. Specifically, the insertion portion 16 of the embodiment is a skin opening that opens in the extra length portion 17 of the skin 14. Here, the insertion portion 16 has a rectangular shape that matches the outer shape of the support portion 39 provided on the bottom wall of the holding body 35, and the support portion 39 can be inserted without the extra length portion 17 being deformed. It is a big size. Here, in the holding body 35 of the embodiment, the outer edge of the first holding surface 37 and the outer edge of the defining surface 36 are aligned, and the outer peripheral wall forming the second holding surface 38 has the maximum outer shape. 16, a rectangular insertion opening into which the holding body 35 can be inserted is formed when the surrounding extra length portion 17 is deformed so as to expand.

(Skin supply device)
As shown in FIG. 5, the skin supply device 24 grips one of the sheet-like skins 14 stacked on the skin stocker 65 and conveys it to the molding device 22. The skin supply device 24 has a plurality of frames (two in FIG. 5) that can grip the terminal portion of the skin 14 on a frame 66 that can move between the skin stocker 65 and the upper side of the back mold 30 of the molding device 22 that has been opened. Only the display) is provided. Between the skin stocker 65 and the molding apparatus 22, a mounting table 70 on which the guide member 45 is temporarily mounted is provided. Further, the skin supply device 24 includes a guide member gripping portion 68 that can grip the insertion end 46 of the guide member 45. The guide member gripping portion 68 is configured to be movable up and down with respect to the frame 66. The frame 66 moves up and down in reverse with respect to the frame 66 in synchronization with the vertical movement of the frame 66. Even so, the guide member 45 can be held at the same height.

  The skin supply device 24 includes a plurality of skin support portions 69 (only two are shown in the drawing in FIG. 5) that come into contact with the skin 14 gripped by the skin gripping portions 67 and 67. The skin support portion 69 is located near the insertion portion 16 formed in the skin 14 from the side opposite to the insertion direction of the insertion portion guide member 45 and the holding body 35 (upward in the embodiment) with respect to the skin 14. It is provided to touch. That is, each skin support portion 69 abuts on the skin 14, so that when the guide member 45 is inserted into the insertion portion 16 and the skin 14 is set on the guide member 45, the holding body 35 is held through the insertion opening. When setting between 35 and the back side shaping | molding die 30, it arrange | positions that the outer skin 14 displaces to the opposite side (upward in an Example) to an insertion direction. The skin support portion 69 is changed in holding position and number of arrangements based on the opening shape and opening size of the insertion portion 16. Further, the skin support portion 69 is preferably arranged so as to be spaced apart at appropriate intervals around the entire circumference of the insertion portion 16 so as to support a line parallel to the line connecting the outer edges of the insertion portion 16. In the embodiment, by arranging the plurality of skin support portions 69 in the vicinity of the four sides on the outer edge of the insertion portion 16 having a rectangular shape, the entire periphery of the insertion portion 16 is evenly supported. ing.

(Guide material)
As shown in FIGS. 6 to 8, when the outer skin 14 is set in the cavity 23, the holding surface 35 of the holding body 35 is inserted into the insertion portion 16 provided in advance in the outer skin 14. The guide member 45 is configured to be detachably set. The guide member 45 is configured such that a guide surface 48 provided on the outer periphery of the guide member 45 expands outward from the insertion end 46 side of the skin 14 toward the delivery end 47 side to the holding body 35. Here, in the embodiment, the delivery end 47 of the guide member 45 has the same contour shape as the defining surface 36 of the holding body 35. That is, since the regulation surface 36 of the holding body 35 of the embodiment is rectangular, the delivery end 47 of the guide member 45 is rectangular, and the guide member 45 has a substantially quadrangular pyramid shape. Such a guide member 45 is inserted into the insertion portion 16 of the skin 14 from the insertion end 46 side, and the guide surface 48 comes into contact with the skin portion forming the insertion portion 16 and deforms to expand the insertion portion 16. Thus, an insertion opening through which the holding body 35 can pass is defined. That is, the guide member 45 is inserted into the insertion portion 16 until the insertion portion 16 is positioned at the delivery end 47, so that the insertion portion 16 has the same opening shape as the outer edge contour shape of the defining surface 36 of the holding body 35. The holding body 35 can be passed through the insertion portion 16 by expanding to the insertion opening. The guide member 45 is inserted into the insertion end 46 by a guide member gripping portion 68 provided in the skin supply device 24, is attached to and detached from the regulation surface 36 of the holding body 35, and is placed on the mounting table 70. The

