JP3369358B2 - Mold for partially laminated molded products and manufacturing equipment - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION This invention is a surface portion on the skin surface material coated portion laminated molded article of a mold, and relates to a manufacturing apparatus, a door trim, and automotive parts such as instrument panel, the chair back It can be used when manufacturing furniture parts, etc.

[0002]

BACKGROUND ART As automobile interior parts such as door trims and instrument panels, laminated molded products whose surfaces are covered with a flexible skin material are used. According to such a laminated molded product, since the surface is covered with the flexible skin material, it is possible to give a good feel when touched by hand, and also to use a woven fabric or the like as the skin material. For example, decorativeness can be imparted. On the other hand, as one type of laminated molded product, there is a partially laminated molded product in which the skin surface material is partially integrated. In such a partially laminated molded product, even if an expensive surface material is used, the use of the surface material can be partially used, which can be an effective means of cost reduction. Therefore, establishment of mass production technology is desired. .

Conventionally, a partially laminated molded article is manufactured by the following method. A) Adopting a vertical injection molding machine that moves the moving mold up and down with respect to the fixed mold, place the skin surface material on the lower mold of these molds, and simply use gravity to cover the skin surface. A manufacturing method in which a material is fixed, the mold is closed in this state, and molten resin is filled into the mold. B) Provide a large number of pins on the part where the skin surface material of the mold is fixed,
A manufacturing method in which the skin surface material is fixed by piercing the skin surface material with these pins, the mold is closed in this state, and the molten resin is filled in the mold. (Japanese Patent Publication No. 3-27910). C) In addition to a pair of molds that open and close, a slide core that forms a part of the mold surface, and a third core that is interposed between the pair of molds.
The mold surface of the slide core or the third mold is covered with the surface material, and a part of the mold surface of the entire mold is covered with the surface material. Manufacturing method of filling molten resin inside (JP-A-63-91212,91213).

[0004]

The above manufacturing methods A) to C) have the following problems a) to c), respectively. a) Since the skin surface material is fixed only by gravity, there is a problem that the horizontal surface molding machine cannot perform molding, and even in the vertical molding machine, the skin surface material may be displaced from the predetermined position during injection of the molten resin. is there. b) Since the skin surface material is fixed with the pins arranged intermittently, the amount of expansion of the skin surface material differs between the part near the pin and the part away from the pin, and wrinkles and distortions are generated in the skin surface material. There is a problem that it will occur. In order to solve this problem, it is conceivable to adopt a structure in which the pin is pulled into the mold surface after the molten resin is started to be filled.
There is a problem that the structure of the mold becomes complicated. Furthermore, the end face of the skin material is exposed only with the structure that is fixed with pins,
If the exposed end surface of the skin material is disturbed, the appearance of the molded product will be impaired.Therefore, it is necessary to adopt a structure that hides the end surface of the skin material, and if such a structure is used together, the mold becomes more complicated. There's a problem. c) In order to prevent wrinkles from forming on the skin material, it is necessary to extend the end of the skin material to the outside of the mold and apply a tension with a spring that engages this end. Is
There is an unnecessary part that protrudes outside the mold, post-processing is required to cut this unnecessary part, and the end of the cut skin surface material cannot be end-processed, so the appearance of the molded product is impaired. There is a problem. In any of the methods described above, since the surface material is fixed to the mold surface for molding the surface side of the molded product, the treatment for such fixing is performed on the surface of the surface material, It causes a bad influence on the appearance of the molded product and does not directly contribute to the improvement of the mass production technology of the partially laminated molded product.

An object of the present invention is to form a partially laminated layer having a good appearance.
Partially laminated molded product that will surely obtain a shaped productMoney
To provide a mold and a manufacturing apparatus.

