JP2003053793A - Slide for injection mold - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a slide capable of corresponding to the injection molding of a plurality of products by preliminarily providing a plurality of slide piece attaching positions, and an injection mold equipped with the slide. SOLUTION: The slide 48b is provided to the injection mold equipped with a fixed mold and a movable mold constituted in a movable manner, so as to be joined to the fixed mold and having a cavity formed by joining the fixed mold and the movable mold to manufacture a product having a shape corresponding to a cavity shape by injecting a molten material in the cavity. The slide 48b is movable with respect to the cavity and provided with a plurality of attaching holes 484 for attaching slide pieces S arranged at predetermined positions in the cavity at the time of joining.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a slide for an injection molding die, and more particularly to a slide to which a slide piece is attached and an injection molding die having such a slide.

[0002]

2. Description of the Related Art In injection molding for molding a material by mass-producing a product, a mold provided with a fixed mold and a movable mold configured to be movable with respect to the fixed mold is generally used. The molten material is injected and hardened in the cavity that is the space formed between the two molds in the state where the mold and the moving mold are joined, and then both molds are separated to correspond to the cavity shape molded in the cavity. You are taking out the product.

When a molded product having a boss hole, an undercut portion, etc. is manufactured by injection molding, the boss hole portion, the undercut portion, etc. are separated from the movable mold and the fixed mold after injection molding, or separated from the mold. Since it interferes with product removal, it is placed in the cavity during injection of the molten material to form boss holes and undercut portions, and it is withdrawn from the cavity after the molten material is cured to separate the mold and the product. Use slide pieces that can be removed.

Such movement of the slide piece, that is, movement / arrangement in the cavity and withdrawal from the cavity have been performed by a slide mechanism using an angular pin or the like. Since such a slide mechanism mechanically converts the movement of the movable die with respect to the fixed die to the movement of the slide piece, the opening / closing speed of the movable die and the fixed die is shortened in order to shorten the time required for one cycle of injection molding. However, when the value is increased, the mechanical load applied to the slide mechanism increases rapidly, and the life of the slide mechanism is shortened. Therefore, a slide that extends along the cavity and can move (separate and approach) with respect to the cavity is provided, a slide piece is attached to this slide, and this slide is independent of opening and closing of the mold by a drive mechanism such as a hydraulic cylinder. Then, a slide mechanism has been proposed which moves the tip of the slide piece into and out of the cavity by moving the slide piece with respect to the cavity.

[0005]

Since the position of the slide piece with respect to the cavity differs depending on the type of product to be molded, the mounting position of the slide piece on the slide also differs depending on the type of product. Therefore, in order to mount the slide piece at a predetermined position, it is necessary to process the slide for each product, which increases the cost and time required for producing the mold.

The present invention has been made in view of the above circumstances, and by providing a plurality of slide piece mounting positions in advance, a slide that can be used for injection molding of a plurality of products, or It is an object to provide an injection molding die provided with such a slide.

[0007]

According to the present invention, a fixed die and a movable die configured to be movable so as to be joined to the fixed die are provided, and the fixed die and the movable die are joined together. A slide used for an injection mold for producing a product having a shape corresponding to the shape of a cavity by forming a cavity by the method and injecting a molten material into the cavity, the slide being movable with respect to the cavity, There is provided a slide having a plurality of mounting holes for mounting a slide piece arranged at a predetermined position in the cavity at the time of the joining.

According to the slide having such a structure, since a plurality of mounting holes provided in advance provide a plurality of mounting positions for the slide piece, it is possible to perform a plurality of different positions without processing. A slide piece can be attached to.

According to a preferred aspect of the present invention, the plurality of mounting holes are formed so as to have a length substantially equal to a portion where the cavity of the fixed mold or the movable mold is formed. With such a configuration, the range in which the slide piece can be attached is widened, and the versatility of the slide is expanded.

According to another preferred aspect of the present invention, the mounting holes are arranged at substantially regular intervals.

According to another preferred aspect of the present invention, the interval between the mounting holes is set smaller than the width of the slide piece to be mounted. According to such a configuration, the tip portion of the slide piece can be arranged at any position in the length direction of the slide, that is, at any position of the cabinet, and the versatility of the slide becomes extremely high.