(Production method)
Next, a method for manufacturing the pillar garnish 10 using the molding apparatus 22 and the supply apparatus 24 configured as described above will be described with reference to FIGS.

(Set the skin for the guide member)
First, in the embodiment, each skin gripping portion 67, 67 of the skin supply device 24 grips and removes one skin 14 from the skin stocker 65, and the guide member 45 placed on the placing table 70 is attached to the guide member 45. The epidermis 14 is set. That is, after grasping and taking out one skin 14 from the skin stocker 65, the skin 14 is moved above the guide member 45 placed at a specified position of the placement table 70, and the insertion provided in the skin 14 is performed. The skin 14 is positioned so that the portion 16 is positioned immediately above the guide member 45 (indicated by a two-dot chain line in FIG. 6). Next, the skin supply device 24 is moved downward, the guide member 45 is inserted into the insertion portion 16 provided in the skin 14 from the insertion end 46 side, and the skin 14 is set on the guide member 45. Here, the height position at which the skin 14 is stopped is a position where the extra length portion 17 appropriately contacts the guide surface 48 of the guide member 45. At this time, since each skin support part 69 supports the periphery of the insertion part 16 in the skin 14 from above, the skin 14 is restricted from being displaced upward. Then, the insertion end 46 of the guide member 45 is gripped by the guide member gripping portion 68 disposed in the skin supply device 24.

(Set of guide members for the holder)
When the setting of the skin 14 with respect to the guide member 45 is completed, the skin supply device 24 is moved above the back-side mold 30 in the mold-opening molding device 22, and the guide member 45 is held on the back-side mold 30. Stop at a position directly above the body 35. Then, as shown in FIG. 7, while the holding body 35 disposed on the back mold 30 is moved to the insertion / removal position, the skin supply device 24 is moved downward to define the specified surface 36 of the holding body 35. Then, the guide member 45 on which the skin 14 is set is set.

(Set of skin for backside mold)
When the setting of the guide member 45 with respect to the regulation surface 36 of the holding body 35 is completed, the skin supply device 24 is moved further closer to the back side mold 30 as shown in FIG. At this time, since the guide surface 48 of the guide member 45 is expanded toward the outer edge of the holding body 35 from the insertion end 46 side toward the delivery end 47, the insertion portion 16 is moved along with the downward movement of the skin 14. The elastic deformation around is gradually increased, and the insertion portion 16 is expanded. When the skin 14 moves downward to the position of the delivery end 47 of the guide member 45, the insertion portion 16 becomes the same rectangular insertion opening as the outer edge contour shape of the defining surface 36 of the holding body 35. As a result, by moving the skin 14 further closer to the back-side mold 30, the second holding surface 38 of the holding body 35 passes through the insertion portion 16, and the skin 14 is moved from the second holding surface 38 of the holding body 35. Also moves to the back mold 30 side. Since each skin support portion 69 supports the periphery of the insertion portion 16 in the skin 14 from above, when the second holding surface 38 of the guide member 45 and the holding body 35 passes through the insertion portion 16, the skin 14 Is displaced upward. And if the 2nd holding surface 38 of the holding body 35 passes completely through the insertion part 16, the circumference | surroundings of the insertion part 16 which was elastically deformed will return to the original shape. When the skin supply device 24 is moved downward with the guide member 45 set on the holding body 35, the guide member gripping portion 68 is moved upward with respect to the frame 66 and inserted as described above. The guide member 45 is held on the holding body 35 stopped at the detached position.

