JP2002200646A - Integral molding method and integral mold for multiple resins - Google Patents

Abstract

(57) [Problem] To provide an integral molding method and an integral molding die of a plurality of resins having good parting lines and excellent design without requiring secondary processing or the like. SOLUTION: A step of partitioning the inside of a cavity 3 by a movable block 6, a step of injecting a primary resin J1 into one partition space 4 partitioned by the movable block,
In the vicinity of the movable block, a step of cooling the primary resin while lowering the anti-design side cooling rate from the design surface side cooling rate of the primary resin, and retreating the movable block from the cavity, and then using the movable block. Injecting the secondary resin J2 into the other partitioned space 5.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for integrally molding a plurality of resins and an integrated molding die. More specifically, the present invention relates to an integral molding method and an integral molding die for integrally molding a plurality of resins at a boundary line in various fields such as automobile parts, housing equipment parts, daily necessities, and home appliance OA parts.

[0002]

BACKGROUND ART A plurality of resins (for example, resins of different colors)
When molding is performed integrally with the boundary line, especially when a crystalline resin is used as the resin, when the primary resin is first injected and the primary resin is cooled and solidified, the primary resin shrinks and the mold is formed. A gap is generated between the primary resin molded product and the primary resin molded product. Injecting the secondary resin in this state makes it easier for the secondary resin to enter the gap formed between the mold and the primary resin molded product. There is a problem that a product with a good parting line cannot be obtained.

[0003] As a method of improving this point to some extent,
Japanese Patent Application Laid-Open No. H10-250519 discloses an "instrument panel integrally having an airbag door portion and a molding method thereof". In this molding method, the interior of the cavity is partitioned by a slide core having a stepped tip, and a soft resin (primary resin) is injected into one of the partitioned spaces to form an airbag door portion. After the slide core is retracted from the cavity, a cured resin (secondary resin) is injected into the other partitioned space to form a main body.

According to this method, since the secondary resin enters the stepped portion of the slide core, that is, the secondary resin enters the non-design surface side of the primary resin of the joint, the primary resin of the joint is moved to the design surface side. A force is generated that pushes the mold and
As a result, the gap between the design surface of the next resin molded product and the design surface is closed.
There is an advantage that the parting line at the joint between the secondary resin and the secondary resin can be made good.

[0005]

However, in the molding method described above, since the secondary resin enters the step-like portion of the slide core, the secondary resin protrudes toward the anti-design surface side of the molded product,
A product in which the joint on the anti-design surface side is more protruded than the other surface is obtained. If the anti-design surface has a portion raised from the other surface, there may be a problem in installation depending on the location of the installation location or the like. In such a case, the raised portion must be cut off by secondary processing such as cutting or grinding, so that the number of steps is increased and the cost is increased.

SUMMARY OF THE INVENTION An object of the present invention is to solve such a conventional problem and to provide a method of integrally molding a plurality of resins having a good parting line and excellent design without requiring secondary processing or the like. To provide a mold.

[0007]

In order to achieve the above object, the present invention employs the following two methods. First
The method of (1) causes a sink on the anti-design surface side of the primary resin and makes it easier for the secondary resin to flow to the sink portion, thereby closing a gap between the design surface of the primary resin and the cavity, This is to prevent the secondary resin from entering the gap. In the second method, after cooling the primary resin, the primary resin is pressed from the anti-design surface side toward the design surface side to close a gap between the design surface of the primary resin and the cavity. In the above, the secondary resin is injected.

First, a specific integrated molding method for realizing the first method is a method of integrally molding a plurality of resins integrally with a boundary line as a boundary, wherein the interior of the cavity is partitioned by a movable block. And a step of injecting the primary resin into one of the divided spaces defined by the movable block. In the vicinity of the movable block, the cooling speed on the anti-design surface side is made slower than the cooling speed on the design surface side of the primary resin. A step of cooling the primary resin and a step of injecting the secondary resin into the other partitioned space defined by the movable block after retracting the movable block from the cavity. And Any resin may be used as long as it is a thermoplastic resin. In addition, a plurality of resins are different in color,
It refers to two or more types of resins having different resin types and properties. Further, the resin in this case is meant to include the resin composition.

