JP7398263B2 - injection mold - Google Patents

Description

The present invention relates to an injection mold, and particularly to an injection mold that molds a resin molded product by injecting resin into a cavity formed between a fixed mold and a movable mold.

When molding a resin molded product by injection molding, undercuts may occur in the molded product. An undercut refers to a part of a molded product that cannot be released from the mold as it is when taken out of the mold, and usually consists of a convex part or a concave part. In injection molding molds, methods for eliminating (processing) such undercuts are widely and variously used, and one example is the injection molding mold described in Patent Document 1 below. In many injection molding molds, including this one, the movable mold is equipped with a mechanism for treating undercuts, and after the fixed mold and movable mold are separated, the undercut treatment mechanism is activated to remove the molded product. Release the mold. Note that the undercut treatment refers to general measures for making the molded product releasable when the bent portion of the resin molded product becomes undercut, as seen in Patent Document 1 below, for example. Therefore, the undercut process also includes a case where the fixed mold and the movable mold cannot be separated by an undercut.

Japanese Patent Application Publication No. 2014-151562

Incidentally, in injection molded products, minute protrusions called parting lines are formed, for example, at the joints between a fixed mold and a movable mold, or at the joints between mold parts or mold members constituting a movable mold. Some resin molded products for vehicles are made with colored paint, but for example, the paint film on the parting line becomes thinner after painting, and the thin paint film has streaks of different colors. It may appear as.

In such cases, the design of the product requires that the parting line be set in an invisible location, and as a result, for example, the molded product may have bent parts that are bent in a direction that intersects the mold opening/closing direction of fixed and movable molds. It may be necessary to butt the fixed mold and the movable mold at a position offset from the bulging end of the bent portion. In such a case, the outside portion of the bent portion of the resin molded product becomes undercut, and there is a possibility that the fixed mold and the movable mold cannot be separated. In such a case, it is possible to remove undercuts by providing an undercut processing mechanism in the fixed mold. However, the fixed mold generally forms the outer surface of the molded product, so to speak, the design surface, and if the fixed mold is provided with an undercut processing mechanism, it will be necessary to divide the fixed mold at the processing mechanism part. , a parting line is formed on the divided portion, that is, on the design surface, which also reduces the design quality.

The present invention has been made in view of the above-mentioned problems, and its purpose is to prevent the fixation even if the outer part of the bent part of the resin molded product becomes an undercut when separating the fixed mold and the movable mold. To provide an injection molding die capable of treating undercuts without providing an undercut treatment mechanism in the mold.

In order to achieve the above object, the injection mold of the present invention has the following features:
An injection mold for molding a resin molded product by injecting resin into a cavity formed between a fixed mold and a movable mold, wherein the resin molded product crosses the mold opening/closing direction of the fixed mold and the movable mold. In an injection molding mold, the fixed mold and the movable mold are butted against each other at a position offset from the bulging end of the bent part of the resin molded product,
The movable mold is moved in a direction toward and away from the fixed mold, and includes a first movable mold part disposed ahead of the bent part of the resin molded product in a bending direction; a second movable mold part that is disposed at a position of a bent part of the resin molded product and is moved toward and away from the first movable mold part while holding the bent part of the resin molded product; and the second movable mold part and the first movable mold part, and is moved in the separation direction by a drive separate from the movement of the first movable mold part, and is moved between the second movable mold part and the first movable mold part. an insertion/removal member that is inserted into/removed from the space ;
The second movable mold part includes a first mold member on the first movable mold part side and a second mold member on the opposite side that sandwich the bent part of the resin molded product from a direction perpendicular to the separating direction. , characterized in that the first mold member and the second mold member can be separately separated from the first movable mold part .

According to this configuration, when the insertion/extraction member is removed and there is a space between the second movable mold part and the first movable mold part, the second movable mold part approaches the space side, that is, the first movable mold part side. Then, the bent part of the resin molded product held in the second movable mold part is moved toward the first movable mold part, thereby causing the part of the resin molded product including the bent part to move inward of the bend. It is elastically deformed. Therefore, even if the outside part of the bent part of the resin molded product becomes undercut when separating the fixed mold and the movable mold, it is possible to separate that part from the fixed mold, and as a result, the undercut can be avoided. The fixed type and the movable type can be separated by processing. In addition, when rigidity is required for the movable mold, such as during resin injection molding, by inserting the insertion/extraction member into the space, there is no movable gap between the first movable mold part and the second movable mold part, and the movable mold part can be moved. The rigidity of the mold is ensured.