(Holding the epidermis by the holding body)
When the second holding surface 38 of the holding body 35 passes through the insertion portion 16 and the skin 14 is positioned between the first holding surface 37 of the holding body 35 and the back mold 30, as shown in FIG. The actuator 44 is operated to move the holding body 35 that has been in the insertion / removal position toward the pressing position. At this time, the first holding surface 37, which is the bottom wall of the holding body 35, comes into contact with the first pressing portion 17 a of the extra length portion 17, so that the extra length portion 17 of the skin 14 is moved with the movement of the holding body 35. Is pushed into the recess 40. Note that when the holding body 35 is moved toward the pressing position, the gripping of the skin 14 by the skin gripping portion 67 of the skin supply device 24 is not restricted from being pushed into the recess 40 by the extra length portion 17 of the skin 14. Release at appropriate timing. In addition, when the holding body 35 is moved toward the pressing position, the guide member 45 is continuously held by the guide member holding portion 68, and the holding body 35 that has started moving to the pressing position is separated from the guide member 45.

  Therefore, when the holding body 35 is fitted in the recess 40 to be in the pressing position, the first pressing portion 17a of the extra length portion 17 is held by the first holding surface 37 of the holding body 35 and the first holding receiving surface 41 of the recess 40. It is pressed in the moving direction (vertical direction) of the body 35. Further, the second pressing portion 17 b of the extra length portion 17 is pressed by the second holding surface 38 of the holding body 35 and the second holding receiving surface 42 of the recess 40 in a direction intersecting the moving direction of the holding body 35. That is, the extra length portion 17 is sandwiched and pressed between two portions having different directions, and is pressed in two directions intersecting substantially at right angles in the embodiment. Then, the outer edge portion (indicated by a one-dot chain line in FIG. 4) of the extra length portion 17 is aligned with the holding position of the skin 14 by the holding body 35. Thus, since the holding body 35 is formed wider than the opening 13 of the base material 12, the outer skin 14 is pressed by the holding body 35 on the back-side mold 30 side at a holding position that surrounds a range wider than the size of the opening 13. It is attached. Further, the skin 14 is pressed against the back-side mold 30 by the holding body 35 at a position away from the closed end positioned around the opening defining protrusion 58 that defines the opening 13 in the cavity 23 (FIG. 11). On the other hand, the portion other than the extra length portion 17 pressed by the holding body 35 in the outer skin 14 is placed on the back surface molding surface 31 of the back side molding die 30.

(Provides skin slack)
After the holding body 35 is moved to the pressing position and the skin 14 is pressed at a holding position that surrounds a range wider than the size of the opening 13 formed in the base material 12, the second actuator 54 is operated as shown in FIG. Thus, each of the protruding pins 50, 50 is moved to the intermediate protruding position, and is protruded from the back surface molding surface 31 of the back side molding die 30. As a result, the skin 14 placed on the back surface molding surface 31 of the back side molding die 30 is pushed up from the back surface molding surface 31 around the portions pressed by the protruding pins 50 and 50, and is appropriately slackened. To do. That is, the outer skin 14 is brought into a state where the terminal side is drawn to the peripheral side of the back surface molding surface 31 and is lifted from the back surface molding surface 31.

