KR101407644B1 - A Mold comprising Separation portion for molding article - Google Patents

Abstract

The present invention provides a mold comprising: a first mold; A take-out core positioned inside a predetermined region of the first mold; A first slide part located in a first inner certain region of the take-out core; And a second slide portion located in an inner second fixed region of the take-out core, one side of which is in contact with the first slide portion and the other side of which is located corresponding to an undercut region of the molded product, Through the second slide part moving in a direction different from the moving direction, even in the case of the article including the undercut, the article can be removed through the mechanical action.

Description

[0001] The present invention relates to a mold comprising a mold release member,

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a mold including a step of removing a molded article, and more particularly to a mold including a step of removing a molded article including an undercut.

Generally, products such as trunn mat, package trim, door trim, and headliner, which are automobile interior materials, are composed of a hard substrate and a soft skin material. In this case, the hard substrate is mainly made of woodstock, resin felt FELT), PP FELT (POLY-PROPYLENE FELT) and PP board (POLY-PROPYLENE BOARD). In recent years, PP (POLY-PROPYLENE) has been replaced with PP .

That is, when the injection liquid is injected into the molding surface between the upper and lower dies by engaging the upper and lower dies, the injection liquid is completely filled along the molding surface to form the molding surface. In this state, After the upper and lower molds are opened and the moldings are removed from the upper and lower molds, the finished product is completed.

However, such an injection product is usually attached to any one of the upper and lower molds after the upper and lower molds are opened. In this case, a vacuum film is formed between the upper and lower molds, and the product does not fall off well.

In order to solve this problem, in the industry using an injection mold, a push pin for pushing the product from the molding surface is installed inside the mold, and the push pin pushes the injection product so that the product is easily removed from the molding surface.

That is, the above-mentioned push pin is a mold which is made by completely opening the upper and lower molds and then attaching the mold from the mold (usually, the lower mold is attached to the upper mold with the push pin attached to the upper mold according to the product specification) It is used to remove an exhibit.

However, such push pin is mainly for removing the product from the mold with the product moving in the vertical direction, and when the product includes the undercut, the push pin moving vertically removes the product from the mold There is a problem that it is difficult.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a mold including a step of removing a molded article including an undercut from the mold.

The objects of the present invention are not limited to the above-mentioned objects, and other objects not mentioned can be clearly understood by those skilled in the art from the following description.

In order to solve the above-mentioned problems, the present invention provides a mold comprising: a first mold; A take-out core positioned inside a predetermined region of the first mold; A first slide part located in a first inner certain region of the take-out core; And a second slide part located in an inner second fixed area of the take-out core, one side of which is in contact with the first slide part and the other side of which is located corresponding to the undercut area of the molded product.

Further, in the present invention, the take-out core forms a part of the first mold, and the shape of the article is also influenced by the shape of the take-out core (30).

Further, the present invention provides a mold further comprising a first moving pin connected to the take-out core and a first supporting plate for supporting the first moving pin.

Further, the present invention may include a second moving pin connected to the first slide portion and a second supporting plate for supporting the second moving pin, and the second supporting plate may be a mold positioned on the upper portion of the first supporting plate, .

Further, in the present invention, the take-out core moves in the first direction in accordance with the movement of the first moving pin, the first slide part moves in the first direction by the movement of the second support plate, Wherein the first slide part moves in the second direction by the movement of the first slide part.

Further, the present invention provides a mold in which a predetermined gap G is maintained between an end of the first slide part and an end of an inner first predetermined area of the take-out core where the first slide part is located.

Further, the present invention is characterized in that the first slide part includes a body part having one side connected to the second slide part and the other side connected to the first support plate, one side of the first slide part including an inclined surface, The inclined surface may include a fastening portion to be fastened to one side of the second slide portion, and the fastening portion may include a fastening protrusion.

According to the present invention, the second slide portion includes a body portion having one side connected to the first slide portion and the other side disposed in a region corresponding to the undercut region of the molded product, and one side of the second slide portion is connected to the engagement groove portion Wherein the fastening groove portion is fastened to the fastening protrusion portion to prevent the second slide portion from being detached from the first slice portion.

Further, the present invention provides a mold in which the second slide part moves along the inclined surface of the first slide part.

According to the present invention as described above, it is possible to detach a product through a mechanical operation even in the case of a product including an undercut through a second slide part moving in a direction different from the moving direction of the first slide part.

In addition, in the present invention, even in the case of a product including an undercut, since the product can be removed through mechanical operation, the removal operation can be performed by the automatic process, and the time required for the operation .

