JP2003236893A - Mold for insert molding and insert molding method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To prevent galling between an inserted article arranged on a mold plate and a slide core member, to prevent a burr between the inserted article and the slide core member, and to further prevent occurrence of a fault product by promptly executing necessary modifications in arrangement of the inserted article to the mold without taking extra time, in a mold for insert molding comprising the mold plate on which the inserted article is arranged and the slide core member installed to the mold plate and movable substantially orthogonal to the opening/closing direction of the mold. <P>SOLUTION: The mold for insert molding is provided with the mold plate on which the inserted article is arranged and the slide core member is movably installed substantially orthogonal to the opening/closing direction of the mold plate. At least the inserted article and the slide core member are abutted each other to form a cavity. An inserted article position correction means for correcting the position of the inserted articles at a time of moving the slide core member is installed to the slide core member. <P>COPYRIGHT: (C)2003,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an insert molding die and insert molding method in which a slide core member is provided on a mold plate, and an insert is disposed on the mold plate for molding, and particularly, a slide core. The present invention relates to an insert molding die and an insert molding method for the purpose of preventing galling between a member and an insert.

[0002]

2. Description of the Related Art In a conventional insert molding die using a slide core member, as a means for holding the position of the attached insert, Japanese Patent Laid-Open No. 2000-30157 is known.
The one described in Japanese Patent No. 8 is known. According to the description of this publication, the slide die is divided into upper and lower parts, and a part of the divided die is moved to hold the insert component, and then the die is closed by the entire slide die, so that the insert component and the slide die are not damaged. It is possible to smoothly perform mold closing without giving or dropping the insert parts. However, as shown in FIG. 5b, the invention described in this publication is such that the insert part is held by a part of the slide mold before the mold of the entire slide mold is closed. As described in 12, when attempting to hold the insert part during the mold closing movement of the entire slide mold, there arises a problem such as displacement of the insert part. Therefore, in the invention described in this publication, a step of moving only a part of the split molds in order to hold the insert parts before the entire slide mold is moved is required, which requires extra time.

A conventional insert molding die in which a slide core member is provided on a template has been disclosed in Japanese Patent Laid-Open No. 60-
No. 224514 is known. According to the description in the detailed description of this publication and the description in FIG. 7, the slide core that sandwiches the lower hoop and the upper hoop, which are thin plate inserts, is used as a guide surface (upper mold in FIG. 7) of the upper mold plate when the mold is closed. The inner slanted wall surface portion and the guided surface of the slide core (the slanted wall surface portion on the outer side of the slide core in FIG. 7) are brought into sliding contact with each other, so that the springs (24), (2)
4) and the springs (26) and (26) are respectively contracted, and the slide core is moved in an oblique downward direction in which the mold opening / closing direction and the direction orthogonal to the mold opening / closing direction are combined to form a cavity.

However, in insert molding, it is rare that the thin plate insert is made of a continuous body and is not arranged on the lower mold plate or the like as in the invention described in this publication, and the insert is arranged on the lower mold plate or the like. Most are set up. When the insert is placed on the lower mold plate, etc., it is necessary to place the insert in a short time until the next molding. There may be variations in the height direction. However, in the mold in which the slide core member is moved obliquely downward as in the invention described in this publication, the slide core member is provided with a surface orthogonal to the mold opening / closing direction and disposed on the mold plate. The insert also has a surface contacting the surface of the slide core member,
In the case of a mold having a relationship between the slide core member and the insert such that the surfaces are brought into contact with each other to form a cavity, the insert is positioned in a height direction (horizontally facing the mold) from a predetermined position. In the case where the slide core member is arranged on the template with a shift in the lateral direction), there is a problem that galling may occur between the surface of the slide core member and the surface of the insert.

This point will be described in more detail with reference to FIG. The cross-section shown in FIG. 6 shows a state in which the slide core member 103 and the insert 102, which is displaced in the height direction with respect to the template 101, come into contact with each other, and is indicated by a chain double-dashed line. The symbol “” indicates the state when the slide core member 103 has completed the movement by closing the mold. Slide core member 10
3, a surface 104 indicated by an arrow in a direction orthogonal to the mold closing direction a.
And a surface 105 in the direction orthogonal to the mold closing direction a is provided on the insert 102 arranged on the mold plate 101. In the example of FIG. 6, the guide surface 107 of the upper mold plate 106 and the guided surface 10 of the slide core member 103 are moved as the upper mold plate 106 is moved in the mold closing direction a.
The sliding core member 103 is slidably contacted with the sliding core member 8, and the sliding core member 103 is moved in the obliquely downward direction b indicated by the arrow. At this time, if the insert 102 is displaced from the template 101 in the height direction for some reason, the surface 104 of the slide core member 103 first contacts the surface 105 of the insert 102. The position and the surface 104 and the surface 10 after the slide core member 103 is moved.
The position where 5 abuts is different. Specifically, as shown in FIG. 6, first, a portion indicated by a point 109 on the surface 104 of the slide core member 103 (the point 109 will be described for convenience, but the entire abutting surface 104 corresponds) is an insert. The slide core member 103 is moved diagonally downward b and the insert is moved downward c, but the point 109 of the surface 104 is abutted. The position of the surface 105 of the insert 102 to be contacted changes and eventually the surface 105
To the position indicated by the point 111. Therefore, the portion of the slide core member 103 indicated by the point 109 on the surface 104 is brought into sliding contact with the portion indicated by the point 110 and the portion indicated by the point 111 of the surface 105 of the insert 102, which causes the caulking. It was the cause. Further, if too much clearance is provided between the insert and the surface of the slide core member in order to deal with these above-mentioned galling,
There has been a problem that burrs are generated when the molten resin is injected and filled into the cavity regardless of whether or not the placement position of the insert is displaced.