(Mold closing)
Next, as shown in FIG. 11, with the outer skin 14 being loosened by the protruding pins 50, 50, the front side molding die 32 is moved close to the back side molding die 30, and the molding device 22 is closed. As a result, the contact surface 59 of the opening defining protrusion 58 of the front mold 32 comes into contact with the center of the defining surface 36 of the holding body 35 formed wider than the opening 13 of the base material 12, and is in the pressing position. The cavity 23 is defined so as to cover the outer edge portion of the defining surface 36 of the holding body 35. Here, in the embodiment, the closed end defining the opening 13 in the cavity 23 and the holding position of the skin 14 are equally spaced over the entire circumference of the opening 13. Further, the end of the skin 14 is sandwiched between the back-side mold 30 and the front-side mold 32, and the skin 14 is set in the cavity 23 in a slack state. The protruding pins 50 and 50 are moved to the standby position at an appropriate timing so as not to interfere with the surface molding surface 33 of the front-side molding die 32 when the molding device 22 is closed. Thereby, the outer skin 14 is held so that the extra length portion 17 and the terminal are not exposed to the cavity 23, and the other molded product components are accommodated in the cavity 23 in a slack state so as to have a deformation allowance.

(Injection of resin material)
When the setting of the skin 14 and the closing of the mold of the molding apparatus 22 are completed, as shown in FIG. 12, the resin material P forming the base material 12 is inserted into the cavity 23 of the skin 14 through the injection nozzle 56 ( It is injected between the molded product component) and the back molding surface 31 of the back mold 30. At this time, as shown in FIGS. 13A to 13C, the resin material P injected from the injection nozzle 56 spreads into the cavity 23 while pushing the skin 14. At this time, as shown in FIG. 13 (b), the skin 14 in a slack state is pushed by the resin material P, so that the skin 14 is held by the holding body 35 toward the closed end of the cavity 23 described above. Deforms to swell. Then, as shown in FIG. 13C, the skin 14 is pressed against the defining surface 36 of the holding body 35 that defines the closed end and the surface molding surface 33 of the front side mold 32. In other words, the resin material P is used to deform the skin 14 toward the inside of the region surrounded by the holding position of the skin 14 by the holding body 35, so that the regulation surface 36 of the holding body 35 and the surface molding surface of the front-side molding die 32. The skin 14 is pressed against 33.

  Then, the injection of a predetermined amount of the resin material P into the cavity 23 is completed, and the molding of the base material 12 is completed when the predetermined curing time has elapsed and the resin material P is cured. In addition, the skin 14 is shaped as the base material 12 is molded, and the skin 14 is arranged on the front side of the base material 12, and the skin 14 is arranged on the back side of the opening edge of the opening 13 of the base material 12. That is, the skin 14 is wound around the back side of the opening edge of the opening 13 formed in the covering portion 14a bonded to the surface 12a of the base 12 and the base 12 by injecting the resin material P constituting the base 12. The winding portion 14b is shaped. In addition, the holding position of the skin 14 by the holding body 35 becomes the end edge of the winding portion 14b (see FIG. 14). Then, after the molding of the base material 12 is completed, as shown in FIG. 14, the front side molding die 32 is separated from the back side molding die 30 and the molding device 22 is opened.

  Next, as shown in FIG. 15 (a), the second actuator 54 is actuated to cause the protruding pins 50 and 50 to protrude from the back surface molding surface 31, and the obtained pillar garnish 10 is removed from the back side molding die 30. Mold. In the embodiment, the first actuator 44 is operated in conjunction with the operation of the second actuator 54 to move the holding body 35 from the pressing position to the insertion / removal position. At this time, since the moving distance from the standby position of each protrusion pin 50, 50 to the protruding position is longer than the moving distance from the pressing position of the holding body 35 to the insertion / removal position, the holding body 35 stops at the insertion / removal position. After that, the protruding pins 50, 50 move upward. Accordingly, when the pillar garnish 10 moves to the protruding position while the holding body 35 is stopped at the insertion / removal position, the insertion portion 16 is expanded by the holding body 35 and the passage of the holding body 35 is permitted. Is separated from the holding body 35 (FIG. 15B).