Further, in a state where there is a space between the first movable mold part and the second movable mold part, the first mold member and the second mold member sandwiching the bent part of the resin molded product are integrated into the first movable mold part. The part including the bent part is elastically deformed, the fixed mold and the movable mold are separated by processing the undercut in that state, and then the second mold is separated from the first mold member. If the member is separated from the first movable mold part, for example, the elastically deformed portion of the resin molded product including the bent part is restored, and the resin molded product can be released from the movable mold.

A further configuration of the present invention is that the second movable mold part is configured to move the first mold member and the second mold member in a state where the insertion/extraction member is removed, the space exists, and the bent part of the resin molded product is sandwiched between the second movable mold parts. is integrally moved in a direction approaching the first movable mold part, and then the first mold member and the second mold member are separately moved in a direction away from the first movable mold part. Features.

According to this configuration, with a space between the first movable mold part and the second movable mold part, the first mold member and the second mold member sandwiching the bent part of the resin molded product are integrally formed. When approached to the first movable mold part side, the part including the bent part is elastically deformed, and in this state, the undercut is processed to separate the fixed mold and the movable mold, and then the part is separated from the first mold member. By separating the second mold member from the first movable mold part, the elastically deformed portions of the resin molded product including the bent portions are restored, and the resin molded product can be released from the movable mold.

A further configuration of the present invention is that the first mold member is divided into a first split mold member on the side of the first movable mold part and a second split mold member on the opposite side, and the first split mold member and The second split mold member is separately separable from the first movable mold part, and the second split mold member is moved away from the first movable mold part after the second mold member is moved away from the first movable mold part. The present invention is characterized in that a delay mechanism that moves away from the first movable mold part is provided.

According to this configuration, the bent part of the resin molded product is sandwiched between the second split mold member and the second mold member, so that the second mold member is separated from the first movable mold part. After a delay, the second split mold member can be moved away from the first movable mold part so as to push out the bent portion of the resin molded product from the first split mold member, thereby facilitating the mold release of the resin molded product.

As explained above, according to the present invention, even if the outer part of the bent part of the resin molded product becomes an undercut when separating the fixed mold and the movable mold, the undercut processing mechanism is provided in the fixed mold. Undercuts can be treated without providing any undercuts, thereby making it possible to manufacture resin molded products with excellent design.

FIG. 1 is a sectional view showing an embodiment of an injection molding mold of the present invention. FIG. 2 is a detailed view of the injection mold of FIG. 1; FIG. 2 is an explanatory diagram of the operation of the injection mold shown in FIG. 1; FIG. 2 is an explanatory diagram of the operation of the injection mold shown in FIG. 1; FIG. 5 is a detailed view of the injection mold of FIG. 4; FIG. 2 is an explanatory diagram of the operation of the injection mold shown in FIG. 1; FIG. 7 is a detailed view of the injection mold of FIG. 6; FIG. 2 is a detailed view of a conventional injection mold. FIG. 9 is an explanatory diagram of a resin molded article (product) manufactured with the injection mold of FIG. 8; FIG. 2 is an explanatory diagram of a resin molded article (product) manufactured with the injection mold of FIG. 1. FIG.

EMBODIMENT OF THE INVENTION Below, embodiment of the injection molding mold of this invention is described in detail with reference to drawings. FIG. 1 is a sectional view showing a state in which resin injection molding is completed using the injection mold of this embodiment. The injection mold of this embodiment is roughly divided into, for example, a fixed mold 1 in the right half of the figure and a movable mold 2 in the left half of the figure, like existing injection molds. As is well known, resin is injected into a cavity 3 formed between the fixed mold 1 and the movable mold 2 to form a resin molded product 4. There are a wide variety of shapes of molded products that are injection molded, and the resin molded product 4 of this embodiment is one of these various molded products.In general, the fixed mold 1 is also called a female mold, and It is used to form the outer surface of the product, that is, the design surface. Also in this embodiment, the fixed mold 1 forms the outer surface (design surface) of the resin molded product 4.