According to this integral molding method, after the interior of the cavity is partitioned by the movable block, the primary resin is injected into one of the partitioned spaces partitioned by the movable block. Here, in the vicinity of the movable block, the anti-design surface side cooling speed is made lower than the design surface side cooling speed of the primary resin, that is, while the anti-design surface side temperature is kept higher than the design surface side temperature of the primary resin. When the primary resin is cooled, particularly in the case of a crystalline resin, crystallization on the anti-design surface side proceeds from the design surface side, and sink marks occur on the anti-design surface side of the primary resin. Then, after retracting the movable block from the cavity,
When the secondary resin is injected into the other partitioned space, the secondary resin becomes 1
As a result of penetrating into the sink portion generated on the anti-design surface side of the next resin and pressing the primary resin from the anti-design surface side to the design surface side,
The gap between the design surface of the primary resin and the cavity is closed. Therefore, since it is possible to prevent the secondary resin from entering between the design surface of the primary resin and the cavity, the parting line is good,
An integrally molded product with excellent design properties can be obtained. Of course, no raised portion is formed on the anti-design surface side, so that secondary processing can be omitted.

In the first method, in order to keep the temperature of the primary resin on the side opposite to the design surface higher than the temperature on the design surface side, it is usual to make a difference in the mold temperature. For example, when a crystalline resin is used, the mold temperature on the anti-design side is maintained at “crystallization temperature to (crystallization temperature−40 ° C.)”, and the mold on the design side is kept at a lower temperature and the anti-design side. 20 ° C from the side mold temperature
It is mentioned that the temperature is kept at a low temperature. In the case of using an amorphous resin, the temperature of the mold on the non-design surface side may be maintained at 20 ° C. or more, preferably 30 ° C. or more higher than the mold surface temperature.

A specific one-piece molding die for realizing the first method is a one-piece molding die of a plurality of resins integrally formed with a boundary line of a plurality of resins in combination with a mold having a cavity therein. A movable block which is provided in the cavity inside the mold so as to be able to advance and retreat, and which partitions the inside of the cavity; Heat supply means provided.

According to this integral molding die, when the primary resin is injected into one of the divided spaces defined by the movable block, the primary resin in the vicinity of the movable block is cooled by the heat supply means on the metal surface on the side opposite to the design surface. Since the mold temperature is higher than the mold temperature on the design surface side, sink marks occur on the anti-design surface side of the primary resin. Thereafter, when the secondary resin is injected into the other partitioned space defined by the movable block, the secondary resin penetrates into the sink portion generated on the anti-design surface side of the primary resin, and the primary resin is transferred to the anti-design surface side. As a result, the gap between the design surface of the primary resin and the cavity is closed. Accordingly, the intrusion of the secondary resin from between the design surface of the primary resin and the cavity can be prevented, so that an integrally molded product having a good parting line and excellent design can be obtained. Of course, no raised portion is formed on the anti-design surface side, so that secondary processing can be omitted.

Another specific one-piece molding die for realizing the first technique is a one-piece molding die of a plurality of resins integrally formed with a plurality of resins separated by a parting line. A mold, a movable block provided in the cavity inside the mold so as to be able to advance and retreat, and defining the cavity; and a mold near the movable block in one of the partition spaces defined by the movable block. And a heat-insulating layer provided on the substrate.

