JP2022086066A - Injection mold - Google Patents

Abstract

To suppress the occurrence of molding defects caused by bulging in the molded product during mold release in injection molds.SOLUTION: The first mold set 10 moves relatively to the second mold set 20 in the first direction D1 which is the mold clamping and mold opening direction. The first mold set 10 has: a core section 11 that molds a molded product M, a slide block 12 that moves relatively to the core section 11 in the first direction D1 and molds the molded product M; a slide moving mechanism (angular cam 13) that interlocks with the relative movement of the core section 11 and the slide block 12 in the first direction D1 and moves the slide block 12 in the second direction D2 that intersects the first direction D1; and a locking member 15 which is connected to the core portion 11, interlocks with the relative movement of the core portion 11 and the slide block 12 in the first direction D1, and transitions to the lock position P1 to lock the slide block 12 so that the slide block 12 does not separate from the molded product M in the second direction D2 and the lock release position P2 to unlock the slide block 12.SELECTED DRAWING: Figure 1

Description

The present invention relates to an injection molding die.

Conventionally, injection that moves the slide core held by the movable mold in a direction that intersects the mold opening direction in conjunction with the mold release operation of the molded product that is performed after the mold is opened between the movable mold and the fixed mold. Molding dies have been proposed. In this injection-molded mold, the slide core is locked by a locking block fixed to the fixed mold so as not to be separated from the molded product when the molded product is molded. Therefore, the lock of the locking block is released in conjunction with the mold opening operation. Therefore, first, the lock of the locking block is released in conjunction with the mold opening operation, and the slide core is released from the molded product in conjunction with the subsequent mold release operation. (See, for example, Patent Document 1)

Further, in the injection molding die in which the mold opening operation is performed, the slide core is molded later than the start of the mold opening operation by pressing the lock pin that locks the slide core with the spring member. An injection molding die that is separated from the product has also been proposed (see, for example, Patent Document 2).

Japanese Unexamined Patent Publication No. 2010-110916 Japanese Unexamined Patent Publication No. 2005-262781

As described above, in the injection molding mold in which the locking block is unlocked in conjunction with the mold opening operation and the slide core is released from the molded product in conjunction with the subsequent mold release operation, the slide core is released from the molded product. By unlocking the locking block before molding, the molded product swells toward the slide core side, which tends to cause molding defects. This molding defect is likely to occur especially when the molded product is a thin product.

Further, as described above, when the lock of the slide core by the locking block is released later than the start of the mold opening operation, the slide core is released from the molded product in conjunction with the mold opening operation. Therefore, the slide core cannot be released from the molded product independently of the mold opening operation.

For example, in a movable mold set, when a molded product is molded by a core portion (center core) and a slide block (slide core), when the core portion and the slide block are simultaneously released from the molded product, the mold is released from the core portion. The molded product may become defective due to swelling so as to escape to the slide block side. Molding defects caused by such bulging of the molded product are not limited to the case where the core portion and the slide block are simultaneously released at the time of mold release, but also when the mold opening operation and the mold release operation are linked. Can occur.

An object of the present invention is to provide an injection molding die capable of suppressing the occurrence of molding defects due to swelling of a molded product at the time of mold release.

In one embodiment, the injection mold comprises a first mold set and a second mold set that move relative to the first direction, which is the mold clamping / opening direction, and the first mold set comprises a molded product. The core portion to be molded and the slide block that moves relative to the core portion in the first direction and forms the molded product are interlocked with the relative movement of the core portion and the slide block in the first direction. The slide moving mechanism for moving the slide block in the second direction intersecting the first direction is connected to the core portion and interlocked with the relative movement of the core portion and the slide block in the first direction. It has a lock position for locking the slide block so as not to separate the slide block from the molded product in the second direction, and a lock member for transitioning to an unlocked position for unlocking the slide block. ..

According to the above aspect, it is possible to suppress the occurrence of molding defects due to the bulging of the molded product at the time of mold release.