According to another preferred aspect of the present invention, the mounting hole is a screw hole having a thread formed on an inner peripheral surface thereof. According to this structure, by providing the slide piece with the screw hole, the slide piece can be easily attached to the slide by screwing.
Also, the slides can be reused.

According to another preferred aspect of the present invention, it is provided with a connecting portion connected to a driving mechanism for moving the slide with respect to the cavity. Further, this connecting portion is preferably a groove portion that opens downward. According to such a configuration, the slide can be easily coupled to the drive mechanism by providing the protrusion that can be engaged with the groove on the drive mechanism side.

According to another aspect of the present invention, a cavity is provided by including a stationary die and a movable die configured to be movable so as to be joined to the stationary die, and by joining the stationary die and the movable die. A mold for injection molding for producing a product having a shape corresponding to the shape of the cavity by injecting a molten material into the cavity.
A movable slide piece arranged at a predetermined position in the cavity, and a slide having a plurality of mounting holes for mounting the slide pieces formed therein, and the slide piece moving the attached slide piece in the cavity direction. An injection molding die is provided which is characterized by being provided.

According to the injection molding die having the above-mentioned structure, since a plurality of mounting positions for the slide piece are provided by the plurality of mounting holes provided in advance in the slide piece, processing is performed. Without, the slide pieces can be attached at a plurality of different positions.

[0016]

BEST MODE FOR CARRYING OUT THE INVENTION An injection molding die 10 according to a preferred embodiment of the present invention will be described in detail below with reference to the drawings. FIG. 1 is a schematic perspective view showing an injection molding die 10 in a mold open state, and FIG. 2 is a schematic perspective view of the injection molding die 10 in a mold clamping state.

As shown in FIGS. 1 and 2, the injection mold 10 comprises a fixed mold 12 and a movable mold 14. These fixed mold 12 and movable mold 14 have a mold open position (FIG. 1) in which they are separated from each other and a mold clamping position (FIG. 2) in which they are joined to form a cavity corresponding to the product shape. It is mounted on an injection molding machine (not shown) so that it can move between them. Injection mold 10
The injection molding is performed by injecting the molten resin material into the cavity formed between the fixed mold 12 and the movable mold 14 at the mold clamping position, similarly to the known injection molding mold, and then, The movable mold 14 is moved (opened) to the position shown in FIG. 2 so that the cured product is removed from the mold.

Next, the structure of the fixed die 12 will be described. Figure 3
FIG. 4 is a perspective view of the fixed mold 12 in the mold open state, and FIG. 4 is a perspective view of the fixed mold 12 in the mold clamped state. It should be noted that in FIGS. 3 and 4, the fixed mold 12 is shown in an upside down state from the state shown in FIGS. 1 and 2.
For the sake of clarity, in the drawings of the present application, the shapes of fine parts such as the concavo-convex shape forming the cavity and the tip shape of the slide piece are appropriately simplified.

As shown in FIGS. 3 and 4, the fixed die 12 includes a base plate 16 having a substantially rectangular shape.
Near the four corners of the base plate 16, a substantially cylindrical guide bush 18 is attached. Further, in the central region of the base plate 16, a fixed-side cassette mold 20 that is detachable in a cassette manner is arranged.

FIG. 5 is a perspective view showing a schematic structure of the fixed-side cassette mold 20. As shown in FIG. 5, the fixed-side cassette mold 20 includes a substantially rectangular fixed-type cassette mounting plate 22 and a cabinet block 24 arranged at a substantially central position on the fixed-type cassette mounting plate 22. ing.

The cabinet block 24 is a main part of a mold that forms a cavity together with a core block, which will be described later,
It is made of a metal material suitable for the mold. Further, the cabinet block 24 is, for example, cut based on the shape data of the product manufactured by injection molding, and the unevenness corresponding to the product shape is formed on the surface thereof. In the present embodiment, the injection-molding die 10 is a die for injection-molding the front side portion of the body of the mobile phone, and as shown by the dotted lines in FIGS. Concavities and convexities corresponding to the body shape of the mobile phone are formed on the surface.

Fixed-side cassette-side slides (slides) 26a, 26b, 26c, and 26d are arranged on the outer sides of the four sides of the cabinet block 24, respectively. The cassette side slide 26a and the like are used for the cab block 2
4 is a rod-shaped member extending along one side, and a groove portion 27 opening downward is formed at an outer position.