According to this integrated molding die, when the primary resin is injected into one of the divided spaces defined by the movable block, the primary resin in the vicinity of the movable block is reduced by the heat insulating layer to the mold on the anti-design surface side. Since the temperature is higher than the mold temperature on the design surface side, sink marks occur on the non-design surface side of the primary resin. Thereafter, when the secondary resin is injected into the other partitioned space defined by the movable block, the secondary resin penetrates into the sink portion generated on the anti-design surface side of the primary resin, and the primary resin is transferred to the anti-design surface side. As a result, the gap with the cavity is closed. Therefore, an integrally molded product having good parting lines and excellent design can be obtained. Of course, no raised portion is formed on the anti-design surface side, so that secondary processing can be omitted.

[0015] In the above-mentioned one-piece molding die, it is preferable that the heat-insulating layer is a heat-insulating material provided on the opposite design surface-side die in the one partitioned space. Here, as the heat insulating material, any material having a low thermal conductivity such as a heat insulating sheet or a heat insulating film may be used. With such a configuration, there is an advantage that the above object can be achieved with a relatively inexpensive and simple configuration.

In the above integrated molding die, it is preferable that the heat insulating layer is a gas layer injected from the opposite design surface side die in the one partitioned space. In order to form a gas layer, a gas injection hole may be provided in the opposite design surface side mold in one of the partitioned spaces, and gas may be injected from the gas injection hole. With this configuration, the primary resin is cooled while being kept at a higher temperature than the design surface side temperature by the gas layer formed on the anti-design surface side mold in one partition space. You. As a result, sink marks occur on the side opposite to the design surface of the primary resin, and the same effects as above can be expected.

A specific integral molding method for realizing the second method is a step of dividing the inside of a cavity by a movable block in an integral molding method of a plurality of resins integrally forming a plurality of resins at a boundary line. And injecting the primary resin into one of the divided spaces defined by the movable block; and, after the completion of the injection of the primary resin, the primary resin is brought closer to the design surface than the anti-design surface in the vicinity of the movable block. And a step of injecting a secondary resin into the other partitioned space defined by the movable block after retracting the movable block from the inside of the cavity.

According to this integral molding method, after the interior of the cavity is partitioned by the movable block, the primary resin is injected into one partition space partitioned by the movable block. Thereafter, after the injection of the primary resin is completed, when the primary resin is pressed from the anti-design surface side to the design surface side, the primary resin is pressed from the anti-design surface side to the design surface side, and the gap with the cavity is closed. Can come off. In this state, after the movable block is retracted from the cavity and the secondary resin is injected into the other partitioned space, the secondary resin does not enter between the design surface of the primary resin and the cavity. In addition, an integrally molded product having good parting lines and excellent design can be obtained. Of course, no raised portion is formed on the anti-design surface side, so that secondary processing can be omitted. When the primary resin is pressed from the non-design surface side to the design surface side in the vicinity of the movable block, the step (operation) needs to be performed at least after the cooling of the primary resin. The pressing step may be started during the cooling of the next resin. It is preferable that the pressing step is continued until the injection of the secondary resin is completed.

A specific one-piece molding die for realizing the second method is a one-piece molding die of a plurality of resins integrally formed with a parting line as a boundary, and a mold having a cavity therein. A movable block, which is provided in the cavity inside the mold so as to be able to advance and retreat, and partitions the inside of the cavity; and, near the movable block, is injected and filled into one of the partition spaces defined by the movable block.
Pressing means for pressing the next resin from the anti-design surface side toward the design surface side.

According to this integrated molding die, after the primary resin is injected into one of the divided spaces defined by the movable block, the primary resin is moved from the anti-design surface side toward the design surface side by the pressing means. Press. Then, the primary resin is pressed from the anti-design surface side to the design surface side, and the gap between the design surface of the primary resin and the cavity is closed. In this state, after the movable block is retracted from the cavity and the secondary resin is injected into the other partitioned space, the secondary resin does not enter between the design surface of the primary resin and the cavity. In addition, an integrally molded product having good parting lines and excellent design can be obtained. Of course, no raised portion is formed on the anti-design surface side, so that secondary processing can be omitted.