(Separation of surplus part)
As shown in FIG. 16, in the pillar garnish 10 demolded from the molding apparatus 22, a portion of the skin 14 that is not joined to the base material 12 is an unnecessary redundant portion as a product. Therefore, after removing the pillar garnish 10 from the molding device 22, the skin 14 is cut along the edge of the winding portion 14b with a cutting tool such as a cutter or scissors to remove the extra length portion 17 that becomes an extra portion. . Moreover, the manufacturing process of the pillar garnish 10 is completed by cut | disconnecting the outer skin 14 along the outer edge part of the pillar garnish 10, and removing an excess part.

  Therefore, according to the method of manufacturing a molded product using the molding apparatus 22 of the embodiment, the holding body 35 and the back-side molding die 30 are held at a holding position that surrounds a range wider than the opening 13 opened in the base material 12. The resin material P that forms the base material 12 is injected between the molded product constituent part of the skin 14 accommodated in the cavity 23 and the back surface molding surface 31 of the back side molding die 30 while being pressed by the recess 40. Thereby, the molded product component portion of the skin 14 pushed by the resin material P injected into the cavity 23 can be deformed inside the region surrounded by the holding position of the skin 14 by the holding body 35. By forming the material 12, the skin 14 can be shaped in a state where it is wound from the front side of the base material 12 to the back side of the opening edge through the opening 13 of the base material 12. Therefore, when the base material 12 is molded, not only the skin 14 is arranged on the front side of the base material 12 but also the skin 14 can be shaped so as to be wound from the front side of the base material 12 to the back side of the opening edge of the opening 13. After forming the base material 12, the work of winding the outer skin 14 to the back side of the base material 12 through the opening 13 and joining it becomes unnecessary, and the pillar garnish 10 can be manufactured efficiently.

  In the manufacturing method of the embodiment, the base material 12 is molded in a state where the skin 14 is pressed against the regulation surface 36 of the holding body 35 that defines the closed end of the cavity 23 and the surface molding surface 33 of the front side molding die 32. As a result, the product opening 10a of the pillar garnish 10 can be molded beautifully. Moreover, since the shape of the opening 13 of the base material 12 is prescribed | regulated through the outer skin 14, this opening 13 can also be shape | molded neatly. Since the shaping of the skin 14 is not performed manually, the shape of the skin 14 in each of the obtained pillar garnishes 10 is constant, and the quality of the pillar garnish 10 can be stabilized.

  Further, in the manufacturing method of the embodiment, the first holding portion 37 and the first holding receiving surface 41 are used to place the first holding portion 35 by fitting the holding body 35 into the concave portion 40 provided in the back-side mold 30. The second holding surface 38 and the second holding receiving surface 42 are used to sandwich and press the second pressing portion 17b in a direction intersecting the moving direction of the holding body 35. be able to. Therefore, the skin 14 can be reliably held against the back mold 30 by pressing the first pressing portion 17a and the second pressing portion 17b of the extra length portion 17 in two different directions. Accordingly, when the skin 14 is loosened by the protruding pin 50 or when the base material 12 is molded by the resin material P injected into the cavity 23, the skin 14 is prevented from being displaced. Can be shaped.

  In the manufacturing method of the embodiment, the guide member 45 that expands from the insertion end 46 side toward the delivery end 47 with the holding body 35 is set on the holding body 35, and the holding body 35 is passed through the insertion portion 16. By inserting the guide member 45 in front, the insertion portion 16 is formed as an insertion opening through which the holding body 35 can be inserted. Therefore, the holding body 35 can be easily passed through the insertion portion 16, and when the skin 14 is set on the back-side mold 30, the skin 14 can be prevented from being caught by the holding body 35 and deformed or torn. Further, since the holding member 35 can be easily passed through the insertion part 16 by the guide member 45, the time for setting the skin 14 in the cavity 23 is shortened, and the manufacturing cost can be further reduced.