[0006]

[0007]

A mold for a partially laminated molded article of the present invention is a mold for a partially laminated molded article for molding a partially laminated molded article in which a skin surface material is integrated at a predetermined position on the surface. An opening for injection of the molten resin is formed in the back side mold surface for molding the back side of the molded product, and temporary fixing means for temporarily fixing the skin material is provided at a position where the injection port is closed. The means includes a vacuum suction port provided on the back side mold surface, a shaft portion that is capable of advancing and retracting inside the vacuum suction port, and a valve provided at the tip of the shaft portion to open and close the vacuum suction port. It is characterized by comprising a body and an urging means for urging the shaft portion in a direction of opening the valve body. more than
As a synthetic resin for forming a molded article,
Len, polypropylene, polystyrene, ABS, polycarbonate
Thermoplastic resin such as carbonate and polyamide, and
Talc, calcium carbonate, my
It is possible to use those with added filler such as mosquito and glass fiber,
In particular, polypropylene (even if it contains the aforementioned fillers
Good. ) Is preferably adopted. Also, with the surface material
Woven cloth, non-woven cloth, thermoplastic resin surface material, heat
A plastic resin foam sheet and patterns etc. were printed
Single-layer surface materials such as films, as well as thermoplastic elastomers
A thermoplastic resin or a thermoplastic resin
-Layered surface material lined with a lining material made of a foamed resin
Etc. can be adopted.

[0008] partial laminate molded article manufacturing apparatus of the present invention is a partial laminate molded article manufacturing apparatus skin surface material forming the integrated part laminated molded article at a predetermined location of the surface, the mold
And a conveying / mounting means for transporting the skin surface material arranged outside the mold to the inside of the mold and mounting the back side of the molded product on the back side mold surface , wherein the mold is
The molten resin is injected into the mold surface of the back side that molds the back side of the product.
And the surface material at the position where the injection port is closed.
And a temporary fixing means for temporarily fixing the
The vacuum suction port provided on the back side mold surface and this vacuum suction
The shaft part that can be moved back and forth inside the mouth and the tip of this shaft part
A valve body provided at an end for opening and closing the vacuum suction port;
Urging means for urging the shaft portion in the direction of opening the valve body.
It is characterized by having. In the above, the transport and mounting means includes a gripper for gripping the opposite edges of the skin surface member state, and are not, and a positioning pin extending toward the back mold surface, before Symbol back mold surface, the It is preferable to provide a positioning hole into which the positioning pin of the carrying / mounting means is inserted. As the molding device, an injection molding machine and an injection compression molding machine can be adopted, and in particular, an injection compression molding machine equipped with a compression mechanism capable of controlling the compression force of the mold in multiple stages is preferably used. Here, as the compression mechanism, the one provided inside the mold or the like, the one incorporated in the injection molding machine, and the moving side die plate and the mold provided in the mold clamping device of the injection molding machine It is possible to use the one that is interposed between the two.

In the present invention as described above, the following molding procedure can be adopted. The die on the moving side is moved to open the die, and the skin material is attached to a predetermined position in the die on the fixed side having the injection port for the molten resin. At this time, if the mold is provided with a temporary fixing means such as a vacuum suction port that sucks and temporarily fixes the skin material, the work of mounting the skin material can be a simple operation, and the mounting work can be automated. Becomes From the completely closed position to the compression allowance (for example, 1 to 50 m
Move the mold on the moving side to the position before m), and block the rear of the mold on the moving side so as not to open the mold. The injection device is driven to fill the molten resin into the mold, and by filling the molten resin, the skin surface material is moved from the fixed side mold to the moving side mold and is moved by the internal pressure of the molten resin. Press on the mold surface of the side mold. A predetermined time (for example, 0.1 to 0.1) from the start of filling the molten resin.
After about 1.0 second), the internal pressure of the molten resin becomes sufficiently large, and the skin surface material is pressed against the molten resin and does not fall by gravity without using the temporary fixing means.
The operation of the temporary fixing means is stopped. When the temporary fixing means for sucking the skin surface material with the vacuum suction port is adopted, if the suction force of the temporary fixing means is sufficiently smaller than the internal pressure of the molten resin, the internal pressure of the molten resin is Since the skin material is moved against the suction force, the operation of the temporary fixing means may be continued as it is. Immediately before or after the completion of filling, the mold on the moving side is clamped and moved to perform a compression process, and the resin inside is spread by the compressive force of the mold clamping to fill the mold. The resin is cooled while maintaining the above-described compressive force, and after the resin is sufficiently cooled and solidified, the mold is opened and the molded product is taken out.