It is sectional drawing which shows the injection molding mold which concerns on 1st Embodiment. It is an enlarged view of the part II of FIG. It is an enlarged view of the part III of FIG. It is sectional drawing (the 1) for demonstrating the mold release operation in 1st Embodiment. It is sectional drawing (the 2) for demonstrating the mold release operation in 1st Embodiment. It is an enlarged view of the VI part of FIG. FIG. 5 is an enlarged view of part VII of FIG. It is sectional drawing (the 3) for demonstrating the mold release operation in 1st Embodiment. It is sectional drawing which shows a part of the injection molding mold which concerns on 2nd Embodiment. It is sectional drawing which shows a part of the injection molding mold which concerns on 3rd Embodiment.

<First Embodiment>
FIG. 1 is a cross-sectional view showing an injection molding mold 1 according to the first embodiment.

FIG. 2 is an enlarged view of part II of FIG.
FIG. 3 is an enlarged view of part III of FIG.

Note that FIG. 1 shows a mold-clamped state of the injection molding die 1, and the illustration of the resin pressure feeding path to the cavity such as the sprue, the runner, and the gate is omitted.

As shown in FIG. 1, the injection molding mold 1 includes a first mold set 10 and a second mold set 20 that move relative to the first direction D1 which is a mold clamping / mold opening direction. For example, the first type set 10 is a movable type set that moves in the first direction D1, and the second type set 20 is a fixed type set that cannot move in the first direction D1. Both the first type set 10 and the second type set 20 may be a movable type set, or the first type set 10 is a fixed type set and the second type set 20 is a movable type set. May be good.

The first type set 10 includes a core portion 11, a slide block 12, an angular cam 13 which is an example of a slide moving mechanism (angular member), a stripper plate 14, a lock member 15, and a spring which is an example of an elastic body. It has 16 and a protruding shaft 17.

The core portion 11 has a core plate 11a, a center core 11b, and a core fixing plate 11c.

The core plate 11a is fixed to the core fixing plate 11c. The core plate 11a is provided with, for example, two recesses 11a-1 on the core fixing plate 11c side, each of which accommodates a bulge portion 15b described later of the lock member 15.

The center core 11b is fixed to the core plate 11a and projects from the core plate 11a toward the second mold set 20 in the first direction D1. As shown in FIG. 2, which is an enlarged view of part II of FIG. 1, the center core 11b forms, for example, the inner peripheral surface of a cylindrical molded product M at the tip on the second mold set 20 side.

The slide block 12 is arranged between the stripper plate 14 and the second mold set 20, and forms an outer peripheral surface of the molded product M having, for example, an undercut portion. The number of slide blocks 12 is, for example, two (a plurality of examples) divided into two in the circumferential direction of the molded product M. The stripper plate 14 molds a part of the molded product M.

Each of the two slide blocks 12 is provided with an inclined hole 12a into which an inclined portion 13a described later of the angular cam 13 is inserted. The inclined portion 13a and the inclined hole 12a are provided in a direction in which the first direction D1 and the second direction D2 orthogonal to the first direction D1 (an example of intersection) are inclined. That is, the inclined portion 13a is inserted into the inclined hole 12a in a direction in which the inclined portion 13a is inclined in the first direction D1 and the second direction D2. It can be said that the second direction D2 is parallel to the parting plane of the first type set 10 and the second type set 20.

The slide block 12 moves in the first direction D1 together with the stripper plate 14 by moving the stripper plate 14 in the first direction D1 by the protrusion of the protrusion shaft 17 fixed to the stripper plate 14. Therefore, the slide block 12 (and the stripper plate 14) moves relatively to the core portion 11 and the first direction D1.

Each of the two slide blocks 12 is provided with an inclined surface 12b in contact with the inclined surface 15a described later of the lock member 15 at an end portion of the second direction D2 opposite to the molded product M.