These cassette side slides 26a, 26
b, 26c, and 26d are the cabinet blocks 24, respectively.
Are arranged so as to extend in parallel along each side of the. Also, cassette side slides 26a, 26b, 26c, 26
d is a direction orthogonal to each side of the cabinet block 24, respectively, and a retracted position (FIG. 3) away from the cabinet block 24 while maintaining a parallel state with each side of the cabinet block 24, and It is configured to be able to reciprocate between an approaching position (FIG. 4) approaching.

Each cassette side slide 26a, 26b, 2
6c and 26d slide on slide guides 28a, 28b, 28c and 28d attached to the fixed type cassette attachment plate 22 at the outer peripheral position of the cabinet block 24, and thereby the retracted position (FIG. 3) and the approach position (FIG. 3). 4) It is configured to be able to move to and from.

Cassette side slides 26a, 26b, 26
A slide piece (side core) S for forming an undercut portion, a boss hole, etc. on c and 26d as required.
Are attached by one or more screws. The slide piece (side core) S has a tip having a shape corresponding to an undercut portion, a boss hole, etc. to be formed, and at the time of die bonding, at least the tip portion is arranged at a predetermined position in the cavity, It is configured to form an undercut portion, a boss hole, etc. in the molded product. In this embodiment, all the slide pieces of the fixed die 12 that are moved from the outside of the cavity toward the inside of the cavity at the time of joining are the cassette side slides 26a, 26b, 26c, 26.
It is connected to d. Depending on the shape of the molded product, the slide 26 on the cassette side to which the slide piece cannot be attached
There may be a, 26b, 26c, 26.

Cassette side slides 26a, 26b, 26
c, 26d and the slide pieces attached thereto are cassette side slides 26a, 26b, 26c, 26.
When d is in the approaching position, the slide piece is arranged in the cavity forming the undercut portion, the boss hole and the like in the injection molded product, and the cassette side slides 26a, 26
When b, 26c and 26d are in the retracted position, the slide piece is retracted to a position where the mold can be opened and the injection molded product can be removed from the mold.

Further, guide pins 30 having a substantially cylindrical shape are attached near the four corners of the fixed type cassette attachment plate 22. Further, a plurality of mounting holes 32 for mounting the cab block to the fixed cassette mounting plate 22 and the like are provided in the peripheral portion of the cab block 24.

As shown in FIG. 3 and FIG. 4, base side slides (slides) 34a, 34b for the fixed die are provided around the fixed side cassette die 20 of the fixed die 12.
34c and 34d are movably attached. The base-side slides 34a, 34b, 34c, and 34d are the cassette-side slides 26 of the fixed-side cassette mold 20, respectively.
It is configured to correspond to a, 26b, 26c, and 26d. Base side slides 34a, 34b, 34c, 3
4d are cassette side slides 26a and 26, respectively.
The protrusions have a length substantially equal to that of b, 26c, and 26d, and have a shape that meshes with grooves formed in the cassette-side slides 26a, 26b, 26c, and 26d.

When the cassette mold 20 is attached to the base plate 16 side, the base side slides 34a, 34b, 34 are formed.
The protrusions of c and 34d are the cassette side slides 26a and 2d.
6b, 26c, 26d in the groove portion, respectively,
Engage, cassette side slides 26a, 26b, 26c,
26d respectively include base side slides 34a, 34
It comes to move integrally with each of b, 34c, and 34d.

Further, base side slides 34a, 34
The locking blocks 35a, 34c, 34d are provided behind the locking cassettes 35a,
35b, 35c, 35d are attached. These locking blocks 35a, 35b, 35c, 35d
Engages with the base-side slides on the movable die 14 side during mold clamping, and blocks the movement of these slides in the direction away from the cavity.

Hydraulic cylinder units 36 shown by dotted lines are attached to the outer surface of each side of the base plate 16. The rod of each cylinder unit 36 extends into the base plate 16 through rod holes 16a (only two are shown) provided in the base plate 16 in a direction orthogonal to each side of the cabinet block 24, and slides on the base side 34a, 34a.
It is connected to b, 34c, and 34d. With this configuration, as the rod of the hydraulic cylinder expands and contracts, the base-side slides 34a, 34b, 34c, and 34d move in a direction orthogonal to each side of the cabinet block 24.
The hydraulic cylinder 36 is connected to a control device (not shown) of the injection molding machine, and its operation is controlled by this control device.