[0010]

In the present invention as described above, the skin surface material temporarily fixed to the mold surface having the injection port is
It moves to the mold surface opposite to the mold surface. Therefore, it becomes possible to temporarily fix the back surface side of the skin surface material, and the processing for temporary fixing is performed on the back surface side of the skin surface material or the molded product. Even if you process
It does not adversely affect the appearance of the molded product. For example, even if a double-sided adhesive tape is attached to the back surface and the surface material is temporarily fixed to the mold surface, the double-sided adhesive tape is not exposed on the surface of the surface material and does not adversely affect the appearance of the molded product. . Further, the surface of the skin material is formed with the molten resin along the mold surface for molding the front side of the molded product and forms the same surface as the surface of the other part of the molded product, so that the end surface of the skin material may be exposed. Also from this point, the appearance of the molded product is not adversely affected. Further, the skin surface material is temporarily fixed to the mold surface with a double-sided adhesive tape or the like until it is filled with the molten resin, and after being filled with the molten resin, it is fixed to the mold surface by the internal pressure of the molten resin. Since the position of the skin material does not shift during molding and it does not need to protrude outside the mold, there is no need for post-processing to cut unnecessary parts outside the mold, which allows the above-mentioned purpose to be achieved. To be achieved.

[0011]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 shows a main part of an injection compression molding machine 1 which is a device for manufacturing a partially laminated molded product according to this embodiment. This injection compression molding machine 1 is an injection device for injecting a molten resin 2.
10, a mold 20 for molding, and a carrier / mounting device 30 as carrier / mounting means for mounting the skin surface material 3 on the mold 20. The injection device 10 is provided with a screw 12 for kneading a molten synthetic resin 2 inside a cylindrical barrel 11. A nozzle 13 is provided at the tip of the barrel 11. By connecting the nozzle 13 to the bush 21 of the mold 20 and injecting the resin 2, the molten resin 2 is injected into the mold 20.
Is to be filled.

The mold 20 includes a fixed mold portion 20A on the right side in the drawing,
The movable mold part 20B on the left side is provided. The fixed mold part 20A is immovably fixed to the injection compression molding machine 1. This fixed mold part 20A includes
21 is provided, a sprue 22 for introducing the resin 2 into the mold 20, and a plurality of runners branched from the sprue 22.
23 and are provided. Around the runner 23,
Is provided. As a result, the runner 23 is a so-called hot runner. The movable mold part 20B is movably provided in the injection compression molding machine 1. A mold clamping device (not shown) is arranged on the left side of the movable mold part 20B in the figure. This mold clamping device moves the movable mold part 20B to the fixed mold part 20.
By pressing toward A, the mold 20 is closed. A cavity 25 for molding the molten resin 2 is provided between the fixed mold section 20A and the movable mold section 20B. A plurality of gates 26, which are injection ports for injecting the molten resin 2 into the cavity 25, are opened in the cavity 25. Each gate 26 has a sprue 22
It is connected to Lanna 23, which branches off from. Fixed mold part 20
On the mold surface of A, a temporary fixing portion 27 for temporarily fixing the skin material 3 is provided around the gate 26 on the upper side in the drawing.

As shown in FIG. 2, the temporary fixing portion 27 is formed by denting the mold surface of the fixed mold portion 20A in accordance with the skin surface material 3. The temporary fixing portion 27 is provided with a vacuum pad 41 having a vacuum suction port 40 as a temporary fixing means for sucking the skin surface material 3 around the gate 26. The vacuum pad 41 is connected to a vacuum pump (not shown) via the air discharge passage 28. As shown in FIG. 3, the vacuum suction port 40 of the vacuum pad 41 is a mortar-shaped opening that widens outward. Inside the vacuum suction port 40, there is a shaft part that can move back and forth inside the vacuum suction port 40.
42 are provided. A valve body 43 having a shape corresponding to the mortar-shaped vacuum suction port 40 is provided at the tip of the shaft portion 42. A collar portion 44 is provided at an intermediate portion of the shaft portion 42.
A coil spring 45 as an urging means for urging the shaft portion 42 in the direction of opening the valve body 43 is engaged with the flange portion 44. Here, in the vacuum pad 41, the valve body 43 opens the vacuum suction port 40, and the vacuum suction port 40 sucks the skin surface material 3 and temporarily fixes it until the molten resin 2 is filled. . On the other hand, when the molten resin 2 is filled, the molten resin 2
Presses the valve element 43 against the biasing force of the coil spring 45 to close the vacuum suction port 40, eliminates the suction force of the vacuum suction port 40, and releases the temporary fixing of the skin surface material 3.