The angular cam 13 is an example of a slide movement mechanism that moves the slide block 12 in the second direction D2 in conjunction with the relative movement of the core portion 11 and the slide block 12 in the first direction. The number of angular cams 13 is a number corresponding to the number of slide blocks 12, and is, for example, two (a plurality of examples).

Each of the two angular cams 13 extends in the first direction D1, is fixed to the core portion 11 at one end on the core portion 11 side, and penetrates the stripper plate 14. Further, each of the two angular cams 13 is provided with an inclined portion 13a that is inclined so as to be separated from the molded product M at the other end on the second mold set 20 side. Therefore, when the slide block 12 and the stripper plate 14 move in the first direction D1 relative to the core portion 11, the angular cam 13 slides the slide block 12 along the stripper plate 14 in the second direction D2. .. For example, the slide block 12 is separated from the core portion 11 in the first direction D1 by the stripper plate 14 being projected in the first direction D1 by the protruding shaft 17. As a result, the slide block 12 is separated from the molded product M in the second direction D2. Further, the slide block 12 approaches the molded product M in the second direction D2 by approaching the core portion 11 and the first direction D1. The slide movement mechanism is not limited to the angular cam 13 used together with the stripper plate 14, and the slide block 12 is moved in the second direction D2 in conjunction with the relative movement of the core portion 11 and the slide block 12 in the first direction. Anything that can be moved will do.

The lock member 15 is connected to the core portion 11 so that the slide block 12 does not separate from the molded product M in the second direction D2 in conjunction with the relative movement of the core portion 11 and the slide block 12 in the first direction D1. It transitions to the lock position P1 for locking the slide block 12 and the unlock position P2 for unlocking the slide block 12. The number of lock members 15 is a number corresponding to the number of slide blocks 12, and is, for example, two (a plurality of examples).

The lock member 15 is provided with the above-mentioned inclined surface 15a at one end on the second mold set 20 side in the first direction D1. Further, the lock member 15 penetrates the stripper plate 14 and is provided with, for example, a bulging portion 15b having a large diameter portion at the other end of the core portion 11 side in the first direction D1. The bulging portion 15b is housed in the recess 11a-1 described above. The lock member 15 is located at the lock position P1 in the injection molding mold 1 in the mold clamping state (during molding) shown in FIG. 1, and at this time, the lock member 15 expands as shown in FIG. 3, which is an enlarged view of part III of FIG. The protrusion 15b is located with a gap G between it and the end of the core plate 11a on the second mold set 20 side. Therefore, even if the slide block 12 (and the stripper plate 14) starts to separate from the core portion 11 in the first direction D1, the spring 16 described later urges the slide block 12 (and the stripper plate 14) in the first direction D1 toward the lock position P1. Thereby, the inclined surface 15a continues to be in contact with the inclined surface 12b until the gap G is filled.

The spring 16 is an example of an elastic body located between the core portion 11 and the lock member 15 and urging the lock member 15 in the first direction D1 toward the lock position P1. It is desirable that the spring 16 urges the lock member 15 toward the lock position P1 so that the lock member 15 approaches the slide block 12 in the first direction D1. As a result, the lock member 15 in contact with the inclined surface 12b of the slide block 12 on the inclined surface 15a can press the slide block 12 in the second direction D2 so as to approach the molded product M. Therefore, it is possible to prevent the slide block 12 from being separated from the molded product M in the second direction D2 by the elastic force of the spring 16 when the resin is injected into the cavity. The number of springs 16 is a number corresponding to the number of slide blocks 12 and the number of lock members 15, and is, for example, two (a plurality of examples).

The protrusion shaft 17 is an example of a mold release means (protrusion mechanism) for relatively moving the core portion 11 and the slide block 12 (stripper plate 14) in the first direction D1, and the tip thereof is fixed to the stripper plate 14. The stripper plate 14 and the slide block 12 are moved in the first direction D1. The number of the protruding shafts 17 is, for example, two (a plurality of examples).