As described above, in the present embodiment, the base side slides 34a,
34b, 34c, 34d, the cassette side slides 26a, 26b, 26c, 26d engaged with them, and the cassette side slides 26a, 26b, 26c, 2
The slide piece attached to 6d can be moved from the retracted position to the approach position as shown by the arrow A in FIG. 3 and from the approach position to the retracted position as shown by the arrow B in FIG. It is configured.

In this embodiment, each hydraulic cylinder 36 is
Since it operates completely independently of the movement of other hydraulic cylinders and the movement of the movable die 14, the base side slides 34a, 3
4b, 34c, 34d, cassette side slides 26a, 2
6b, 26c, 26d, further, the slide piece is the movement of another slide piece and the movement of the movable die 14, that is,
Clamping / mold opening operation (opening / closing operation) of the injection molding die 10
Moved, completely independent of.

Next, the structure of the movable die 14 will be described. Figure 6
Is a perspective view of the movable die 14 in the mold open state, and FIG. 7 is a perspective view of the movable die 14 in the mold clamped state. As shown in FIGS. 6 and 7, the movable die 14 includes a base plate 38 having a substantially rectangular shape. Guide pins 40 are attached near the four corners of the base plate 38 at positions corresponding to the fixed, substantially cylindrical guide bushes 18. Also,
In the center area of the base plate 38, a movable cassette die 42 that can be detached in a cassette manner is arranged.

FIG. 8 is a perspective view showing a schematic structure of the moving-side cassette mold 42. As shown in FIG. 8, the moving-side cassette mold 42 includes a substantially rectangular receiving plate 44.
And a core block 46 arranged at a substantially central position on the receiving plate 44.

The core block 46 is a main part of a mold which is joined to the above-mentioned cabinet block 24 and forms a cavity which is a molding space, and is made of a metal material suitable for the mold. Further, the core block 46 is, for example, cut based on the shape data of the product manufactured by injection molding, and unevenness corresponding to the product shape is formed on the surface thereof. In this embodiment, the injection-molding die 10 is a die for injection-molding the front side portion of the body of the mobile phone, and as shown by the dotted lines in FIGS. Concavities and convexities corresponding to the body shape of the mobile phone are formed on the surface.

Movable cassette side slides 48a, 48b, 48c and 48d are arranged at the outer positions of the four sides of the cabinet block 46, respectively. The slide 48a on the cassette side is the core block 46.
Is a rod-shaped member that extends along one side of the groove, and has a groove portion 49 that opens downward at the outer position.

These cassette side slides 48a, 48
b, 48c, and 48d are arranged so as to extend in parallel along each side of the core block 46. Also, cassette side slides 48a, 48b, 48c, 48
d is a direction orthogonal to each side of the core block 46, and a retracted position (FIG. 6) separated from the core block 46 while maintaining a parallel state with each side of the core block 46.
It is configured to be movable between an approach position (FIG. 7) approaching the core block 46.

Each cassette side slide 48a, 48b, 4
8 c and 48 d are slide guides 50 a, 50 b and 5 attached to the receiving plate 44 at the outer peripheral position of the core block 46.
By sliding on 0c and 50d, it is possible to move between the retracted position (FIG. 6) and the approach position (FIG. 7).

Cassette side slides 48a, 48b, 48
One or more slide pieces S for forming an undercut portion, a boss hole and the like are attached to the c and 48d by screws or the like, if necessary. In the present embodiment, all slide pieces of the movable die 14 which are moved from the outside of the cavity toward the inside of the cavity at the time of joining are connected to the cassette side slides 48a, 48b, 48c and 48d. Depending on the shape of the molded product, the slides 46a, 46 on the cassette side to which the slide pieces cannot be attached are attached.
b, 46c, 46d may be present.