[0006]

In view of the above-mentioned circumstances, the present invention has a mold plate on which an insert is arranged and a slide which is attached to the mold plate and is movable in a direction orthogonal to the mold opening / closing direction. In an insert-molding die consisting of a core member, at least a surface of the insert and a surface of the slide core member are contacted with each other to form a cavity,
It is possible to prevent galling between the insert and the slide core member arranged on the template. Alternatively, it prevents the occurrence of burrs between the insert and the slide core member. Further, it is an object of the present invention to promptly correct the placement position of the insert on the template without spending extra time and prevent the generation of defective products.

[0007]

According to a first aspect of the present invention, there is provided a mold for insert molding in which a mold plate on which an insert is placed and a mold plate is moved in a direction substantially orthogonal to a mold opening / closing direction. A slide core member that is movably attached is provided, and in a mold for insert molding in which at least the insert and the slide core member are in contact with each other to form a cavity, in the slide core member, when the slide core member moves An insert object position correcting means for correcting the position of the insert object is attached.

Therefore, even if the position where the insert is arranged with respect to the template deviates from the regular position, the insert position correction means attached to the slide core member when the slide core member is moved causes It is possible to quickly correct the installation position without spending extra time, prevent galling between the insert and the slide core member, and prevent defective products from occurring.

The insert molding die of the second aspect of the present invention is the insert molding die of the first aspect, wherein
The insert position correcting means is provided on the slide core members on one side and the other side, and the insert position correcting means has two substantially symmetrical left and right holding surfaces having a flat surface projecting outside and retracting inside. A holding member that is provided on the front end side and that protrudes from the main body surface of the slide core member when the slide core member moves in a direction substantially orthogonal to the mold opening / closing direction, and that is provided so that its position can be changed. Is characterized by.

Therefore, in addition to the first aspect, the position of the insert placed on the template can be corrected without damaging the insert.

The insert molding die according to the third aspect of the present invention is a mold plate on which an insert is arranged, and a slide core member attached to the mold plate and movable in a direction substantially orthogonal to the mold opening / closing direction. In an insert molding die in which at least the insert and the slide core member are in contact with each other to form a cavity, a surface in a direction substantially orthogonal to the mold opening / closing direction is formed. A slide core member, a template on which the insert is disposed so as to have a surface that comes into contact with the surface of the slide core member, and slide core member position adjusting means that makes the slide core member movable in the mold opening / closing direction. The slide core member is moved in the mold closing direction by closing the mold, and the surface of the slide core member and the surface of the insert are brought into contact with each other to form a cavity. And characterized in that made.

Therefore, the slide core member is brought into contact with the surface of the slide core member in a direction substantially orthogonal to the mold opening / closing direction and the surface of the insert provided on the mold plate by closing the slide core member in the mold closing direction. It can be moved and brought into contact, and galling between the insert and the slide core member can be prevented.

The insert molding die according to the fourth aspect of the present invention is the insert molding die according to the third aspect, wherein the slide core member position adjusting means is disposed between the mold plate and the slide core member. It is characterized in that it is composed of a fired projectile.

In addition to the third aspect, the slide core member is movable in the mold opening / closing direction with respect to the mold plate by a simple structure using an elastic body such as a spring, a magnet, and a rubber bag containing gas. It is possible to prevent galling between the insert and the slide core member.

In the insert molding method according to the first aspect of the present invention, the insert is disposed on the mold plate and the slide core member attached to the mold plate is moved in a direction substantially orthogonal to the mold opening / closing direction. In the insert molding method in which at least the insert and the slide core member are brought into contact with each other to form a cavity, and a molten resin is injected and filled into the cavity, the slide core member is molded by a position adjusting means. The surface is formed so as to be movable in the opening / closing direction, and has a surface in a direction substantially orthogonal to the mold opening / closing direction, and a surface that abuts against the surface of the slide core member is also formed in the insert provided on the mold plate. , The slide core member is moved in a direction substantially orthogonal to the mold opening / closing direction, and then the mold is closed to move the slide core member in the mold closing direction. And said surface of said surface and the insert of the member is brought into contact to form a cavity, characterized in that emit the molten resin into the cavity.