In the above-described integrated mold, the pressing means includes a movable core provided on a counter design surface side mold in one partitioned space defined by the movable block in the vicinity of the movable block; It is preferable that the core includes a pressing force applying means for applying a pressing force to the movable core in a direction of pressing the primary resin. Here, the pressing force applying means may be a spring or a hydraulic or pneumatic cylinder. With such a configuration, the primary resin in the vicinity of the movable block can be uniformly pressed over a certain range, so that the gap between the design surface of the primary resin and the cavity can be reliably closed.

In the above-mentioned integrated molding die, the pressing means includes a gas injection hole provided in an opposite design surface side die in one of the partitioned spaces defined by the movable block in the vicinity of the movable block. It is preferable to include a gas injection means for injecting a gas into the gas injection hole. With such a configuration, when a gas is injected into the gas injection hole, the primary resin is pressed from the anti-design surface side to the design surface side by the injected gas pressure. The gap with the cavity is closed. Therefore, an integrated molded product having a good parting line and excellent design can be obtained.

[0023]

Embodiments of the present invention will be described below with reference to the drawings. In the following description, the same components will be denoted by the same reference numerals, and the description thereof will be omitted or simplified.

[First Embodiment] FIGS. 1A and 1B show a first embodiment.
1 shows an integrated mold according to an embodiment. This integrated molding die is divided into upper and lower halves, and has cavities 3 on the divided surface thereof, and cavities 3 in the dies 1 and 2.
A movable block 6 that partitions the interior of the device into two partition spaces 4 and 5, and a mold 1 </ b> A near the movable block 6 in one of the partition spaces 4 defined by the movable block 6. Heat supply means 7.
The heat supply means 7 is provided on the anti-design surface side mold 1 </ b> A in the partitioned space 4 and is formed of a material having a high heat conductivity.
A fluid conduit 9 provided inside the heat conduction block 8; and a temperature regulating fluid supply means (not shown) for flowing a temperature regulated fluid 10 through the fluid conduit 9. The temperature control fluid 10 may be any of oil, hot water, and the like.

The following steps are used to integrally mold a plurality of resins with a parting line as a boundary by using the integrally molded mold. (1) The inside of the cavity 3 is partitioned by the movable block 6. That is, the movable block 6 is advanced into the cavity 3 and the inside of the cavity 3 is partitioned into two partition spaces 4 and 5. (2) The primary resin J1 is injected into one of the partition spaces 4 partitioned by the movable block 6 (see FIG. 1A). (3) In the vicinity of the movable block 6, the primary resin J1 is cooled while keeping the cooling speed on the anti-design surface side lower than the cooling speed on the design surface side of the primary resin J1. That is, the heat supply means 7
The temperature-regulated fluid 10 whose temperature has been adjusted into the fluid line 9 of
The primary resin J1 is cooled while keeping the mold temperature on the anti-design surface side of the primary resin J1 higher than the mold temperature on the design surface side. Then, sink marks occur on the anti-design surface side of the primary resin J1.

(4) After the movable block 6 is retracted from the cavity 3, the secondary resin J2 is injected into the other partitioned space 5 partitioned by the movable block 6 (FIG. 1).
(B)). That is, the movable block 6 is connected to the cavity 3
After retreating from the inside, the secondary resin J
Inject 2. Then, the secondary resin J2 injected into the other partition space 5 penetrates into the sink portion generated on the anti-design surface side of the primary resin J1, and presses the primary resin J1 from the anti-design surface side to the design surface side. As a result, the gap between the design surface of the primary resin J1 and the cavity 3 is closed. Therefore, an integrally molded product having good parting lines and excellent design can be obtained.