Cassette side slides 48a, 48b, 48
c, 48d and the slide pieces attached thereto are cassette side slides 48a, 48b, 48c, 48.
When d is in the approaching position, the slide piece is arranged in the cavity forming the undercut portion, the boss hole and the like in the injection molded product, and the cassette side slide 48a,
The slide pieces are configured to be retracted to a position where the mold can be opened and the injection molded product can be removed from the mold when 48b, 48c and 48d are in the retracted position.

Further, near the four corners of the receiving plate 44, guide bushes 52 for accommodating the guide pins 30 of the stationary cassette mold are attached. Further, the core block 46
A plurality of attachment holes 54 for attaching the core block 46 to the receiving plate 44 and the like are provided in the peripheral edge portion of the.

The moving side cassette mold 42 has an ejector guide pin 55 for guiding an ejector pin (not shown) for pushing out a cured molded product, an ejector plate 56 for guiding and supporting the ejector guide pin 55, and And an ejector support plate 58. When the injection molding is completed, the ejector plate 56 receives the receiving plate 4
4 toward the core block 46
An ejector pin is protruded from an ejector hole (not shown) formed in the core block 46 to cure the cured molded product.
It is configured to be removed from.

As shown in FIG. 6 and FIG. 7, the base side slides 60a, 60b, 60c, 60 for the movable die are provided around the movable side cassette die 42 of the movable die 14.
d is movably attached. Base side slide 6
0a, 60b, 60c, and 60d are cassette-side slides 48a and 48b of the moving-side cassette mold 42, respectively.
It is configured to correspond to 48c and 48d. The base side slides 60a, 60b, 60c, 60d are respectively cassette side slides 48a, 48b, 48c,
It has a length almost equal to 48d, and the cassette side slide 4
8a, 48b, 48c and 48d are provided with protrusions having a shape that meshes with the groove 49.

When the moving side cassette mold 42 is attached to the base plate 38 side, the base side slides 60a, 60b,
60c, 60d are cassette side slides 48a, 48
The cassette side slides 48a, 48b, 48 are engaged with the groove portions 49 formed in the b, 48c, 48d, respectively.
c and 48d are base side slides 60a and 6d, respectively.
It becomes possible to move integrally with each of 0b, 60c, and 60d.

Further, the base side slides 60a, 60
Locking blocks 62a, 60c, and 60d are provided at the rear side, that is, at the position opposite to the moving side cassette mold 42.
62b, 62c and 62d are attached. These locking blocks 62a, 62b, 62c, 62d
Is the base side slide 34 of the fixed mold 12 when the mold is clamped.
a, 34b, 34c, 34d to engage with the base slides 34a, 34b, 3 in the direction away from the cavity.
Block the movements of 4c and 34d.

Hydraulic cylinder units 64 indicated by dotted lines are attached to the outer surface of each side of the base plate 38. The rod of each cylinder unit 64 extends into the base plate 38 in the direction orthogonal to each side of the core block 46 through the rod holes 38a (only two are shown) provided in the base plate 38, and the base side slides 60a and 60b. ,
It is connected to 60c and 60d. With this configuration, as the rod of the hydraulic cylinder expands and contracts, the base side slides 60a, 60b, 60c, and 60d move to the core block
Will move in a direction orthogonal to each side of. The hydraulic cylinder 64 is connected to a control device (not shown) of the injection molding machine, and its operation is controlled by this control device.

As described above, in this embodiment, the base side slides 60a, 60b, 6 are moved by the hydraulic cylinder 64.
0c, 60d, the cassette side slides 48a, 48b, 48c, 48d engaged therewith, and the slide pieces attached to the cassette side slides 48a, 48b, 48c, 48d are indicated by arrow C in FIG. Thus, it is configured to be moved from the retracted position to the approaching position and from the approaching position to the retracted position as indicated by arrow D in FIG.

In this embodiment, each hydraulic cylinder 64 is
Since it operates completely independently of the movements of the other hydraulic cylinders and the movement of the movable die 14, the base side slides 60a, 6
0b, 60c, 60d, cassette side slides 48a, 4
8b, 48c, 48d, further, the slide piece is the movement of other slide pieces and the movement of the movable die 14, that is,
The injection mold 10 can be moved completely independently of the mold clamping and mold opening (opening / closing) operations.