Therefore, similarly to the insert molding die of the third aspect, the surface of the slide core member in the direction substantially orthogonal to the mold opening / closing direction and the surface of the insert article arranged on the mold plate are brought into contact with each other. By closing the mold, the slide core member can be moved in the mold closing direction and brought into contact therewith, and galling between the insert and the slide core member can be prevented.

In the insert molding method according to the second aspect of the present invention, the first insert and the second insert are arranged on the template and the slide core member attached to the template is moved in the mold opening / closing direction. By moving in a substantially orthogonal direction, at least the first insert, the second insert,
And an insert molding method in which a cavity is formed by bringing the slide core members into contact with each other, and a molten resin is injected and filled into the cavity, wherein the slide core member is provided movably in a mold opening / closing direction by a position adjusting means. In addition, the first surface in the direction substantially orthogonal to the mold opening / closing direction is formed, and the second surface in the mold opening / closing direction is formed. The first surface of the slide core member that contacts the first surface is formed, and the second insert also has the second surface that contacts the second surface of the slide core member. The formed slide core member was moved in a direction substantially orthogonal to the mold opening / closing direction to bring the second surface of the slide core member into contact with the second surface of the second insert. Afterwards, the slide core is closed by closing the mold Is moved in the mold closing direction, the first surface of the slide core member and the first surface of the first insert are brought into contact with each other to form a cavity, and the molten resin is injected into the cavity. It is characterized by filling.

Therefore, in the insert molding method in which the first insert and the second insert are arranged on the template, it is possible to prevent galling between at least the slide core member and the first insert. It is possible to mold an insert molded product including the first insert and the second insert.

[0019]

DESCRIPTION OF THE PREFERRED EMBODIMENTS FIGS. 1, 2 and 3 are front views of an insert molding die of the present invention, and the right half of each of the drawings is represented by a central cross section. 1 is a diagram showing a state in which the slide core member is moving toward and approaching in a direction orthogonal to the mold opening and closing direction, and FIG. 2 is a diagram showing the slide core member after approaching and moving in a direction orthogonal to the mold opening and closing direction. It is a diagram showing a state in which they are in contact with each other,
FIG. 3 is a view showing a state in which a cavity is formed after the slide core member moves in the mold closing direction. FIG. 4 is a plan view of the insert molding die of the present invention, and the right half shows a state where the slide core members are in contact with each other after the slide core members have moved closer to each other in the direction orthogonal to the mold opening / closing direction, The left half shows a state in which the slide core member is moving closer to the mold opening / closing direction in the direction orthogonal to the mold opening / closing direction. FIG. 5 is an explanatory view of the insert position correcting means of the present invention.

The insert molding die and the insert molding method according to the embodiment of the present invention will be described. A mold plate 1 attached to a stationary plate (not shown) is provided below, and a mold opening / closing means (not shown) is provided above. An upper mold plate (not shown) that is movable in the mold opening / closing direction with respect to the lower mold plate by the mold clamping means is provided. Although an example in which the template 1 is a lower template will be described, it may be one used in a general horizontal injection molding machine, and in that case, the template 1 may be either a fixed mold or a movable mold. A cylindrical core pin 2 is attached to a substantially central portion of the template 1 so as to project upward. On the upper surface of the core pin 2, a first insert A described later is provided.
Is formed on the mounting surface 3, and the mounting surface 3 is formed with a hole 4 in which a second insert B to be described later is arranged.

On one side and the other side of the core pin 2 on the mold plate 1, there are provided slide core members 5 and 5 which are movable in a direction orthogonal to the mold opening / closing direction and whose position can be adjusted also in the mold opening / closing direction. Has been. Explaining the slide core member 5 on one side, both side surfaces of the slide core member 5 are guided by guide wall portions 6 and 6 attached to the template 1.
A guide member 7 projecting toward the slide core member 5 is formed on the upper portion of the guide wall portion 6, and the slide core member 5 is slidably engaged below the guide member 7. In this embodiment, the slide core members 5 and 5 are moved in a direction orthogonal to the mold opening / closing direction, but not only in a completely orthogonal direction but also in a direction substantially orthogonal to the mold opening / closing direction. The slide core member 5 and the direction of the surface of the insert, which will be described later, etc.
As in the case of not being completely orthogonal. The number of slide core members 5 may be one or more, and for example, the four slide core members 5 may be moved from four directions to the center to form the cavity 21.