Next, the mold release operation in the first embodiment will be described.
4, FIG. 5, and FIG. 8 are cross-sectional views for explaining a mold release operation. In FIGS. 5 and 8, the second type set 20 is not shown.

FIG. 6 is an enlarged view of the VI portion of FIG.
FIG. 7 is an enlarged view of part VII of FIG.

First, as shown in FIG. 4, a mold opening operation is performed so that the first mold set 10 is separated from the second mold set 20 in the first direction D1 by a driving means (not shown). Since the slide block 12, the angular cam 13, and the lock member 15 are arranged in the first mold set 10 as described above, the mold release operation in the first mold set 10 is not performed.

Next, as shown in FIG. 5, the two protruding shafts 17 project the stripper plate 14 in the first direction D1 toward the second mold set 20, so that the slide block 12 and the stripper plate 14 move in the first direction D1. It moves and separates from the core portion 11. As a result, as shown in FIG. 6, which is an enlarged view of the VI portion of FIG. 5, the mold release of the center core 11b from the molded product M is completed. In FIG. 6, the center core 11b does not completely come out from the inside of the molded product M, but the center core 11b has a tapered shape whose diameter decreases toward the molded product M side, so that the inside of the molded product M is formed. The mold release is completed before it completely exits from.

Here, in the lock member 15, the bulging portion 15b is located at the time of molding with a gap G separated from the end portion of the core plate 11a on the second mold set 20 side as described above. Therefore, as shown in FIG. 5 and FIG. 7, which is an enlarged view of the VII portion of FIG. 5, the slide block 12 starts separating from the core portion 11 in the first direction D until the gap G (margin stroke) disappears. The lock member 15 is urged toward the lock position P1 in the first direction D1 by the spring 16 so as to stay at the lock position P1 for a predetermined time. The size of the gap G may be set so that the predetermined time is the time after the time when the mold release of the center core 11b from the molded product M is completed as shown in FIG. However, due to the presence of the gap G in no small measure, the core portion 11 and the slide block 12 start to move relatively in the first direction D1 when the molded product M is released, and then the core portion 11 and the slide block 12 are locked from the lock position P1. The release position P2 transitions. As a result, it is possible to prevent the molded product M released from the core portion 11 from swelling so as to escape to the slide block 12 side.

After that, as shown in FIG. 8, the two protruding shafts 17 further push the stripper plate 14 toward the second mold set 20 in the first direction D1, and after the gap G disappears, the slide block 12 is a lock member. Since the lock member 15 is separated from the core portion 11 and the core portion 11 in the first direction D1, the lock member 15 transitions to the unlock position P2. A gap is provided in the second direction D2 between the inclined portion 13a and the inclined hole 12a. Due to the gap provided in this way, the slide block 12 starts moving so as to be separated from the core portion 11 in the first direction D1, and then the slide block 12 is delayed in the second direction D2. Separate from.

Then, when the angular cam 13 (inclined portion 13a) also exits from the slide block 12 (inclined hole 12a), the movement of the slide block 12 in the second direction D2 also stops. As a result, the molded product M can be taken out from the stripper plate 14.

In the first embodiment described above, the injection molding mold 1 includes a first mold set 10 and a second mold set 20 that move relatively to the first direction D1 which is a mold clamping / mold opening direction. The first type set 10 has a core portion 11, a slide block 12, an angular cam 13 as an example of a slide moving mechanism, and a lock member 15. The core portion 11 molds the molded product M. The slide block 12 moves relative to the core portion 11 in the first direction D1 to form the molded product M. The angular cam 13 moves the slide block 12 to the second direction D2 intersecting the first direction D1 in conjunction with the relative movement of the core portion 11 and the slide block 12 in the first direction D1. The lock member 15 is connected to the core portion 11 so that the slide block 12 does not separate from the molded product M in the second direction D2 in conjunction with the relative movement of the core portion 11 and the slide block 12 in the first direction D1. It transitions to the lock position P1 for locking the slide block 12 and the unlock position P2 for unlocking the slide block 12.