The movable mold 2 is moved (slided) relative to the fixed mold 1 in a direction toward and away from the fixed mold 1, in this case in a left-right direction in the figure (hereinafter also referred to as a mold opening/closing direction), by a drive source (not shown). The upper part of this movable mold 2 is a first movable mold part 5 (meaning a part of the mold) which forms the main part of the cavity 3 with the fixed mold 1. By moving the mold part 5 by a drive source (not shown), the entire movable mold 2 including a second movable mold part 6, which will be described later, is brought into and out of contact with the fixed mold 1. In this embodiment, as will be described later, a portion (hereinafter referred to as an inclined portion) 41 that is oblique from the upper right to the lower left of the figure at the center in the vertical direction of the figure, and the lower end of the resin molded product 4, as described later. A portion 42 that is bent diagonally upward (hereinafter referred to as a bent portion) is subject to undercut processing. The bent portion 42 of the resin molded product 4 is bent in a direction intersecting the mold opening/closing direction of the fixed mold 1 and the movable mold 2, and the first movable mold portion 5 is bent at the bent portion of the resin molded product 4. 42 in the bending direction. Therefore, in this embodiment, this part (lower part) of the first movable mold part 5 is recessed, and an undercut processing mechanism is disposed there. Note that the mold member constituting the first movable mold section 5 extends downward on the left side of the figure.

A second movable mold part 6 is disposed within the recess formed in the first movable mold part 5, that is, below the first movable mold part 5 (=one of the directions perpendicular to the mold opening/closing direction). It is set up. This second movable mold part 6 is composed of a first mold member 7 and a second mold member 8, as described later, and the first mold member 7 is further divided into a first split mold member 9 and a second split mold member 10. The parts are divided into parts and are moved together or separately by a hydraulic cylinder 13 whose cylinder rod 13a extends in the vertical direction in the figure. Although details of the movement will be explained later, the entire second movable mold section 6 is moved toward and away from the first movable mold section 5 in the vertical direction in the figure by the hydraulic cylinder 13. In order to make it easier to understand, the arrangement of the above-mentioned members will be briefly explained. The first mold member 7 is divided into a first split mold member 9 on the side of the first movable mold part 5 and a second split mold member 10 on the opposite side. Further, the cylinder rod 13a of the hydraulic cylinder 13 is directly connected only to the second mold member 8.

A space 11, which will be described later, is provided above the second movable mold part 6, that is, between it and the first movable mold part 5, and in FIG. 1, an insertion/extraction member 12 is inserted into the space 11. . In the state shown in the figure, the lower surface of the insertion/removal member 12 is in contact with the upper surface of the first split mold member 9 disposed at the top of the second movable mold section 6 in the illustration, and thereby the first movable mold section 5. The insertion/removal member 12 and the second movable mold part 6 are in contact with each other, and there is no movable gap between these members, that is, inside the movable mold 2. The insertion/extraction member 12 is inserted into/extracted from the space 11 by being driven separately from the left side of the drawing in the mold opening/closing direction (in a direction parallel to the same) by a drive source separate from the drive source for the first movable mold section 5 . Therefore, when the insertion/extraction member 12 is pulled out to the left in the figure, a space 11 is created above the second movable mold part 6. In this embodiment, the lower surface of the insertion/removal member 12 and the upper surface of the first split mold member 9 of the second movable mold section 6 are both formed with an inclination from the upper right to the lower left in the figure, and from the left in the diagram. The insertion/extraction member 12 is configured to be smoothly inserted into/extracted from the space 11.

The tip of the bent portion 42 of the resin molded product 4 described above is slightly extended to the left in the figure. FIG. 2 is a detailed view showing the lower tip portion and bent portion 42 of the inclined portion 41 of the resin molded product 4 in FIG. 1. The second movable mold part 6 is connected to the first mold member 7 and the second mold which sandwich the tip extension part 43 of the bent part 42 of the resin molded product 4 from the vertical direction in the figure (=direction perpendicular to the mold opening/closing direction). It consists of member 8. Further, the first mold member 7 includes the second split mold member 10 that contacts only the distal end extension portion 43 of the bent portion 42 of the resin molded product 4 from above in the drawing, the inner surface of the bent portion 42, and the inclined portion. It is divided into the first split-type member 9 that abuts the inner surface of the portion 41. These members are expressed as "sandwiching" or "abutting" the resin molded product 4, but since they are all mold members, they are part of the movable mold 2 that forms the cavity 3 during injection molding. function as a department.