  Further, in the manufacturing method of the example, the extruding pins 50 and 50 for releasing the obtained pillar garnish 10 from the back side mold 30 are projected before the resin material P forming the base material 12 is injected, and the skin 14 is The outer skin 14 is made to be deformed by being separated from the back-side mold 30 and being deformed when the resin material P is injected. As a result, when the resin material P is injected, the skin 14 accommodated in the cavity 23 tends to swell toward the closed end side defining the opening 13, and the surface 35 of the holding body 35 and the surface molding surface 33 of the front side mold 32 are formed. The skin 14 can be easily pressed. Accordingly, since the skin 14 can be shaped without difficulty, it is difficult for deformation failure of the skin 14 to occur, and it is possible to prevent occurrence of shape defects in the base material 12 and the skin 14 of the obtained pillar garnish 10. . Moreover, even if the skin 14 is formed from a material that is difficult to stretch, the skin 14 can be appropriately shaped by loosening the skin 14.

  Further, as shown in FIG. 17, the skin 14 may be provided with a fragile portion 19 along the holding position of the skin 14 in advance. The fragile portion 19 is made thin by providing a V-shaped groove on the skin 14 along the holding position. Thereby, after the pillar garnish 10 is molded by the molding device 22, the fragile portion 19 is easily cut by appropriately pulling the surplus portion such as the surplus length portion 17 and the like without using a cutting tool such as a cutter or scissors. It is possible to separate the surplus part. Moreover, since the weak part 19 is easy to be cut | disconnected by pulling the surplus length part 17, it can also prevent that the entrainment part 14b of the skin 14 joined to the base material 12 peels from this base material 12. FIG. The fragile portion 19 is not limited to the thinned portion, and a cut is formed along the holding position of the skin 14 or a large number of small holes are formed in a perforated shape at a required interval along the holding position of the skin 14. The thing etc. which were done may be sufficient.