Next, the structure of the slide of this embodiment will be described in detail with reference to FIG. FIG. 9 shows a slide 48b which is a movable cassette side slide, a slide piece S and a core block 46 attached to this slide.
It is a perspective view which shows the relationship with. In FIG. 9, the slide 48b and the slide piece S are in the retracted position. In FIG. 9, the other slides 48a and the like are omitted for clarity. In addition, a cassette side slide 48 for another mobile type
a, 48c, 48d, and cassette side slides (slides) 26a, 26b, 26c, 26d for fixed molds
Although not described, the slide 48b has the same structure.

As shown in FIG. 9, the cassette-side slide 48b is an elongated member having a step-like upper surface, and a rectangular upper step portion 480 connected to a vertical wall.
And a lower portion 482. The lower part 482 is
A plurality of screw holes (mounting holes) 484 for mounting the slide pieces are formed along the longitudinal direction. Screw hole 484
Has a female screw portion formed on the inner peripheral surface thereof, and is arranged in two rows at substantially equal intervals over the entire length of the slide 48b in the longitudinal direction.

On the other hand, the slide piece S attached to the cassette side slide 48b has a pair of through holes 486, 486 formed side by side in the longitudinal direction.
The distance between the through holes 486 and 486 is the slide 4 on the cassette side.
The distance between the rows of the screw holes 484 of 8b is set to be substantially equal. In the present embodiment, the two screws 488 are inserted through the through holes 486 and the screw holes 48 of the cassette-side slide 48b.
The slide piece S is fixed on the lower stage portion 482 of the cassette slide 48b by screwing the slide piece S4.

In this embodiment, the distance between the screw holes 484 in the longitudinal direction is set to 8 mm, and the width of the slide piece S is 15 mm.
It is set to mm or more. Therefore, by appropriately setting the width position of the core portion S1 at the tip of the slide piece S on the slide piece S, the core portion S1 can be arranged at an arbitrary position in the longitudinal direction of the core block 46. Become.
As a result, the cassette-side slide 46b can be used in injection molding any product as long as the core blocks 46 have the same length.

Further, according to the mold having such a structure,
It is also possible to share the parts other than the cabinet block 24 and the core block 46, and it is also possible to make only these two blocks into a cassette.

Next, referring to FIGS. 10 to 13, the movements of the slide pieces and the like in the injection molding die 10 will be specifically described. 9 to 12 are schematic cross-sectional views of the fixed mold and the movable-side cassette molds 20 and 42.

FIG. 10 is a schematic cross-sectional view of the fixed mold and movable cassette molds 20 and 42 which are in a joined state after injection molding is completed. In this state, the fixed mold 12 and the movable mold 14 are completely joined (FIG. 2), and the resin injected into the cavity (space) corresponding to the product shape formed between the cabinet block 24 and the core block 46. Is a molded product P. In the injection molding die 10, when performing mold clamping, all the slide pieces are shown in FIG. 2 by the cassette side slides 26 and 48, the base side slide, and the hydraulic cylinder independently of the movement of the movable die. Place it in the approach position as shown.

When the molded product P is cured, all the slide pieces are returned to the retracted position by the hydraulic cylinders, before the movable mold 14 is separated from the fixed mold 12, that is, before the mold is opened (FIG. 11). Speed, amount of slide slide backward,
Also, the timing can be freely set for each hydraulic cylinder.

When the slide piece retracts, the movable die 14 is moved in the direction of arrow E to separate it from the fixed die 12,
The mold is opened (Fig. 12).

Finally, the molded product P is ejected by an ejector pin (not shown) and removed from the core block (FIG. 13). In the illustrated example, the undercut portion formed inside the molded product P is configured to be pulled out by the inclined pin P that moves inward.

The present invention is not limited to the above-mentioned embodiments, and various changes and modifications can be made within the scope of the matters described in the claims.

In the above-mentioned embodiment, the slide piece mounting holes formed in the slide 48b and the like are the screw holes formed with the female screw on the inner peripheral surface and arranged at regular intervals.
A mounting hole without threads may be used. In this case, the slide piece is attached to the slide by a pin or the like. Further, the distance between the mounting holes is not limited to the value of 8 mm in the above-mentioned embodiment, and it is not always necessary to arrange the holes at a constant distance.

In the above embodiment, the slide 48b, which is a slide, is provided with the groove portion provided at the outer position, but such a groove portion is not essential to the present invention.