Figs. 1A and 1B are schematic cross-sectional views showing a mold including a general molded article removal. Fig.
2 is a schematic cross-sectional view showing a mold including the removal of a molded article according to the present invention.
FIG. 3A is a schematic perspective view showing a first slide part according to the present invention, and FIG. 3B is a schematic sectional view showing a second slide part according to the present invention.
FIGS. 4A and 4B are schematic cross-sectional views illustrating a process of removing a mold including the removal of a molded article according to the present invention.

BRIEF DESCRIPTION OF THE DRAWINGS The advantages and features of the present invention and the manner of achieving them will become apparent with reference to the embodiments described in detail below with reference to the accompanying drawings. The present invention may, however, be embodied in many different forms and should not be construed as being limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art. Is provided to fully convey the scope of the invention to those skilled in the art, and the invention is only defined by the scope of the claims.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Reference will now be made in detail to the preferred embodiments of the present invention, examples of which are illustrated in the accompanying drawings. &Quot; and / or "include each and every combination of one or more of the mentioned items. ≪ RTI ID = 0.0 >

Although the first, second, etc. are used to describe various components, it goes without saying that these components are not limited by these terms. These terms are used only to distinguish one component from another. Therefore, it goes without saying that the first component mentioned below may be the second component within the technical scope of the present invention.

The terminology used herein is for the purpose of illustrating embodiments and is not intended to be limiting of the present invention. In the present specification, the singular form includes plural forms unless otherwise specified in the specification. The terms " comprises "and / or" comprising "used in the specification do not exclude the presence or addition of one or more other elements in addition to the stated element.

Unless defined otherwise, all terms (including technical and scientific terms) used herein may be used in a sense commonly understood by one of ordinary skill in the art to which this invention belongs. Also, commonly used predefined terms are not ideally or excessively interpreted unless explicitly defined otherwise.

The terms spatially relative, "below", "beneath", "lower", "above", "upper" And can be used to easily describe a correlation between an element and other elements. Spatially relative terms should be understood in terms of the directions shown in the drawings, including the different directions of components at the time of use or operation. For example, when inverting an element shown in the figures, an element described as "below" or "beneath" of another element may be placed "above" another element . Thus, the exemplary term "below" can include both downward and upward directions. The components can also be oriented in different directions, so that spatially relative terms can be interpreted according to orientation.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

Figs. 1A and 1B are schematic cross-sectional views showing a mold including a general molded article removal. Fig.

First, referring to FIG. 1A, a mold 10 including a general molded article removal may include a first mold 20 and a second mold (not shown).

Here, for convenience of explanation, the second mold is not shown, but the mold of the present invention may include a general mold configuration.

For example, when the mold of the present invention is an injection mold, an injection liquid may be injected through an injection liquid nozzle in a state where the injection mold (20) and the injection mold (not shown) Since this can be the same as a general injection mold, a detailed description will be omitted.

Hereinafter, the mold will be described as an injection mold, but the present invention does not limit the types of the mold.

1A, a molded article, that is, a finished product 50, is injection-molded on the upper side of the first mold 20 by injecting the injection liquid through the injection liquid nozzle.

That is, as described above, the injection liquid can be injection-molded by injecting the injection liquid through the injection liquid nozzle while the one injection mold 20 and the injection mold (not shown) opposite to each other are meshed with each other. It is assumed that the article 50 is attached to the side of the first mold 20, which is the one-side injection mold, with the mold 20 and the injection mold (not shown) opposite to the mold 20 fully opened.

1A, the injection mold 10 may include a take-out core 30 located inside a predetermined region of the first mold 20 and constituting a part of the first mold 20 have.

As shown in FIG. 1A, the take-out core 30 is positioned inside a predetermined region of the first metal mold 20 to form a part of the first metal mold. Depending on the shape of the take-out core 30, The shape of the contact portion 50 can be influenced.

Here, the term " core "is used in the present invention because the shape of the article can be influenced by the shape of the core.

Further, the take-out core 30 can be removed from the first mold 20 in addition to determining the shape of the finished product when injecting the injection liquid, so the term "taken out" .

That is, the take-out core 30 not only determines the shape of the injection product when injection liquid is injected but also can remove the injection product from the first mold by moving the take-out core.

1A, the injection mold 10 includes a vertical movement pin 31 connected to the extraction core for movement of the extraction core, and a support plate (not shown) for supporting the vertical movement pin 32).