On the surface 9 of the template 1, holes 10 are provided in two rows in parallel with the moving direction of the slide core member 5 at predetermined intervals. And in the hole 10, a spring 11 which is an elastic body
The bearing portion 12 is fixed to the upper portion of the spring 11, and the ball 13 is rotatably attached to the bearing portion 12. Therefore, the slide core member 5 is restrained from floating upward by the guide member 7 and is restrained from moving downward by the urging force of the spring 11, so that the slide core member 5 is separated from the template 1 by the rotatable ball 13. It is installed so that it can move smoothly in the direction perpendicular to the mold opening and closing direction. Then, when the mold is closed, the surface 8 of the slide core member 5 is interposed by the mold clamping means (not shown) via the upper mold plate.
Is pressed toward the mold plate 1, the spring 11 of the slide core member position adjusting means 14 contracts, the ball 13 is submerged in the mold plate 1, and the back surface 15 of the slide core member 5 and the front surface 9 of the mold plate 1. And are abutted.

In this embodiment, the spring 11 is used as the elastic body used in the slide core member position adjusting means 14, but the spring 11 is not limited to the spring 11, and the same poles of the magnets or the gas may be used. It may be one that utilizes the repulsive force of a rubber bag or the like. Further, the slide core member 5 may be moved in the mold opening / closing direction by an actuator such as an air cylinder, a hydraulic cylinder or a motor. The slide core member position adjusting means 14 may be provided on the slide core member 5.

Brackets 17 are fixed to the side surfaces on one side and the other side of the template 1 with bolts 16, and an air cylinder 18 as a slide core member moving means is attached to the brackets 17. The rear side of the slide core member 5 is engaged with the rod 19 of the air cylinder 18, and the slide core member 5 is attached to the air cylinder 1
8 is provided so as to be movable in a direction orthogonal to the mold opening / closing direction. The rod 19 of the air cylinder 18 and the slide core member 5 are engaged with each other by the bracket 17 on the template 1.
A groove 20 having a T-shape in plan view is formed through the slide core member 5 in the vertical direction so that the slide core member 5 can move also in the mold opening / closing direction with respect to the air cylinder 18 fixed via the. The rod 20 of the air cylinder 18 is attached to the groove 20 so that the tip of the rod 19 is engaged with the groove 20. The slide core member position adjusting means 14 uses other actuators such as hydraulic cylinders and motors, and springs provided on the slide core member and the guide surface of the upper die plate as in the publications described in the section of the prior art. And a guided surface of the slide core member may be combined.

Next, the cavity 21 of the slide core member 5
Before describing the shape and the insert position correcting means 22, the first insert A and the second insert B arranged on the template 1 in this embodiment will be described. The first insert A has a substantially cylindrical shape, and has a hole formed at the center in the axial direction. A step portion A1 is formed inside the hole, and a large diameter portion A2 having a large hole diameter is formed on one side with the step portion A1 as a boundary, and a hole diameter smaller than the large diameter portion A2 is formed on the other side. A small diameter portion A3 is formed. Then, the first insert A is arranged such that the small diameter portion A3 side is up and the step portion A1 is arranged on the mounting portion 3 of the core pin 2. At that time, the first insert A is a cylindrical side surface. A
4 is the surface in the mold opening / closing direction, and the first surface A5 on the upper surface side is
It is arranged on the mold plate 1 so as to be a surface orthogonal to the mold opening / closing direction and to be able to contact the first surface 24 of the slide core member 5 which will be described later in the direction orthogonal to the mold opening / closing direction. And, in the small diameter portion A3 of the hole formed in the first surface A5,
The second insert B described below is inserted.

The second insert B comprises a cylindrical portion B1 and a pin portion B2 attached in the axial direction of the cylindrical portion B1. The second insert B has an axial total length that is longer than the axial total length of the first insert A, and the cylindrical portion B1 has a diameter smaller than the cylindrical diameter of the first insert A. The cylindrical second surface B3 is formed on the side surface of the cylindrical portion B1, and the pin portion side flat surface B4 is formed on the pin portion B2 side of the cylindrical portion B1. Then, the pin portion B2 of the second insert B is inserted into the small diameter portion A3 of the hole of the first insert A provided in the template 1 and is provided in the hole 4 of the core pin 2 of the template 1. . At this time, the second surface B3 of the second insert B becomes a surface in the mold opening / closing direction and is arranged on the mold plate 1 so that it can come into contact with the second surface 27 of the slide core member 5 described later. .