As shown in FIG. 4, the carrying / mounting device 30 carries the skin surface materials 3 stacked in the vicinity of the injection compression molding machine 1 into the open mold 20, and at the same time, the mold 20.
It is attached to the temporary fixing portion 27 of. Transport / mounting device 30
As shown in FIG. 5, a grip portion 31 that grips the skin surface material 3, an arm 32 that supports the grip portion 31, and an arm
A base 33 that supports 32 is provided. The grip 31 is
It is attached to the tip of a movable rod 32B of a hydraulic cylinder device 32A, and this cylinder device 32A is rotatably attached to the end of an arm 32. As a result, the grip 31
Is rotated by the operation of an operating device (not shown) incorporated in the arm 32, and is moved forward and backward with respect to the fixed mold part 20A or the stacked skin surface materials 3 by the operation of the cylinder device 32A. ing. The arm 32 has a rotation shaft 33 at the base end.
It is attached to the base 33 via A. The base 33 is rotatably provided on the floor near the injection compression molding machine 1. As a result, the arm 32 is actuated by an operating device (not shown) built in the base 33 to extend between two positions, that is, a position where the skin surface materials 3 are stacked and a position where the temporary fixing portion 27 of the mold 20 is present. The grip 31 is moved.

FIG. 6 shows the grip portion 31 in an enlarged manner. In the figure, the grasping portion 31 is such that grasping claws 35 are rotatably provided at both ends of a main body 34 having a substantially inverted U-shaped cross section. The grip claw 35 is connected to the operating device 37 via a link mechanism 36. Further, gripping pieces 34A are provided at both ends of the main body 34 so as to face the gripping claws 35. The operating device with the skin surface material 3 sandwiched between the grip claw 35 and the grip piece 34A.
By operating 37, the gripping claw 35 moves toward the gripping piece 34A and grips the edge of the skin surface material 3. On the other hand, operating the actuator 37 in the opposite direction,
When the grasping claw 35 is moved away from the grasping piece 34A, the grasping portion 31 separates the edge of the grasped skin surface material 3. The side surface of the grip 31 has a positioning pin bent in an L shape.
38 is stuck. The tip of the positioning pin 38 extends toward the temporary fixing portion 27 of the fixed mold portion 20A. The fixed mold portion 20A is provided with a positioning hole 39 through which the positioning pin 38 of the grip portion 31 is inserted. By inserting the positioning pin 38 into the positioning hole 39 of the fixed mold part 20A,
The position of the grip portion 31 relative to the temporary fixing portion 27 of the fixed mold portion 20A is determined, and the transporting / mounting device 30 can securely mount the skin surface material 3 at a predetermined position of the temporary fixing portion 27. There is.

In this embodiment described above, injection compression molding is automatically performed in the following procedure. When the injection compression molding machine 1 is started, the mold 20 is opened, and the transfer / mounting device 30 mounts the skin material 3 on the temporary fixing part 27 of the fixed mold part 20A, and then the mold 20.
Closes. At this time, as shown in FIG.
20B is stopped at a position V 1 to 50 mm before the completely closed position U, and the compression margin W remains. Then, the rear part of the movable mold part 20B is blocked so as not to open the mold. Next, the injection device 10 is driven and the molten resin 2
The filling step of filling the inside of the cavity 25 of the mold 20 with the is started. By filling the molten resin 2, the skin surface material 3
7 gradually moves away from the fixed mold section 20A to the movable mold section 20B as shown in FIG. Then, when the molten resin 2 reaches the outer peripheral edge of the temporary fixing portion 27, the skin surface material 3 is completely separated from the fixed mold portion 20A as shown in FIG. It is pressed against the mold surface of the movable mold part 20B. At this time, the internal pressure of the molten resin 2 pushes the valve body 43 of the vacuum pad 41, and the pushed valve body
Since 43 closes the vacuum suction port 40, the vacuum suction port 40 has no suction force, and the entire skin surface material 3 is movable mold part 20B.
It moves to the side, and even a part does not remain on the fixed mold part 20A side. Subsequently, the mold clamping device is driven immediately before or immediately after the completion of this filling step, and the compression step is started. In this compression step, as shown in FIG. 9, the movable mold part 20B
Is advanced to the completely closed position U, a compressive force is applied to the molten resin 2 inside the cavity 25, and the molten resin 2 is spread and filled in the entire cavity 25. Next, the resin 2 is cooled while maintaining the compression force by the mold clamping, and after the resin 2 is sufficiently cooled and solidified, the mold 20 is opened, the molded product is discharged, and the molding is completed.