In this way, since the slide block 12 and the lock member 15 are arranged in the common first mold set 10, even if the mold opening operation of the first mold set 10 and the second mold set 20 is performed, the slide block 12 can stay at the position where the molded product M is molded while being locked by the lock member 15. Therefore, as compared with the mode in which the lock is released by the lock member 15 with the mold opening operation, the core portion 11 and the slide block 12 are relatively moved in the first direction D1 to be released in the first mold set 10. It is possible to prevent the molded product M from swelling toward the slide block 12 until the mold is formed. Therefore, according to the first embodiment, it is possible to suppress the occurrence of molding defects due to the bulging of the molded product M at the time of mold release. As will be described later, the lock member 15 locks the slide block 12 even after the mold release of the core portion 11 (center core 11b) from the molded product M is started by using the spring 16 which is an example of the elastic body. By doing so, it is desirable to prevent the molded product M released from the core portion 11 from swelling so as to escape to the slide block 12 side, but even when the arrangement of the spring 16 (elastic body) is omitted, the above-mentioned It is possible to prevent the molded product M from swelling toward the slide block 12 as described above.

Further, in the first embodiment, the first type set 10 further has a stripper plate 14 that moves integrally with the slide block 12 in the first direction D1, and the slide moving mechanism is an angular connected to the core portion 11. It is a cam 13 (an example of an angular member), and the angular cam 13 (inclined portion 13a) penetrates the stripper plate 14 and slide block 12 (inclined hole 12a) in a direction inclined in the first direction D1 and the second direction D2. ), And the slide block 12 is moved to the second direction D2 in conjunction with the relative movement of the core portion 11 and the slide block 12 in the first direction D1.

As a result, with a simple configuration using the stripper plate 14 and the angular cam 13, the slide block 12 is moved to the second direction D2 in conjunction with the relative movement of the first direction D1 between the stripper plate 14 and the core portion 11. Can be moved. Therefore, the injection molding die 1 can be made into a simple structure.

Further, in the first embodiment, the first type set 10 is an elastic body located between the core portion 11 and the lock member 15 and urging the lock member 15 in the first direction D1 toward the lock position P1. Further having a spring 16 as an example, the lock member 15 locks the slide block 12 at the lock position P1 at the time of molding the molded product M, and is urged toward the lock position P1 by the spring 16. When the molded product M is released from the mold, the core portion 11 and the slide block 12 start to move relatively in the first direction D1, and then the lock position P1 shifts to the unlock position P2.

As a result, even after the mold release of the core portion 11 (center core 11b) from the molded product M is started, the lock member 15 locks the slide block 12, so that the molded product M released from the core portion 11 is the slide block 12. It is possible to prevent it from swelling to escape to the side. Therefore, it is possible to further suppress the occurrence of molding defects due to the bulging of the molded product M at the time of mold release.

Further, in the first embodiment, in the angular cam 13, the core portion 11 and the slide block 12 are separated from each other in the first direction D1 so that the slide block 12 is separated from the molded product M in the second direction D2. The spring 16 is moved, and the lock member 15 urges the lock member 15 toward the lock position P1 so that the lock member 15 approaches the slide block 12 in the first direction D1. A predetermined time (for example, until the gap G between the bulging portion 15b and the end of the core plate 11a on the second type set 20 side disappears) after the slide block 12 starts separating in the first direction D1. The spring 16 urges the first direction D1 toward the lock position P1 so as to stay at the lock position P1. Thereby, with a simple configuration using the elastic force (and the gap G) of the spring 16, it is possible to prevent the molded product M released from the core portion 11 from swelling so as to escape to the slide block 12 side.

Further, in the first embodiment, the first type set 10 is a movable type set that moves in the first direction D1. As a result, the mold release means such as the protruding shaft 17 that relatively moves the core portion 11 and the slide block 12 in the first direction D1 is first, together with the driving means that moves the first mold set 10 in the first direction D1. Since it can be arranged on the mold set 10 side, the injection molding mold 1 can have a simple structure.