In the present invention, in the insert molding dies of the first and second aspects, the shapes of the first insert A and the template 1 on which the first insert A is arranged are limited. In addition, in the insert molding die of the first to fourth aspects and the insert molding method of the first aspect, the second insert B is not essential. Furthermore, in the insert molding die of the third and fourth aspects and the insert molding method of the first and second aspects, at least a part of the first surface A5 of the first insert A is a slide core. The first insert A may be arranged on the template 1 so as to contact the first surface 24 of the member 5 which is orthogonal to the mold opening / closing direction, and other shapes are not limited. Furthermore, in the insert molding method according to the second aspect, the second insert B is so arranged that at least a part of the second surface B3 contacts the second surface 27 of the slide core member 5 in the mold opening / closing direction. Insert B is template 1
However, other shapes are not limited. Further, two or more second inserts B may be arranged for one first insert A.

The concept of the word "abutment" used in the specification relating to the present invention is not limited to the case where two members are literally in contact with each other, but the cavity 2 is formed by two members.
In the case of forming No. 1, a case is also included in which the molten resin filled in the cavity 21 has a gap to the extent that leakage does not occur and burrs do not occur.

Next, the shape of the slide core member 5 on the front side will be described for one slide core member 5. The front side of the slide core member 5 and the slide core member 5
On the mold plate 1 side, a main body surface 23 that is a first inner peripheral surface is formed as a surface in the mold opening / closing direction. The body surface 23 is formed in a semi-cylindrical shape having a diameter slightly larger than the cylindrical side surface A4 of the first insert A in plan view. A first surface 24, which is fan-shaped in plan view, is formed from the upper side of the main body surface 23 (the side opposite to the mold plate 1) in the direction orthogonal to the mold opening / closing direction and in the diameter reducing direction. Therefore, the first surface 24
Is formed as a surface orthogonal to the mold opening / closing direction.

Further, from the center side of the first surface 24 toward the direction orthogonal to the first surface 24 and toward the upper side of the slide core member 5, it is parallel to the main body surface 23 and the main body A first cavity wall surface 25 that is a semi-cylindrical second inner peripheral surface having a smaller diameter than the surface 23 is formed. Then, the second cavity wall surface 26, which is parallel to the first surface 24 in a direction orthogonal to the first cavity wall surface 25 and is parallel to the first surface 24, and has a fan-like shape in plan view, which has a smaller diameter than the first surface 26.
Are formed.

Further, from the center side of the second cavity wall surface 26 to the direction orthogonal to the second cavity wall surface 26 and toward the surface 8 of the slide core member, and parallel to the first cavity wall surface 25, First cavity wall 2
A second surface 27, which is a semi-cylindrical third inner peripheral surface having a diameter smaller than 5, is formed. Further, the portion of the slide core member 5 other than the front surface on the front side is the other slide core member 5
Is the third surface 28 that is abutted against. A gate portion 29 is formed on the second cavity wall surface 26 of the slide core member 5 on one side from the surface 8 toward the inside of the cavity 21. When the cavity 21 is formed, the second surface 27 is brought into contact with the cylindrical second surface B3 of the second insert B. The first surface 24 of the slide core member 5 is the first surface A5 of the first insert A.
Is contacted with.

Next, the insert position correcting means 22 attached to the slide core member 5 will be described. The body surface 2 on the front side of the slide core members 5 and 5 on one side and the other side.
An insert object position correcting means 3 corrects the installation position of the first insert object A provided on the template 1 to the regular installation position 43 when the entire slide core member 5 is moved toward the slide plate 3. 22 and 22 are provided. The insert position correcting means 22 will be described. The slide core member 5
Inside the main body portion 30 of the recessed portion 3 is formed parallel to the moving direction of the slide core member 5 in the direction orthogonal to the mold opening / closing direction.
1, 31 are drilled. And the recesses 31, 31
The holding member 32 is provided at the position changeable position.
On the tip end side of the holding member 32, a holding surface 33 having a flat (chord) surface protruding on the outside located on the third surface 28 side and recessed on the inside of the cavity center side is provided at two positions with symmetrical angles. It is provided. This is because even if the diameter of the cylindrical side surface A4 of the first insert A varies, the corrected position of the first insert A is corrected to the desired position, and the angle of the flat surface is It is desirable that the first insert A be in contact with the outside as much as possible. These are based on the V-block principle. The holding surface 33 has a circular arc surface 34 formed on the left and right sides and on the outermost tip portion of the holding surface 33. Even if only the leading edge portion of the holding surface 33 contacts the first insert A, The cylindrical side surface A4 of the first insert A is not scratched. On the other hand, the holding member 32 on the side inserted into the recess 31 has recesses 35 and
5 is formed.