According to this embodiment as described above, there are the following effects. That is, the temporary fixing part 27 of the fixed mold part 20A.
By temporarily fixing the skin material 3 to the surface of the gate 26, the gate 26 is closed by the skin material 3, and in this state, the molten resin 2 is placed inside the mold 20.
Since the surface material 3 is moved to the movable mold part 20B by the filling of the molten resin 2, the back surface of the surface material 3 is temporarily fixed. Therefore, the skin surface material 3
Even if the processing for temporary fixing is performed on the back surface of the molded product, or if the processing such as providing the positioning hole 39 on the fixed mold part 20A side is performed, nothing appears on the front side of the molded product. It is possible to reliably obtain a partially laminated molded product having a good appearance without adversely affecting the appearance.

Further, the surface of the skin surface material 3 integrated with the molded product follows the mold surface of the movable mold part 20B together with the molten resin 2 after the molten resin 2 is filled. It forms the same surface as the surface, the end face of the skin material 3 is not exposed, and from this point also the appearance of the molded product is not adversely affected.

Further, the filling of the molten resin 2 is started with the mold 20 closed with the compression margin W left, and the molten resin 2
After starting the filling of the mold 20, the mold 20 is completely closed to apply the compressive force to the molten resin 2 filled in the mold 20, so that the injection pressure at the time of filling the molten resin 2 can be reduced and the skin surface Material 3
Even if the surface material 3 is not easily crushed by the pressure of the molten resin 2 and the surface material 3 is easily crushed, the quality of the surface material 3 before molding can be maintained even after molding.

A temporary fixing portion to which the skin surface material 3 is temporarily fixed
Since the vacuum suction port 40 for sucking the skin surface material 3 is provided on the 27, the transfer / mounting device 30 having a structure for gripping the skin surface material 3 can also mount the skin surface material 3 on the mold 20. Even the mounting work is automated, and mass production of partially laminated products can be achieved.

Further, a shaft portion 42 that can move back and forth inside the vacuum suction port 40, a valve body 43 provided at the tip of the shaft portion 42 to open and close the vacuum suction port 40, and the valve body 43 are opened. Since the vacuum pad 41 having the coil spring 45 that biases the shaft portion 42 in the direction is provided in the temporary fixing portion 27, the valve body 43 moves due to the internal pressure of the molten resin 2 filled in the mold 20. So that the vacuum suction port 40 is closed and the molten resin 2
There will be no trouble such as intrusion into the inside of the vacuum cleaner to block the vacuum suction port 40.

Further, when the molten resin 2 is filled, the valve body 43 operates to close the vacuum suction port 40, and the skin surface material 3 moves to the movable mold part.
Since it is surely moved to the 20B side, even if the partially laminated molded product is repeatedly molded, the partially laminated molded product can be surely obtained every time. From this point as well, mass production of the partially laminated molded product is possible. Can be achieved. In addition, the skin surface material 3 is attached to the vacuum suction port 40.
Since it is temporarily fixed to the temporary fixing portion 27 with, the skin surface material 3
Does not require an unnecessary portion protruding to the outside of the mold 20, and a post-treatment process for cutting this unnecessary portion is unnecessary, and the productivity of the partially laminated molded product can be improved.

In addition, a positioning pin that is inserted into the positioning hole 39 of the fixed mold 20A in the grip 31 of the transfer / mounting device 30.
Since the 38 is provided, the skin surface material 3 can be accurately and surely mounted at a predetermined position of the temporary fixing portion 27, and even if the partially laminated molded product is mass-produced, the skin surface member is accurately positioned at each molded product. The materials can be reliably integrated.