As shown in FIG. 1, the second split-type member 10 has an upper end that can fit into a recess on the lower surface of the first split-type member 9, and is inserted into the recess when forming a cavity. . Further, a downwardly extending portion partially extending downward from the second split mold member 10 is inserted into the second mold member 8. The downwardly extending portion of the second split mold member 10 is movable in the vertical direction within the second mold member 8, and a spring member 14 is interposed between the two. This spring member 14 biases the second split mold member 10 and the second mold member 8 in the direction of separation from each other, and when the spring member 14 is compressed by a predetermined amount, the second split mold member 10 and the second mold member The members 8 are mechanically coupled and move together. Further, a spring member (not shown) is also interposed between the second mold member 8 and the first split mold member 9, and is biased in the direction of separating them from each other. In this embodiment, as will be described later, the second mold member 8 and the fixed mold 1 in the cavity 3 are abutted against each other slightly near the tip of the bent portion 42 of the resin molded product 4. That is, the fixed mold 1 and the movable mold 2 are butted against each other at a position shifted from the bulging end (bending protruding end) of the bent portion 42 of the resin molded product 4 toward the tip of the bent portion 42 .

Before explaining the procedure for releasing (taking out) the resin molded product 4, the undercut in this embodiment will be explained. As can be inferred from FIG. 2, the outer part of the bent part 42 (strictly speaking, the curved part) rising upward from the inclined part 41 of the resin molded product 4 is inserted into the fixed mold 1. Therefore, when the movable mold 2 is separated from the fixed mold 1, this intruded portion becomes an undercut in the mold opening/closing direction. In the injection molding mold before this, as shown in FIG. The mold parts were laid out so that they fit together. Therefore, the lowest part of the outer portion of the bent portion 42 becomes a parting line of the mold member, and a parting line has been created at this part. With this conventional mold member configuration, no undercut occurs when the fixed mold 1 and the movable mold 2 are separated.

FIG. 9 is a cross-sectional view of the resin molded product 4 molded with the injection mold of FIG. 8 mounted on a vehicle. In the figure, for example, the resin molded product 4 of FIG. A panel member P made of a steel plate is arranged. This resin molded product 4 is manufactured into a product by being painted, and the painted product 4a is mounted on a vehicle. In the resin molded product 4 (product 4a) molded with the injection mold of FIG. 8, the parting line is located at the arrow part in FIG. As described above, in the colored painted product 4a, the coating film on the parting line becomes thinner, and that part appears (appears) as a black streak, resulting in poor design. Therefore, as shown by the arrow in FIG. 10, the parting line of the resin molded product 4 (product 4a) is set on the panel member P side, that is, near the tip of the bent portion 42, so that it is not visible from the outside and the design is improved. A request arose to secure.

From the above, as clearly shown in FIG. 2, in this embodiment, the abutting portion of the fixed mold 1 and the movable mold 2, specifically the second mold member 8 of the second movable mold part 6, is a resin molded product. The bulging end of the bent portion 42 of No. 4 is changed to be closer to the tip, and as a result, the above-mentioned undercut occurs. Below, a procedure for releasing the resin molded product 4 including undercutting of this portion will be explained. First, from the state shown in FIG. 1, the insertion/extraction member 12 is pulled out to the left in FIG. 1 to create the space 11 above the first split mold member 9 of the second movable mold part 6, as shown in FIG. . Next, with the first split mold member 9, second split mold member 10, and second mold member 8 of the second movable mold part 6 all in contact with each other, the cylinder rod 13a of the hydraulic cylinder 13 is moved upward in FIG. Stretch. As a result, as shown in FIG. 4, the tip extension portion 43 of the bent portion 42 of the resin molded product 4 is sandwiched between the second split mold member 10 and the second mold member 8, and the first mold member 7 and With the bent part 42 held by the second mold member 8, the entire second movable mold part 6 is pushed upward in the figure, that is, into the space 11.

FIG. 5 is a detailed view showing the lower tip of the inclined portion 41 and the bent portion 42 of the resin molded product 4 in the state shown in FIG. As described above, the distal end extension portion 43 of the bent portion 42 is sandwiched between the second split mold member 10 and the second mold member 8, and the entire bent portion 42 is held by the first mold member 7 and the second mold member 8. As shown in FIG. 5, the resin molded product 4 that has been pushed upward is held with the base side of the inclined part 41 held by the first movable mold part 5 and the fixed mold 1, and the tip part side thereof is held upward. Elastically deforms to curve. Along with this, the outer portion of the bent portion 42 of the resin molded product 4 is also lifted upward, a gap is created between it and the fixed mold 1, and there is no undercut in that portion. In this state, as shown in FIG. 6, the movable mold 2 can be separated from the fixed mold 1, and the undercut is processed. Note that the resin molded product 4 remains on the movable mold 2 side because the bent portion 42 is engaged with the movable mold 2.