<Second Embodiment>
FIG. 9 is a cross-sectional view showing the injection molding mold 2 according to the second embodiment.

The injection molding mold 2 according to the second embodiment has an angular pin 31 as an example of the slide moving mechanism (angular member) in place of the angular cam 13 shown in FIG. 1 and the like. Since other matters can be the same as those in the first embodiment described above, detailed description thereof will be omitted.

The first type set 30 shown in FIG. 9 can be the same as the first type set 10 shown in FIG. 1 except that it has an angular pin 31 instead of the angular cam 13. Similar to the angular cam 13 shown in FIG. 1, the angular pin 31 is a slide moving mechanism that moves the slide block 12 in the second direction D2 in conjunction with the relative movement of the core portion 11 and the slide block 12 in the first direction. This is an example. The number of angular pins 31 is a number corresponding to the number of slide blocks 12, and is, for example, two (a plurality of examples).

Each of the two angular pins 31 is fixed to the core portion 11 at one end on the core portion 11 side, extends in a direction inclined in the first direction D1 and the second direction D2, penetrates the stripper plate 14, and has an inclined hole 12a. Will be inserted into. Therefore, when the slide block 12 and the stripper plate 14 move in the first direction D1 relative to the core portion 11, the angular pin 31 slides the slide block 12 along the stripper plate 14 in the second direction D2. ..

Also in the second embodiment described above, the effect of the above-mentioned first embodiment, that is, the effect of suppressing the occurrence of molding defects due to the bulging of the molded product M at the time of mold release can be obtained. Obtainable.

<Third Embodiment>
FIG. 10 is a cross-sectional view showing the injection molding mold 3 according to the third embodiment.

In the injection molding die 3 according to the third embodiment, the lock member 41 also functions as a slide moving mechanism (an angular member such as an angular cam 13 in the first embodiment and an angular pin 31 in the second embodiment). Since other matters can be the same as those in the first embodiment described above, detailed description thereof will be omitted.

The first type set 40 shown in FIG. 10 can be the same as the first type set 10 shown in FIG. 1 except that the locking member 41 is provided in place of the angular cam 13 and the locking member 15.

The lock member 41 is an example of a slide movement mechanism that moves the slide block 12 in the second direction D2 in conjunction with the relative movement of the core portion 11 and the slide block 12 in the first direction.

The lock member 41 has an inclined portion 41a and a bulging portion 41b. The number of lock members 41 is a number corresponding to the number of slide blocks 12, and is, for example, two (a plurality of examples).

Similar to the angular cam 13 shown in FIG. 1, the lock member 41 extends in the first direction D1, penetrates the stripper plate 14, and the inclined portion 41a at the tip thereof is inserted into the inclined hole 12a. The inclined portion 41a is inclined in a direction in which it is inclined in the first direction D1 and the second direction D2 so as to be separated from the molded product M.

Therefore, as the slide block 12 and the stripper plate 14 move in the first direction D1 relative to the core portion 11, the lock member 41 slides the slide block 12 along the stripper plate 14 in the second direction D2. ..

Similar to the lock member 15 shown in FIG. 1, the lock member 41 is connected to the core portion 11, and the slide block 12 is a molded product in conjunction with the relative movement of the core portion 11 and the slide block 12 in the first direction D1. It transitions to a lock position P1 that locks the slide block 12 so as not to separate from M in the second direction D2, and an unlock position (not shown) that unlocks the slide block 12. An inclined surface 41a-1 is provided on the inclined portion 41a of the lock member 41, and the inclined surface 41a-1 comes into contact with the end portion of the inclined hole 12a on the molded product M side at the lock position P1 of the lock member 41. ing.