(Change example)
The present invention is not limited to the configuration of the embodiment described above, and can be modified as follows.
(1) When the skin 14 is pressed by the holding body 35, for example, the terminal portion of the skin 14 is held by a clip or the like provided on the skin gripping portion 67 or a molding die, and tension is applied to the skin 14 Good. Thereby, wrinkles can be made difficult to occur on the skin 14.
(2) The timing for forming the deformation allowance of the skin 14 by the demolding means 50 is before or after the resin material P is injected, either before or after the holding body 35 presses the extra length portion 17 of the skin 14. Well, it may be before or after mold closing. Further, when forming the deformation allowance of the skin 14 by the demolding means 50, even if both the extra length portion 17 and the terminal portion of the epidermis 14 are held, either the extra length portion 17 or the terminal portion of the epidermis 14 is retained. Even if one is held, it is not necessary to hold both the extra length portion 17 and the terminal portion of the skin 14. Note that the demolding means 50 may be retracted in conjunction with the mold closing in a state where the skin 14 supported by the demolding means 50 is sandwiched between the front side mold 32.
(3) The process of making the deformation allowance by loosening the skin 14 before closing the mold may be omitted.
(4) The holding body 35 may have a configuration independent of the back side mold 30. For example, as shown in FIG. 18, the outer skin 14 is set so as to face the back surface molding surface 31 of the back side mold 30 (FIG. 18A), and the holding body 35 is fitted in the recess 40 of the back side mold 30. The extra length of the skin 14 is pressed by the holder 35 and the recess 40 (FIG. 18B). Next, as in the embodiment, after closing the mold, the resin material P is injected between the skin 14 and the back surface molding surface 31 of the back side mold 30 to mold the base material 12 and shape the skin 14. . Then, after the formation of the substrate 12 is completed, the pillar garnish 10 is protruded by the protrusion pins 50 and 50, whereby the holding body 35 between the substrate 12 and the skin 14 is detached from the recess 40 (FIG. 18C). ) By cutting the extra length portion 17 connected to the winding portion 14b of the outer skin 14 in the subsequent step, the extra length portion 17 and the holding body 35 can be separated from the pillar garnish 10 simultaneously. Thus, since it is not necessary to set the skin beyond the holding body, it is not necessary to form the insertion portion 16 for allowing the holding body 35 to pass through the skin 14. In this case, the holding body 35 is detachably attached to the front side molding die 32, and the extra length portion 17 of the skin 14 is pressed by the holding body 35 attached to the front side molding die 32 when the mold is closed, and held when the mold is opened. The body 35 may be removed from the front mold 32.
(5) By adjusting the holding position of the epidermis 14 by the holding body 35, the length of the winding portion 14b to be wound around the back side of the substrate 12 can be changed. In addition, by aligning a part of the holding position of the skin 14 by the holding body 35 with the opening end of the base material 12 (the closed end of the cavity 23), the skin 14 is only on the end surface of the opening 13 in a partial range of the opening edge. Can be arranged.
(6) In the embodiment, the holding surface of the holding body 35 is the bottom wall and the outer peripheral wall, and the holding receiving surface is the bottom wall and the inner peripheral wall of the recess 40, so that the skin 14 is in two directions with different pressing directions. However, the surplus length portion 17 may be pressed only by the bottom wall of the holding body 35 and the bottom wall of the recess 40 (the moving direction of the holding body 35). The extra length portion 17 may be pressed only by the outer peripheral wall of the body 35 and the inner peripheral wall of the recess 40 (direction intersecting the moving direction of the holding body 35).
(7) The guide member may be disposed on the holding body 35. Such a guide member includes a plurality of guide pieces pivotally supported by a support shaft at a portion facing the surface molding surface 33 of the holding body 35, and each guide piece stands upright at an angle from the holding body. The posture is changed to the position and the storage position lying down on the holding body. Thereby, the insertion part 16 can be expanded by setting the skin 14 to the guide member in which each guide piece is at the guide position. Each guide piece of the guide member is displaced from the guide position to the retracted position by being pushed by the front side mold 32 when the mold is closed, and when the mold is closed, the guide surface 36 of the holding body 35 is configured. To come.
(8) In the guide member 45, the size of the delivery end 47 may be larger than the outer shape of the defining surface 36 of the holding body 35. The contour shape of the delivery end 47 of the guide member 45 may be a shape that does not resemble the contour shape of the defining surface 36 of the holding body 35.
(9) A mode in which the insertion portion 16 of the skin 14 is constituted by an opening formed in the skin 14 and a slit extending from the opening edge of the opening to the extra length portion 17, and the periphery of the opening is separated into a plurality of parts. It may be. Such an insertion portion 16 is deformed so that when the holding body 35 or the guide member 45 comes into contact, the periphery of the opening (part of the extra length portion 17) is divided into a plurality of parts, thereby being deformed. And the insertion opening in which the insertion of the guide member 45 is allowed can be defined. Further, the insertion portion 16 may be configured by only the slit provided in the surplus length portion 17 so that the surplus length portion 17 is separated into a plurality. Such an insertion part 16 is deformed so that when the holding body 35 or the guide member 45 comes into contact, a part of the extra length portion 17 is separated into a plurality of parts, so that the holding body 35 and the guide member 45 are deformed. An insertion opening that is allowed to be inserted can be defined.
(10) The mold releasing means may be configured to blow air out of the back surface molding surface 31 from a plurality of blowing holes formed at required positions on the back surface molding surface 31 of the back side molding die 30. Such a demolding means can lift and loosen the skin 14 set on the back mold 30 by using the pressure of the air blown from each blow hole.
(11) When the outer skin 14 is loosened by the protruding pin 50, the outer skin 14 is pushed up and loosened so as to protrude higher than the position of the surface molding surface 33 that forms the upper surface of the cavity 23 when the molding device 22 is closed. , It may be set in the cavity 23. Since the skin 14 thus loosened is pushed from above by the surface molding surface 33 when the molding device 22 is closed, the skin 14 is held by the holding body 35 and the recess 40 before the resin material P is injected. It deforms so as to swell from the position toward the closed end. Therefore, when the resin material P is injected between the skin 14 and the back-side mold 30, the skin 14 pressed by the resin material P can be easily deformed to the closed end side.
(12) The direction in which the obtained pillar garnish 10 is removed from the back side mold 30 by the mold release means 50 in a state where the extra length portion 17 of the skin 14 is held by the holding body 35 after the molding of the base material 14 is completed. The skin 14 may be cut along the holding position of the skin 14 by the holding body 35. If it does in this way, demolding of the pillar garnish 10 from the back side shaping | molding die 30 and the cutting | disconnection of the extra length part 17 used as an excess part can be performed simultaneously, and manufacturing efficiency can further be improved. In this case, by providing the weakened portion 18 along the holding position of the skin 14 by the holding body 35, the skin 14 can be easily cut along the holding position.
(13) The molding device 22 is not limited to the one in which the back-side mold 30 and the front-side mold 32 are opened in the vertical direction, and the back-side molding surface 31 and the surface-molding surface 33 are arranged in the vertical direction so as to be in the horizontal direction. Alternatively, the mold may be opened, or the back molding surface 31 and the front molding surface 33 may be inclined and opened in an oblique direction. Further, the molding device 22 may be one in which the back-side mold 30 and the front-side mold 32 are disposed upside down.
(14) The molded article manufactured by the manufacturing method of the present application is not limited to the pillar garnish 10 illustrated in the embodiment, and the skin 14 disposed on the front side of the base 12 is disposed through the opening 13 of the base 12. All the molded articles with a skin wound on the back side of the substrate 12 are targeted. For example, a vehicle interior member such as a lid of a glove box, a door panel and an instrument panel, furniture, and the like are targeted.