According to the first embodiment, the primary resin J1 is cooled while the cooling speed on the anti-design surface side is made slower than the cooling speed on the design surface side of the primary resin J1. Sinking occurs on the anti-design surface side of the primary resin J1. In this state, the secondary resin J2 is injected, so that the secondary resin J2 penetrates into the sink portion formed on the anti-design surface side of the primary resin J1 and the primary resin J1 is designed from the anti-design surface side. As a result, the gap between the design surface of the primary resin J1 and the cavity 3 is closed. Therefore, an integrally molded product having good parting lines and excellent design can be obtained. By the way, although the primary resin is cooled at the time of starting the injection of the secondary resin, the primary resin in the vicinity of the parting-off part is higher in temperature than other primary resin parts, so the secondary resin is injected. After completion and sufficient cooling, the bonding strength is measured and the strength is improved. This is presumed to be due to promotion of molecular diffusion of the two resins at the joint surface between the primary resin and the secondary resin.
Of course, no bumps are formed on the anti-design surface side.
Subsequent processing can be eliminated. Note that the heat supply means 7 is not limited to the configuration of the above embodiment, and may have another configuration. For example,
A structure in which a heater is embedded in the heat conduction block 8 may be used.

[Second Embodiment] FIGS. 2A and 2B show a second embodiment.
1 shows an integrated mold according to an embodiment. This integrated molding die is different from the integrated molding die of the first embodiment in that the heat supply means 7 is omitted, and instead, the anti-design surface side mold 1A (movable block Mold 1 near 6
A) is provided with a heat insulating layer 11. Here, the heat insulating layer 11 is constituted by a heat insulating film (or a heat insulating sheet) 12 attached to the opposite design surface side mold 1 </ b> A in the partitioned space 4. 2 (A) and 2 (B), the thickness of the heat insulating layer 11 is increased for explanation. In the case where the heat treatment is performed, there is no problem even if such a condition is satisfied. Usually, the design surface side mold 1A is substantially flat.

According to the second embodiment, since the heat insulating layer 11 is provided on the opposite design surface side mold 1A in the compartment space 4,
The primary resin J1 in the vicinity of the movable block 6 has a mold temperature on the anti-design surface side higher than the mold temperature on the design surface side due to the heat insulating layer 11, so that sink marks occur on the primary resin J1 on the anti-design surface side.
Accordingly, as a result of the secondary resin J2 penetrating into the sink portion formed on the anti-design surface side of the primary resin J1, the primary resin J1 is pressed from the anti-design surface side to the design surface side, and the gap with the cavity 3 is closed. As a result, the same effect as in the first embodiment can be expected.
In particular, the heat insulating layer 11 is formed of a heat insulating sheet, a heat insulating film 12 provided on the anti-design surface side mold 1 </ b> A in one of the partitioned spaces 4.
Therefore, there is an advantage that the configuration can be made relatively inexpensively and easily.

In the second embodiment, as the heat insulating layer 11, a heat insulating sheet, a heat insulating film 12, and the like are used.
The present invention is not limited to this, and other materials and structures may be used. For example, as shown in FIGS. 3A and 3B, a material 13 having a low thermal conductivity is used.
It may be. As shown in FIGS. 4A and 4B, a gas injection hole 14 is provided in the mold 1A on the side opposite to the design surface in one of the divided spaces 4, and the gas layer injected from the gas injection hole 14 insulates the heat. The layer 11 may be formed. With such a configuration, by injecting a gas from the gas injection hole 14 provided in the opposite design surface side mold 1 </ b> A in one partition space 4, the temperature of the primary resin J <b> 1 on the opposite design surface side is reduced. It can be cooled while keeping it higher than the side temperature. Therefore,
Since sink marks occur on the anti-design surface side of the primary resin J1, the same effect as described above can be expected.

Third Embodiment FIGS. 5A and 5B show a third embodiment.
1 shows an integrated mold according to an embodiment. This integrated molding die is divided into upper and lower halves, and has cavities 3 on the divided surface thereof, and cavities 3 in the dies 1 and 2.
And a primary resin J1 injected and filled in one of the partition spaces 4 defined by the movable block 6 in the vicinity of the movable block 6. And pressing means 21 for pressing from the design surface side to the design surface side. Pressing means 21
In the vicinity of the movable block 6, a movable core 22 provided in the opposite design surface side mold 1A in one of the divided spaces 4 partitioned by the movable block 6, and the movable core 22 presses the primary resin J1. And a spring 23 as a pressing force applying means for applying a pressing force to the movable core 22 in the direction in which the movable core 22 moves.