When the cylinder rod 13a of the hydraulic cylinder 13 is contracted from this state, first, only the second mold member 8 directly connected to the cylinder rod 13a is removed from the first mold member 7 (=first split mold member 9+second mold member 7). The bent portion 42 of the resin molded product 4 formed by the second split mold member 10 and the second mold member 8, especially its tip, is moved downward in FIG. The pinching of the extending portion 43 is released. Thereafter, the spring member 14 interposed between the second mold member 8 and the second split mold member 10 is compressed by a predetermined amount, and the second mold member 8 and the second split mold member 10 are mechanically coupled. Then, delayed by the lowering of the second mold member 8, the second split mold member 10 of the first mold member 7 is also moved downward in FIG. Therefore, this spring member 14 and the mechanical coupling structure between the second split mold member 10 and the second mold member 8 due to the compression of the spring member 14 constitute a delay mechanism.

FIG. 7 is a detailed view showing the lower tip of the inclined portion 41 and the bent portion 42 of the resin molded product 4 in the state shown in FIG. As described above, when the second split member 10 is moved downward, it pushes down the bent portion 42 of the resin molded product 4, especially its tip extension portion 43, and the bent portion 42 is pushed down. The engagement between the inner portion of the first split member 9 and the first split member 9 is released. As a result, the engagement between the resin molded product 4 and the movable mold 2 is completely released, and the resin molded product 4 is released from the mold. In this embodiment, since the first split mold member 9 does not protrude from the inner side of the bent portion 42 of the resin molded product 4, when the second mold member 8 is moved downward by the hydraulic cylinder 13, , the elastic deformation force applied to the resin molded product 4 may be released and the resin molded product 4 may be restored to the removable state shown in FIG. In this embodiment, the second split mold member 10 is pulled down after the second mold member 8, thereby pushing down the tip extension portion 43 of the bent portion 42 of the resin molded product 4, thereby ensuring that the resin molded product 4 is It is designed to be able to be released from the mold.

In order to return this injection mold to the state shown in FIG. 1, the apparatus may be operated in the reverse order of the previous procedure. Incidentally, as described above, in the injection mold returned to the state shown in FIG. 1, there is no movable gap for the mold member within the movable mold 2 before resin injection. In injection molding, resin is injected into the cavity 3 under high pressure, so it is particularly desirable that there be no movement gaps in the movable mold 2 for the mold members constituting it. That is, the movable mold 2 is desired to have high rigidity that can withstand the high pressure of injection molding, but in the injection mold of the embodiment in which there is no movable gap within the movable mold 2, it is difficult to ensure the required rigidity. can.

As described above, in the resin molding mold of the above embodiment, when the insertion/extraction member 12 is removed and there is a space 11 between the second movable mold part 6 and the first movable mold part 5, the space 11 side, that is, the When the second movable mold part 6 approaches the first movable mold part 5 side, the bent part 42 of the resin molded product 4 held in the second movable mold part 6 is moved toward the first movable mold part 5 side, As a result, the portion of the resin molded product 4 including the bent portion 42 is elastically deformed in the inner direction of the bend. Therefore, even if the outer part of the bent part 42 of the resin molded product 4 becomes undercut when the fixed mold 1 and the movable mold 2 are separated, that part can be separated from the fixed mold 1, and the As a result, the fixed mold 1 and the movable mold 2 can be separated by processing the undercut. Furthermore, even when rigidity is required for the movable mold 2 such as during injection molding of resin, by inserting the insertion/extraction member 12 into the space 11, the space between the first movable mold part 5 and the second movable mold part 6 can be increased. There is no movable gap, and the rigidity of the movable mold 2 is ensured.

Further, in a state where there is a space 11 between the first movable mold part 5 and the second movable mold part 6, the first mold member 7 and the second mold member 8 sandwiching the bent part 42 of the resin molded product 4 are inserted. The fixed mold 1 and the movable mold 2 are integrally brought close to the first movable mold part 5 to elastically deform the part including the bent part 42, and in this state, the undercut is processed to separate the fixed mold 1 and the movable mold 2. If the second mold member 8 is separated from the first movable mold part 5 separately from the mold member 7, for example, the elastically deformed portion of the resin molded product 4 including the bent part 42 is restored, and the resin molding is completed. It becomes possible to release the product 4 from the movable mold 2.