On the other hand, in the inside of the main body 30, the recess 3 is formed.
1 and the recess 31 are connected by a gap 36, and the gap 36
Further, a cylindrical recess 37 is formed in the central portion of the so as to face the side opposite to the cavity. The adjusting member 38 is accommodated in the gap 36 between the holding member 32 and the holding member 32, and the convex portions 39, 39 projecting from both sides of the adjusting member 38 are provided in the holding member 32. The recesses 35 and 35 are engaged with each other with a predetermined play. Further, a protrusion 40 is provided at the center of the adjusting member 38, and the protrusion 4
0 is inserted in the recess 37. And the recess 3
A spring 41, which is an elastic body, is inserted in the inside 7. The spring 41 is attached so as to surround the convex portion 40 of the adjusting member 38, one end of which is in contact with the inner portion of the concave portion 37, and the other end is a step portion 42 formed on the convex portion 40 side of the adjusting member 38. Is mounted so as to abut on the slide core member 5, and the spring 41 urges the adjustment member 38 toward the front side of the slide core member 5. Therefore, the holding member 32 engaged with the adjusting member 38
Also, the slide core member 5 is biased by the spring 41 toward the cavity 21 and at least when the slide core member 5 is moved in the direction orthogonal to the mold opening / closing direction.
Is provided so as to project from the main body surface 23. Holding member 3
In the second projecting position, the adjusting member 38 is pressed against the front wall of the gap portion 36 by the biasing force of the spring 41 and the moving position thereof is regulated, and thus the holding member 32 is also maintained at the predetermined projecting position. . When the holding member 32 receives a pressing force against the holding surface 33, the spring 41 is contracted so that the position of the holding member 32 can be adjusted within a predetermined range with respect to the main body surface 23 (in this embodiment, the position can be retracted). It is provided in.

When the slide core members 5, 5 are moved toward the first insert A in the direction orthogonal to the mold opening / closing direction, the holding surface 33 of the insert position correcting means 22 of the slide core member 5 is moved. When any one of them comes into contact with the cylindrical side surface A4 of the first insert A and the slide core members 5 and 5 are still advanced, the holding surface 33 receives a pressing force and the holding member 32 moves in the backward direction. Although it is moved, the holding members 32 and 32 can be individually retracted within a predetermined range by the play between the holding member 32 and the adjusting member 38, and the holding surface 33 of the holding member 32 is slid by the spring 41. It is provided so that it can be retracted to a position along the body surface 23 of the member 5. As a result, even if a part of the first insert A and a part of the main body surface 23 of the slide core member 5 first come into contact with each other, it is possible to prevent the occurrence of galling, and the first insert A is It can be moved to the regular arrangement position 43 on the template 1.

The insert position correcting means 22 is not limited to the above means. For example, in the case of an elastic body, the repulsive force of the same poles of the magnet or the repulsive force of the rubber bag containing gas is used instead of the spring 41. It may be one. Further, the holding member 32 may be moved by an actuator such as an air cylinder, a hydraulic cylinder or a motor. Further, the adjusting member 38 is not essential, but the holding members 32, 32
May be integrally provided. Further, the holding member 32,
Each 32 may have an elastic body attached thereto.
The holding surface 33 of the holding member 32 may have a shape that follows the side shape of the insert, and an elastic body such as rubber may be attached to the holding surface 33. Further, the insert object position correcting means 22 may be provided on the second surface 27 and used for correcting the arrangement position of the second insert object B. Further, a part of the holding member 32 may protrude from the main body surface 23 of the slide core member 5 even after the placement position of the insert is corrected.

Next, a method of molding an insert-molded product using the insert-molding die of the present invention will be described. First, the upper mold plate is lifted by the mold opening / closing means, and the first insert A and the first insert A are attached to the core pin 2 of the mold plate 1 after the separation movement of the slide core member 5 to the one side and the other side by the air cylinders 18, 18 is completed. The second insert B is arranged. Then, the air cylinders 18, 18 are driven to move the entire slide core members 5, 5 which are separated from the mold plate 1 by a predetermined distance in a direction orthogonal to the mold opening / closing direction. Then, when the first insert A is displaced from the regular disposition position 43, holding of the insert position correcting means 22 mounted so as to project from the body surfaces 23 of the slide core members 5 and 5 on both sides. One of the surfaces 33 first comes into contact with the cylindrical side surface A4 of the first insert A arranged on the template 1. At this time, since the holding surface 33 has a shape following the cylindrical side surface A4 of the first insert A, the holding surface 3
By being pressed by 3, the first insert A is moved toward the regular arrangement position 43. After that, as the slide core members 5 and 5 are further moved closer to each other, the other holding surfaces 33 including the holding surface 33 of the insert object position correcting means 22 of the other slide core member 5 are also cylindrical side surfaces A4 of the first insert object A. , And the first insert A is moved to the regular disposition position 43 on the template 1. And after that, the cylindrical side surface A of the first insert A
4, the main body surface 23 of the slide core member 5, 5 is abutted, and the cylindrical second surface B of the second insert B
3 and the second surface 27 of the slide core member 5 are brought into contact with each other.