DESCRIPTION OF SYMBOLS 10 Pillar garnish (molded article), 12 base material, 13 opening, 14 skin, 16 insertion part 17 extra length part, 23 cavity, 30 back side shaping | molding die, 32 front side shaping | molding die, 35 holding body 45 guide member, 46 insertion end, 47 Delivery end, 50 Extrusion pin (demolding means)
P resin material

Claims (4)

A method for producing a molded article in which a skin is disposed over the front side of a base material and the opening edge back side of the opening in the base material,
A surplus portion extending inward from a holding position that surrounds a wider area than the opening in the outer skin is pressed by a holder on the back molding die side for molding the back side of the molded product, and the outer skin is set in a cavity. ,
Injecting a resin material forming the base material between the backside mold and the skin accommodated in the cavity,
The base material is formed on the front side of the base material by molding the base material in a state where the base material is deformed by the resin material toward the inner side of the region surrounded by the holding position. A method for producing a molded product, characterized in that a skin is arranged on the back side of the opening edge of the opening to obtain a molded product in which the substrate and the skin are joined. By pressing the extra length part of the skin by the holding body, the skin is set so as to face the cavity from the back-side mold side away from the closed end that defines the opening in the cavity,
The outer skin is deformed by the resin material toward the closed end of the cavity extending inside the region surrounded by the holding position, and the holding body defining the closed end and the front side of the molded product in the cavity are molded. The method for producing a molded product according to claim 1, wherein the substrate is molded in a state in which the skin is pressed against the front side mold. An insertion opening is defined by inserting a guide member provided on the holding body into an insertion portion formed in the extra length portion and expanding the insertion portion, and the insertion opening is defined in the state of defining the insertion opening. After placing the outer skin between the holding body and the back side molding die through the holding body spaced apart from the back side molding die, sandwiching the extra length portion between the holding body and the back side molding die, To set
The method for manufacturing a molded product according to claim 1 or 2, wherein the guide member is configured to expand outwardly from the insertion end side of the insertion portion of the skin to the delivery end side to the holding body.   By pressing the epidermis set in the cavity before injecting the resin material by a mold releasing means for extruding the obtained molded product and releasing from the back side mold, the epidermis is loosened. The manufacturing method of the molded article as described in any one of Claims 1-3.

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