Further, in the above embodiment, the cassette side slides 48a, 48b, 48c and 48d for the movable type and the cassette side slides (slides) 26 for the fixed type.
Although all of a, 26b, 26c, and 26d have mounting holes similar to the slide 48b of FIG. 9, the present invention is not limited to this, and at least one slide has mounting holes. Anything is acceptable.

Further, the slide and injection molding die of the present invention is applicable not only to a die for injection molding using a resin such as plastic, but also to a die for injection molding using another material such as metal. To be done.

[0065]

According to the present invention, there is provided a slide that can be used for injection molding of a plurality of products, or an injection molding die provided with such a slide.

[Brief description of drawings]

1 is a schematic perspective view showing an injection mold according to an embodiment of the present invention in a mold open state,

FIG. 2 is a schematic perspective view of an injection mold according to an embodiment of the present invention in a mold clamped state.

FIG. 3 is a perspective view of a fixed mold in a mold open state.

FIG. 4 is a perspective view of a fixed mold in a mold clamped state.

FIG. 5 is a perspective view showing a schematic configuration of a fixed-side cassette mold.

FIG. 6 is a perspective view of a movable mold in a mold open state.

FIG. 7 is a perspective view of the movable mold in a mold clamped state.

FIG. 8 is a perspective view showing a schematic configuration of a moving-side cassette mold.

FIG. 9 is a schematic perspective view showing a relationship between a cassette side slide, a slide piece, and a core block.

FIG. 10 is a cross-sectional view illustrating movement of a slide piece or the like in the injection molding die according to the embodiment of the present invention.

FIG. 11 is a cross-sectional view illustrating the movement of a slide piece or the like in the injection molding die according to the embodiment of the present invention.

FIG. 12 is a cross-sectional view illustrating the movement of a slide piece or the like in the injection molding die according to the embodiment of the present invention.

FIG. 13 is a cross-sectional view illustrating movement of a slide piece or the like in the injection molding die according to the embodiment of the present invention.

[Explanation of symbols]

10: Mold for injection molding 12: Fixed type 14: Mobile 20: Fixed-side cassette mold (cabinet) 26a, 26b, 26c, 26d: cassette side slide 34a, 34b, 34c, 34d: Base side slide 36: Hydraulic cylinder unit 42: Moving side cassette mold (core) 46: Core block 48a, 48b, 48c, 48d: cassette side slide 60a, 60b, 60c, 60d: Base side slide 64: Hydraulic cylinder unit 480: Upper part 482: Lower part 484: Screw hole (mounting hole) 486: Through hole

Claims (8)

[Claims] 1. A fixed die and a movable die configured to be movable so as to be joined to the fixed die, wherein a cavity is formed by joining the fixed die and the movable die, and the cavity is formed in the cavity. A slide for an injection molding die for manufacturing a product having a shape corresponding to a cavity shape by injecting a molten material, the slide being movable with respect to the cavity, and arranged at a predetermined position in the cavity at the time of the joining. A slide having a plurality of mounting holes for mounting a slide piece to be mounted. 2. The slide according to claim 1, which has a length substantially equal to a portion where the fixed or movable cavity is formed, and the plurality of mounting holes are formed over the entire length. 3. The slide according to claim 1, wherein the mounting holes are arranged at substantially regular intervals. 4. The slide according to claim 1, wherein an interval between the attachment holes is set to be smaller than a width of a slide piece to be attached. 5. The slide according to claim 1, wherein the mounting hole is a screw hole having a screw thread formed on an inner peripheral surface thereof. 6. The slide according to claim 1, further comprising a connecting portion connected to a drive mechanism that moves the slide with respect to the cavity. 7. The slide according to claim 6, wherein the connecting portion is a groove portion that opens downward. 8. A fixed die and a movable die configured to be movable so as to be joined to the fixed die, wherein a cavity is formed by joining the fixed die and the movable die, and inside the cavity. An injection molding die for manufacturing a product having a shape corresponding to a cavity shape by injecting a molten material, the movable slide piece being arranged at a predetermined position in the cavity at the time of joining, and the slide. A mold for injection molding, comprising: a plurality of mounting holes for mounting the top, and a slide for moving the mounted slide top in the cavity direction.