Next, the effects of the present invention will be described based on specific experimental examples. [Experimental Example] This experimental example is an experiment for molding a partially laminated molded article based on the above-described example. In this experimental example, a door trim which is an interior part of an automobile door is molded by the injection compression molding apparatus 1 and the mold 20 shown in the above-mentioned embodiment. As shown in FIG. 10, the door trim is an inner panel of an automobile door, and is provided with an armrest 50, a speaker storage portion 51, and the like. Above the door trim armrest 50,
A wood grain part 52 in which the surface material 3 is integrated is formed. The mold 20 has two gates 26, and four vacuum suction ports 40 are provided around the gate 26 on the temporary fixing portion 27 side. In addition, the positioning hole 39 provided in the mold 20
Since the protrusion is formed on the back surface of the door trim which is a molded product, the position of the positioning hole 39 is set so as to avoid an inconvenient position such as interference with other parts arranged inside the door.

[Injection Conditions] In the experimental example, molding is performed under the following materials, equipment, molding conditions and the like. (1) Material As a synthetic resin constituting the molded article, polypropylene:
MFR 42g / 10 minutes, 230 ° C, 2.16kgf (Idemitsu Petrochemical Co., Ltd., trade name: Idemitsu Polypro J-3050HP) is used.
Further, as the surface material, a sheet made of a vinyl chloride resin sheet and a polyester non-woven fabric is adopted. (2) Molding device As a molding device, a general-purpose injection molding machine (maximum mold clamping force: 85
0ton, Mitsubishi Heavy Industries, Ltd .: 850MGW-160) with a hydraulically driven compressor attached to the moving die plate. (3) Molding conditions The following values are adopted as molding conditions. Molding temperature 200 ℃ Mold temperature 40 ℃ Resin injection pressure 70kg / cm ² (gauge pressure) Injection time 2.3 seconds Temporary fixing release timing 0.5 seconds after resin injection start Compression start timing Resin injection start 2.2 After-second compression allowance W 6 mm Cooling time 30 seconds [Experimental result] The door trim obtained by this experimental example has no problems such as crushing of the skin material 3 and curling up of the edges, and according to the present invention. It can be seen that a good partially laminated molded product was obtained.

Although the present invention has been described above with reference to the preferred embodiment, the present invention is not limited to this embodiment, and various improvements and design changes can be made without departing from the scope of the present invention. It is possible. For example, the vacuum pad provided with the vacuum suction port is not limited to the movable type that moves the valve element to open and close the vacuum suction port, but as shown in FIG. The vacuum pad 41A in which the fixed throttle portion 47 is fixed so that the molten resin does not enter the inside, or the vacuum pad in which the vacuum suction port 48 is closed by the air permeable porous member 49 as shown in FIG. 41B etc. are also acceptable.

Further, the temporary fixing means is not limited to the one comprising a vacuum suction port, but may be a double-sided adhesive tape stuck to the mold surface of the mold or an adhesive coated. By adopting such a temporary fixing means, it is possible to temporarily fix even a skin material that has good air permeability and cannot be temporarily fixed by the vacuum suction port. Further, the temporary fixing means is not limited to one including only the vacuum suction port, and as shown in FIG. 13, a vacuum pad 54 having a vacuum suction port 53, and a pin 55 punctured by the skin surface material 3. It may be a combination of. By doing so, even if the skin surface material 3 may move due to the flow of the molten resin due to the high injection pressure, the displacement of the skin surface material 3 can be prevented. As another method of temporarily fixing the skin material, a thin needle is provided and the needle is temporarily fixed while preventing the skin material from falling, or the back surface of the skin material or the back side of the molded product is fixed. It is also possible to adopt a method of temporarily fixing by spraying an adhesive, an adhesive or the like on the mold surface to be molded.

Further, when the skin surface material is a porous skin surface material which is weak to heat and easily penetrates the molten resin, a thermoplastic film which is originally unnecessary as the skin surface material is used as a porous skin surface material. You may attach it to the back side. By doing so, it is possible to temporarily fix even with the vacuum suction port, prevent heat damage to the porous skin material, and since the surface of the porous skin material appears as it is, the partially laminated molded product originally intended. Can be obtained.