Further, when the insertion/removal member 12 is removed and the space 11 exists and the bent part 42 of the injection molded product 4 is sandwiched, the first mold member 7 and the second mold member 8 are integrally attached to the first movable mold part 5. The first mold member 7 and the second mold member 8 are moved in the direction of approaching, that is, into the space 11, and then the first mold member 7 and the second mold member 8 are separately moved in the direction of separating from the first movable mold part 5. Therefore, the first mold member 7 and the second mold member 8 sandwiching the bent portion 42 of the resin molded product 4 are integrally approached toward the first movable mold portion 5, and the portion including the bent portion 42 is elastically deformed. Then, in this state, the undercut is processed to separate the fixed mold 1 and the movable mold 2, and then the second mold member 8 is separated from the first movable mold part 5 separately from the first mold member 7. By doing so, the elastically deformed portion of the resin molded product 4 including the bent portion 42 is restored, and the resin molded product 4 can be released from the movable mold 2.

Further, by adopting a configuration in which the bent portion 42 of the resin molded product 4 is sandwiched between the second split mold member 10 and the second mold member 8, the second mold member 8 is moved to the first movable mold member by the delay mechanism. The second split mold member 10 can be separated from the first movable mold part 5 so as to push out the bent part 42 of the resin molded product 4 from the first split mold member 9 after the second split mold member 10 is separated from the first split mold member 9. This makes it easier to release the resin molded product 4 from the mold.

Although the resin molding die according to the embodiment has been described above, the present invention is not limited to the configuration described in the above embodiment, and various changes can be made within the scope of the gist of the present invention. For example, in the above embodiment, when releasing the resin molded product 4, the second mold member 8 is lowered first, and then the second split mold member 10 is lowered. It may also be configured such that the second split mold member 10 and the second split mold member 10 are lowered at the same time, and then only the second mold member 8 is lowered.

Further, in the above embodiment, the first mold member 7 is divided into the first split mold member 9 and the second split mold member 10, but as described above, when only the second mold member 8 is lowered in advance, In the case where the elastic deformation of the resin molded product 4 can be smoothly restored and the mold can be released, division of the first mold member 7 is not essential.

1 Fixed mold 2 Movable mold 3 Cavity 4 Molded product 5 First movable mold part 6 Second movable mold part 7 First mold member 8 Second mold member 9 First split mold member 10 Second split mold member 11 Space 12 Insertion/extraction member 13 Hydraulic cylinder 14 Spring member 42 Bent part

Claims (3)

An injection mold for molding a resin molded product by injecting resin into a cavity formed between a fixed mold and a movable mold, wherein the resin molded product crosses the mold opening/closing direction of the fixed mold and the movable mold. In an injection molding mold, the fixed mold and the movable mold are butted against each other at a position offset from the bulging end of the bent part of the resin molded product,
The movable type is
a first movable mold part that is moved in a direction toward and away from the fixed mold and is disposed ahead in a bending direction of a bending part of the resin molded product;
a second movable part that is disposed at a position of a bent part of the resin molded product with respect to the first movable mold part, and that is moved toward and away from the first movable mold part while holding the bent part of the resin molded part; The mold part and
It is located between the second movable mold part and the first movable mold part, and is moved in the separation direction by a drive separate from the movement of the first movable mold part, so that the second movable mold part and the first movable mold part An insertion/extraction member inserted into/extracted from the space between the movable mold part ,
The second movable mold part includes a first mold member on the first movable mold part side and a second mold member on the opposite side that sandwich the bent part of the resin molded product from a direction perpendicular to the separating direction. An injection molding mold , characterized in that the first mold member and the second mold member can be separately separated from the first movable mold part . The second movable mold part is
The first mold member and the second mold member integrally move in a direction approaching the first movable mold part in a state where the insertion/removal member is removed and the space exists and the bent part of the resin molded product is sandwiched. 2. The injection mold according to claim 1 , wherein the first mold member and the second mold member are moved separately in a direction away from the first movable mold part. The first mold member is divided into a first split mold member on the side of the first movable mold part and a second split mold member on the opposite side, and the first split mold member and the second split mold member are separate bodies. and moving the second split mold member away from the first movable mold part after the movement of the second mold member away from the first movable mold part. 3. The injection molding mold according to claim 2 , further comprising a delay mechanism.

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