The following steps are performed to integrally mold a plurality of resins using a parting line as a boundary by using the integrally molded mold. (11) Same as (1) above. (12) Same as (2) above. (13) After the injection of the primary resin J1 is completed, the movable block 6
, The primary resin J1 is pressed from the anti-design surface side toward the design surface side. That is, the primary resin J1 near the movable block 6 is pressed by the pressing means 21 from the anti-design surface side toward the design surface side. In addition, the pressing start timing of the movable block 6 is not limited to after the cooling of the primary resin J1.
It may be started during the cooling of the primary resin J1, and it is preferable that the pressing step is continued until the injection of the secondary resin J2 is completed.

(14) After the movable block 6 is retracted from the cavity 3, the secondary resin J2 is injected into the other partitioned space 5 partitioned by the movable block 6. Then, since the secondary resin J2 does not penetrate between the design surface of the primary resin J1 and the cavity 3, an integral molded product having a good parting line and excellent design properties can be obtained. Of course,
Since no protruding portion is formed on the anti-design surface side, secondary processing can be omitted.

According to the third embodiment, after cooling the primary resin J1, the primary resin J1 is pressed from the anti-design surface side toward the design surface side, and the design surface of the primary resin J1 and the cavity 3 are pressed.
After the movable block 6 is retracted from the cavity 3 in a state where the gap between
The secondary resin J2 is injected into the
No. 2 does not penetrate between the design surface of the primary resin J1 and the cavity 3, so that an integral molded product having a good parting line and excellent design properties can be obtained. Of course, no raised portion is formed on the anti-design surface side, so that secondary processing can be omitted.

The pressing means 21 includes, near the movable block 6, a movable core 22 provided in the opposite design surface side mold 1A in one of the divided spaces 4 partitioned by the movable block 6, 22 includes a spring 23 as a pressing force applying means for applying a pressing force to the movable core 22 in a direction of pressing the primary resin J1, so that the primary resin J1 near the movable block 6 is removed. Pressing can be performed uniformly over a certain range, and the gap between the design surface of the primary resin J1 and the cavity 3 can be reliably closed.

Although the spring 23 is used as the pressing force applying means in the third embodiment, the present invention is not limited to this. For example, a hydraulic or pneumatic cylinder 24 as shown in FIGS. 6A and 6B may be used.

In the third embodiment, the pressing means 21
Is composed of the movable core 22 and the spring 23, but is not limited thereto. For example, as shown in FIGS. 7A and 7B, near the movable block 6, a gas injection hole provided in the opposite design surface side mold 1 </ b> A in one partition space 4 partitioned by the movable block 6. 25 and this gas injection hole 2
5 may be configured to include a gas injecting unit (not shown) for injecting a gas. With this configuration, when a gas is injected into the gas injection hole 25, the primary resin J1 is pressed from the anti-design surface side to the design surface side by the injected gas pressure. Design surface and cavity 3
The gap with is closed. Therefore, an integrated molded product having a good parting line and excellent design can be obtained.

[0038]

As described above, according to the method for integrally molding a plurality of resins and the mold for integral molding of the present invention, an integral molding having a good parting line and excellent design without requiring secondary processing or the like. A molded article can be obtained.

[Brief description of the drawings]

FIG. 1 is a view showing an integrated molding die according to a first embodiment of the present invention.

FIG. 2 is a view showing an integrated molding die according to a second embodiment of the present invention.

FIG. 3 is a diagram showing a modification of the second embodiment.

FIG. 4 is a diagram showing still another modified example of the second embodiment.

FIG. 5 is a view showing an integrated molding die according to a third embodiment of the present invention.

FIG. 6 is a diagram showing a modification of the third embodiment.