Next, the upper mold plate is lowered by a mold opening / closing means (not shown) and brought into contact with the surface 8 of the slide core members 5, 5 opposite to the mold plate 1, and further the mold clamping means (not shown). Thus, the upper mold plate and the slide core members 5 and 5 are closed in the mold closing direction. Therefore, until the mold is closed, the slide core members 5 and 5 which were in a predetermined separated state from the mold plate 1 by the spring 11 of the slide core member position adjusting means 14 are moved toward the mold closing direction, and the surface of the mold plate 1 is moved. 9 and the back surface 15 of the slide core member 5 are brought into contact with each other. The movement of the slide core member 5 due to the mold closing causes the first insert A
The first surface A5 of A and the first surface 24 of the slide core member 5 are brought into contact with each other to form the cavity 21. Therefore, even if the first insert A has a deviation in the height direction with respect to the template 1 or a slight deviation in the arranged angle, the first surface 24 of the slide core member 5 presses the The position of the insert A is corrected.

The cavity 21 is composed of the first cavity wall surface 25 and the second cavity wall surface 2 of the slide core member 5.
6, a part of the first surface A5 of the first insert A and a small diameter portion A3 of the hole, a part of the mounting surface 3 of the core pin 2, a part of the pin portion B2 of the second insert B and a pin Part side plane B4
And a part of the second surface B3 of the side surface of the cylindrical portion. The molten resin is injected and filled into the cavity 21 from a gate portion 29 formed on one slide core member 5 by an injection device (not shown). To be done. And cavity 2
When the cooling period of the molten resin filled in 1 elapses, the upper mold plate is moved upward and the slide core member 5
Is separated and moved in a direction orthogonal to the mold opening / closing direction, and the first cavity wall surface 25, the second cavity wall surface 26, and the resin portion of the insert-molded product that is in contact with the wall surfaces are released from the mold. Further, a part of the mounting surface 3 of the core pin 2 and the resin portion of the insert-molded product that is in contact with the mounting surface 3 are released from the protrusion by an ejector device (not shown). Through the above steps, an insert-molded product in which the first insert A and the second insert B are integrated with resin is molded and taken out from the template 1, and the next first insert A is formed. The second insert B and the second insert B are arranged on the template 1 and continuous molding is performed. The insert-molded article of the present invention is not particularly limited in use.

[0039]

In the insert molding die of the present invention, the insert core position correcting means is attached to the slide core member, and the position of the insert core is corrected when the slide core member is moved. Even if the placement position of the insert with respect to the normal position is deviated from the regular placement position, the placement position of the insert can be quickly corrected without extra time when moving the slide core member. It is possible to prevent galling between the slide core member and the slide core member and prevent defective products.

Further, the insert molding die and the insert molding method of the present invention include a slide core member having a surface formed in a direction substantially orthogonal to the mold opening and closing direction, and a surface abutting the surface of the slide core member. And a slide core member position adjusting means for moving the slide core member in the mold opening / closing direction are provided, and the slide core member is moved in the mold closing direction by closing the mold. Since the surface of the slide core member and the surface of the insert are brought into contact with each other to form a cavity, it is possible to surely bring the surfaces into contact with each other without causing galling between the surfaces. it can.

[Brief description of drawings]

FIG. 1 is a view showing a front half of a front view of an insert molding die of the present invention in a central cross section, showing a state where a slide core member is moving toward a direction orthogonal to a mold opening / closing direction. Is.

FIG. 2 is a right half of a front view of a mold for insert molding of the present invention, showing a central cross section, in which the slide core members are moved closer to each other in a direction orthogonal to a mold opening / closing direction. It is a figure which shows the state which contacted.

FIG. 3 is a front half view of a front view of a mold for insert molding of the present invention with a central cross section showing a state in which a cavity is formed after a slide core member moves in a mold closing direction. is there.

FIG. 4 is a plan view of the insert molding die of the present invention, in which the right half shows a state where the slide core members are in contact with each other after the slide core members have moved closer to each other in the direction orthogonal to the mold opening and closing direction; The left half is a view showing a state in which the slide core member is moving toward and away from the mold opening / closing direction in a direction orthogonal to the mold opening / closing direction.

FIG. 5 is an explanatory view of the insert position correcting means of the present invention.

FIG. 6 is an explanatory view showing movement of a slide core member and contact with an insert in a conventional insert molding die.