Further, the manufacturing apparatus is not limited to an injection compression molding machine in which injection of molten resin is started into a mold which is incompletely closed with a compression allowance and then the mold is completely closed. An injection molding machine for injecting a molten resin into the inside of the mold may be used.

[0030]

As described above, according to the present invention, a partially laminated molded product having a good appearance can be reliably obtained.

[Brief description of drawings]

FIG. 1 is a schematic sectional view showing an entire embodiment of the present invention.

FIG. 2 is a sectional view showing a temporary fixing means of the embodiment.

FIG. 3 is a sectional view showing a main part of a temporary fixing means of the embodiment.

FIG. 4 is a schematic view showing the carrying / mounting means of the embodiment.

FIG. 5 is a schematic perspective view showing the carrying / mounting means of the embodiment.

FIG. 6 is a schematic view showing a main part of the carrying / mounting means of the embodiment.

FIG. 7 is a cross-sectional view showing a step in the molding procedure of the example.

FIG. 8 is a cross-sectional view showing a step after that of FIG. 7 in the above embodiment.

FIG. 9 is a cross-sectional view showing a step after that of FIG. 8 in the embodiment.

FIG. 10 is a diagram showing a partially laminated molded article in one experimental example of the present invention.

FIG. 11 is a schematic cross-sectional view showing a modified example of the present invention.

FIG. 12 is a schematic cross-sectional view showing another modified example of the present invention.

FIG. 13 is a schematic sectional view showing still another modified example of the present invention.

[Explanation of symbols]

1 Injection compression molding machine that is a manufacturing equipment for partially laminated products 2 molten resin 3 skin material 20 mold 26 Gate as an outlet 27 Temporary fixing part as a mold surface to which the skin material is temporarily fixed 30 Transport / mounting device as transport / mounting means 31 grip 38 Locating pin 39 Positioning hole 40,46,48 Vacuum suction port as temporary fixing means 42 Shaft 43 Disc 45 Coil spring as biasing means 53 Vacuum suction port as temporary fixing means 55 Pin as temporary fixing means

─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. ⁷ Identification code FI // B29L 31:58 B29L 31:58 (56) References JP-A-6-262641 (JP, A) JP-A-3-1917 (JP, A) JP-A-8-118365 (JP, A) JP-B-48-37348 (JP, B1) (58) Fields investigated (Int.Cl. ⁷ , DB name) B29C 45/00-45 / 84

Claims (3)

(57) [Claims] 1. A mold of a partially laminated molded product for molding a partially laminated molded product in which a skin surface material is integrated at a predetermined position on the surface, wherein a molten resin is applied to a back side mold surface for molding the back side of the molded product. An injection port for injection is opened, and a temporary fixing unit for temporarily fixing the skin surface material is provided at a position where the injection port is closed, and the temporary fixing unit is a vacuum suction port provided on the back side mold surface, A shaft portion is provided inside the vacuum suction port so as to be able to move forward and backward, a valve body provided at the tip of the shaft portion to open and close the vacuum suction port, and the shaft portion is attached in a direction to open the valve body. A metal mold for a partially laminated molded article, comprising a biasing means for biasing. 2. A partially laminated molded article manufacturing apparatus for molding a partially laminated molded article in which a skin surface material is integrated at a predetermined position on the surface, the mold and a skin arranged outside the mold. It is provided with conveying / mounting means for transporting the face material inside the mold and for mounting the back side of the molded product on the back side mold surface for molding, wherein the mold is opened on the back side mold surface for molding the back side of the molded product. It has an injection port through which the molten resin is injected, and a temporary fixing means for temporarily fixing the skin material at a position that closes the injection port. The temporary fixing means is a vacuum suction port provided on the back side mold surface. A shaft portion provided inside the vacuum suction port so as to be able to move forward and backward, a valve body provided at the tip of the shaft portion to open and close the vacuum suction port, and the shaft portion in a direction to open the valve body. An apparatus for manufacturing a partially laminated molded article, comprising: 3. The apparatus for manufacturing a partially laminated molded product according to claim 2 , wherein the conveying / mounting means has a gripping portion that grips both end edges of the skin surface material, and positioning that extends toward the back side mold surface. An apparatus for manufacturing a partially laminated molded article, comprising a pin, and a positioning hole into which a positioning pin of the carrying / mounting means is inserted is provided in the back side mold surface.