FIG. 7 is a view showing still another modification of the third embodiment.

[Explanation of symbols]

 1, 2 Mold 1A Anti-design surface side mold 3 Cavity 4,5 Partition space 6 Movable block 7 Heat supply means 11 Heat insulation layer 12 Heat insulation film (heat insulation material) 13 Low thermal conductivity material (heat insulation material) 14 Gas injection hole 21 Pressing means 22 Movable core 23 Spring (pressing force urging means) 24 Cylinder (pressing force urging means) 25 Gas injection hole J1 Primary resin J2 Secondary resin

Continuation of front page (72) Inventor Yasushi Furukawa 2-56, Suda-cho, Mizuho-ku, Nagoya-shi, Aichi Japan F Co., Ltd. F-term (reference) 4F202 AG03 CA11 CB01 CB22 CK52 4F206 AG03 JA07 JB22 JB28 JF01 JL02 JM04 JN12 JQ81

Claims (9)

[Claims] 1. A method for integrally molding a plurality of resins, wherein the plurality of resins are integrally molded with a boundary line as a boundary, wherein: a step of partitioning the interior of the cavity by a movable block; Injecting the primary resin, cooling the primary resin in the vicinity of the movable block while lowering the anti-design surface cooling rate from the design surface cooling rate of the primary resin, After evacuating from inside,
Injecting a secondary resin into the other partitioned space defined by the movable block. 2. A mold for integrally molding a plurality of resins, wherein the plurality of resins are integrally molded with a boundary line as a boundary, wherein a mold having a cavity therein; A plurality of resin blocks, comprising: a movable block for partitioning the movable block; and heat supply means provided in the vicinity of the movable block on the opposite design surface side mold in one of the partitioned spaces partitioned by the movable block. Integral molding die. 3. A mold for integrally molding a plurality of resins, wherein the plurality of resins are integrally molded with a parting line as a boundary, wherein the mold has a cavity therein, and the mold is provided so as to be able to advance and retreat within the cavity inside the mold. And a heat insulating layer provided on the opposite design surface side mold in one of the divided spaces defined by the movable block in the vicinity of the movable block. One-piece mold. 4. The mold for integrally molding a plurality of resins according to claim 3, wherein the heat-insulating layer is a heat-insulating material provided on an anti-design surface side mold in the one partitioned space. Integrated mold for multiple resins. 5. The mold for integrally molding a plurality of resins according to claim 3, wherein the heat-insulating layer is a gas layer injected from a counter-design-surface-side mold in the one partitioned space. Integrated mold for multiple resins. 6. A method for integrally molding a plurality of resins integrally with a boundary line as a boundary, wherein a step of partitioning the interior of the cavity by a movable block, and a step of partitioning the interior of the cavity into one of the partition spaces defined by the movable block. A step of injecting the primary resin, a step of pressing the primary resin from the anti-design surface side to the design surface side in the vicinity of the movable block after completion of the injection of the primary resin, After evacuating from
A step of injecting a secondary resin into the other partitioned space defined by the movable block. 7. A mold for integrally molding a plurality of resins, wherein the plurality of resins are integrally molded with a parting line as a boundary, wherein the mold has a cavity therein, and the mold is provided so as to be able to advance and retreat within the cavity inside the mold. And a pressing means for pressing the primary resin injected and filled in one of the partitioned spaces defined by the movable block from the anti-design surface side to the design surface side in the vicinity of the movable block. An integrated molding die for a plurality of resins, comprising: 8. The mold for integrally molding a plurality of resins according to claim 7, wherein the pressing means is provided in the vicinity of the movable block in the one-part space defined by the movable block. And the movable core provided in the
And a pressing force applying means for applying a pressing force to the movable core in a direction of pressing the next resin. 9. The mold according to claim 7, wherein the pressing means is provided in the vicinity of the movable block in the one-sided space defined by the movable block. And a gas injection means for injecting a gas into the gas injection hole.