[Explanation of symbols]

1 ……… Template 2 ……… Core pin 3 ……… Mounting surface 4, 10, ... holes 5 ………… Slide core member 6 ……… Guide wall 7 ………… Guide member 8, 9 ……… Surface 11 ... Spring 12 …… Bearing part 13 …… Ball 14 …… Slide core member position adjusting means 15 …… Back side 16 ... Bolt 17 ... Bracket 18 …… Air cylinder 19 …… Rod 20 ... Groove 21 ... Cavity 22 …… Insert position correction means 23 …… Body surface 24 …… First side 25 …… The first cavity wall 26 …… The second cavity wall 27 …… The second side 28 …… The third side 29 …… Gate section 30 …… Main body 31 …… Recess 32 ... Holding member 33 ... Holding surface 34 ... Arc surface 35, 37 ... Recess 36 …… Gap 38 ... Adjusting member 39, 40 …… Convex part 41 ...... Spring 42 ... Step 43 …… Regular arrangement position A: First insert A1 ... Step A2 …… Large diameter part A3 …… Small diameter part A4 …… Cylinder side A5: First side B: Second insert B1 …… Cylindrical part B2: Pin part B3: Second side B4: Plane on the pin side

   ─────────────────────────────────────────────────── ─── Continued front page    F-term (reference) 4F202 AD35 AM33 AR07 CA11 CB01                       CB12 CB20 CK42 CK52 CK73                       CQ01 CQ07                 4F206 AD35 AM33 AR07 JA07 JB12                       JB20 JF05 JL02 JQ06 JQ81                       JT07

Claims (6)

[Claims] 1. A mold plate on which an insert is disposed, and a slide core member attached to the mold plate and movable in a direction substantially orthogonal to a mold opening / closing direction. At least the insert and the slide core. In an insert molding die in which a member is contacted to form a cavity, the slide core member is provided with insert object position correcting means for correcting the position of the insert object when the slide core member moves. A mold for insert molding. 2. The insert position correcting means is provided on the slide core members on one side and the other side, and has two left and right substantially symmetrical holding surfaces having flat surfaces protruding on the outer side and receding on the inner side on the tip side. A holding member that is provided so as to project from the body surface of the slide core member when the slide core member moves in a direction substantially orthogonal to the mold opening / closing direction, and that is capable of changing its position with respect to the body surface. The mold for insert molding according to claim 1. 3. A mold plate on which an insert is disposed, and a slide core member attached to the mold plate and movable in a direction substantially orthogonal to a mold opening / closing direction. At least the insert and the slide core. In a mold for insert molding in which a member is contacted to form a cavity, a slide core member having a surface in a direction substantially orthogonal to the mold opening / closing direction and a surface contacting the surface of the slide core member are provided. A mold plate on which the insert is arranged, and slide core member position adjusting means for moving the slide core member in the mold opening / closing direction are provided, and the slide core member is moved in the mold closing direction by mold closing. An insert molding die, which is moved to bring the surface of the slide core member into contact with the surface of the insert to form a cavity. 4. The slide core member position adjusting means comprises:
The insert molding die according to claim 3, comprising an elastic body disposed between the template and the slide core member. 5. An insert is arranged on the template,
The slide core member attached to the mold plate is moved in a direction substantially orthogonal to the mold opening / closing direction, at least the insert and the slide core member are brought into contact with each other to form a cavity, and molten resin is injected into the cavity. In the insert molding method for filling, the slide core member is movably provided in the mold opening / closing direction by a position adjusting means, and a surface in a direction substantially orthogonal to the mold opening / closing direction is formed and arranged on the mold plate. A surface that contacts the surface of the slide core member is also formed on the insert, and after the slide core member is moved in a direction substantially orthogonal to the mold opening / closing direction, the slide core member is moved in the mold closing direction by mold closing. Then, the surface of the slide core member and the surface of the insert are brought into contact with each other to form a cavity, and molten resin is filled in the cavity. Insert molding wherein the to and filling. 6. A first insert and a second insert are arranged on a mold plate, and a slide core member attached to the mold plate is moved in a direction substantially orthogonal to a mold opening / closing direction, and at least the first insert member and the second insert member are moved. An insert molding method in which one insert, the second insert, and the slide core member are brought into contact with each other to form a cavity, and a molten resin is injected and filled into the cavity, wherein the slide core member is positionally adjusted. Is provided movably in the mold opening / closing direction by a means, a first surface in a direction substantially orthogonal to the mold opening / closing direction is formed, and a second surface in the mold opening / closing direction is formed, and is disposed on the mold plate. The first insert is also formed with a first surface that is in contact with the first surface of the slide core member, and the second insert also has the second surface of the slide core member. A second surface that is in contact with the surface is formed, and the slide core member is moved in a direction substantially orthogonal to the mold opening / closing direction, and the second surface of the slide core member and the second surface of the second insert After contacting the second surface, the slide core member is moved in the mold closing direction by closing the mold to contact the first surface of the slide core member with the first surface of the first insert. An insert molding method is characterized in that a cavity is formed by allowing the molten resin to be injected and filled into the cavity.