The lock member 41 is provided with, for example, a bulging portion 41b having a large diameter portion at an end portion on the core portion 11 side in the first direction D1. The bulging portion 41b is housed in the recess 11a-1 of the core plate 11a. The lock member 41 is located at the lock position P1 in the injection molding die 1 in the mold clamping state (during molding) shown in FIG. 10, and at this time, the bulging portion 41b is the end of the core plate 11a on the second mold set 20 side. Positioned with a gap G between the portions, the spring 16 urges the lock member 41 toward the lock position P1 in the first direction D1.

Also in the third embodiment described above, the same effect as that of the above-mentioned first embodiment, that is, the occurrence of molding defects due to the bulging of the molded product M at the time of mold release is suppressed. It is possible to obtain effects such as being able to.

Further, in the third embodiment, the lock member 41 is a slide moving mechanism. That is, the lock member 41 transitions to a lock position P1 for locking the slide block 12 so that the slide block 12 does not separate from the molded product M in the second direction D2, and a lock release position for unlocking the slide block 12. In addition to functioning as a lock member, it functions as a slide movement mechanism that moves the slide block 12 in the second direction D2 in conjunction with the relative movement of the core portion 11 and the slide block 12 in the first direction D1.

As a result, the lock member and the slide moving mechanism can be made into the lock member 41 which is a single component, so that the injection molding die 3 can be made into a simple structure.

1,2,3 Injection molding type 10 1st type set 11 Core part 11a Core plate 11a-1 Recess 11b Center core 11c Core fixing plate 12 Slide block 12a Inclined hole 12b Inclined surface 13 Angular cam 13a Inclined part 14 Stripper plate 15 Lock Member 15a Inclined surface 15b Inclined part 16 Block spring 17 Extruded shaft 20 2nd type set 30 1st type set 31 Angular pin 40 1st type set 41 Lock member 41a Inclined part 41a-1 Inclined surface 41b Extruded part D1 1st 1 direction D2 2nd direction G gap M molded product P1 lock position P2 unlock position

Claims (6)

Equipped with a first mold set and a second mold set that move relatively in the first direction, which is the mold clamping / mold opening direction.
The first type set is
The core part that molds the molded product and
A slide block that moves relative to the core portion in the first direction and forms the molded product.
A slide movement mechanism that moves the slide block in a second direction intersecting the first direction in conjunction with the relative movement of the core portion and the slide block in the first direction.
The slide block is locked to the core portion and linked to the relative movement of the core portion and the slide block in the first direction so that the slide block does not separate from the molded product in the second direction. An injection molding die comprising: a locking position for locking and a locking member transitioning to an unlocking position for unlocking the slide block. The first mold set further comprises a stripper plate that moves integrally with the slide block in the first direction.
The slide moving mechanism is an angular member connected to the core portion, and is an angular member.
The angular member penetrates the stripper plate and is inserted into the slide block in a direction inclined in the first direction and the second direction, and the core portion and the slide block move relative to each other in the first direction. The injection molding die according to claim 1, wherein the slide block is moved in the second direction in conjunction with the above. The first type set further has an elastic body located between the core portion and the lock member and urging the lock member in the first direction toward the lock position.
The lock member locks the slide block at the lock position when the molded product is molded, and is urged toward the lock position by the elastic body, whereby the core portion is formed when the molded product is unmolded. The injection molding mold according to claim 1 or 2, wherein the slide block and the slide block make a transition from the locked position to the unlocked position after the slide block starts to move relatively in the first direction. The slide moving mechanism moves the slide block in the second direction so as to separate the slide block from the molded product by separating the core portion and the slide block in the first direction.
The elastic body urges the lock member toward the lock position so that the lock member approaches the slide block in the first direction.
The lock member is locked in the first direction by the elastic body so as to stay in the lock position for a predetermined time after the core portion and the slide block start to be separated in the first direction at the time of mold release. The injection molding die according to claim 3, wherein the injection molding die is urged toward a position. The injection molding mold according to any one of claims 1 to 4, wherein the first mold set is a movable mold set that moves in the first direction. The injection molding die according to any one of claims 1 to 5, wherein the lock member is the slide moving mechanism.

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