That is, the vertical movement pin 31 can be vertically moved by the movement of the support plate 32, and the extraction core 30 connected to the vertical movement pin 31 is vertically moved according to the movement of the vertical movement pin .

Although not shown in the drawing, the cylinder may include a cylinder (not shown) for moving the support plate. The cylinder may be a hydraulic cylinder or a pneumatic cylinder. However, in the present invention, It does not limit the means.

That is, the support plate can be moved by the force provided by the cylinder, and the vertical movement pin can be vertically moved by the movement of the support plate.

Meanwhile, the reference numeral 40 may be a base plate, and the support plate 32 may be positioned above the base plate 40. [

However, since the base plate is not necessarily required in the present invention, a detailed description thereof will be omitted.

Next, referring to FIG. 1B, the support plate 32 is vertically moved to remove the article 50 attached to the first mold 20, which is a one-side injection mold, as shown in FIG. 1A .

The takeout core 30 is vertically moved by the vertical movement of the support plate 32 and the molded article attached to a certain region of the takeout core 30, .

That is, as the article 50 is vertically moved together with the take-out core 30, the article 50 is removed from the first die 20.

However, as shown in Figs. 1A and 1B, when the article 50 includes the undercut region A, the undercut region is caught in a certain region of the core, so that the article can not be removed.

Therefore, as shown in FIG. 1B, in the case of a product including an undercut region, manual removal by a worker is inevitably required to remove it from the injection mold.

That is, in order to remove an article containing an undercut area, the operator has to stop the process and manually perform the detach operation. Further, for this reason, automation of the manufacture of the article becomes difficult.

In the case of a product that does not include an undercut area, an automated process is used to manufacture the product. However, in the case of the product including the undercut area, the automatic process is performed It is a trend that can not be done.

Therefore, there is a need for an injection mold capable of removing an article containing an undercut region by a mechanical automation process.

2 is a schematic cross-sectional view showing a mold including the removal of a molded article according to the present invention.

Referring to FIG. 2, the mold 100 including the step of removing a molded article according to the present invention may include a first mold 200 and a second mold (not shown).

Here, for convenience of explanation, the second mold is not shown, but the mold of the present invention may include a general mold configuration.

For example, when the mold of the present invention is an injection mold, the injection liquid may be injected through the injection liquid nozzle in a state where the injection mold 200 and the injection mold (not shown) Since this can be the same as a general injection mold, a detailed description will be omitted.

Hereinafter, the mold will be described as an injection mold, but the present invention does not limit the types of the mold.

Referring to FIG. 2, a molded article, that is, an article of manufacture 500 is injection-molded on the upper side of the first mold 200 by injecting the injection liquid through the injection liquid nozzle.

That is, as described above, the injection liquid can be injection-molded by injecting the injection liquid through the injection liquid nozzle while the one injection mold 200 and the injection mold (not shown) opposite to the injection mold 200 are meshed with each other. It is assumed that the article 500 is attached to the side of the first mold 200, which is the one injection mold, while the mold 200 and the injection mold (not shown) opposite to the injection mold are completely opened.

In this case, when the second mold is applied to a product to which an article is applied, for example, an automobile interior material, the second mold may be a mold positioned on the surface of the article exposed to the outside, It may be a mold located opposite the surface of the entry.

2, the injection mold 100 may include a take-out core 300 located inside a predetermined region of the first mold 200 and forming a part of the first mold 200 have.

2, the take-out core 300 is located inside a predetermined region of the first mold 200 and forms a part of the first mold. Depending on the shape of the take-out core 300, The shape of the substrate 500 can be influenced.

Here, the term " core "is used in the present invention because the shape of the article can be influenced by the shape of the core.

The take-out core 300 also uses the term "take-out" because it can remove the projected article 500 from the first mold 200 in addition to determining the shape of the projected article upon injection of the injection liquid .

That is, the take-out core 300 not only determines the shape of the injection product when injection liquid is injected, but also can remove the injection product from the first mold by moving the extraction core.

2, the injection mold 100 includes a first transfer pin 360 connected to the take-out core for transferring the take-out core, and the first transfer pin 360 is connected to the take- (Not shown).

That is, the first moving pin 360 can be moved by the movement of the first supporting plate 330, and the take-out core 300 connected to the first moving pin 360 can move the first moving pin 360 In the first direction.

Hereinafter, for the sake of convenience, the first moving pin 360 is defined as a first vertical moving pin, but the present invention is not limited thereto.

That is, although the first moving pin 360 is shown as being vertically moved in FIG. 4A to be described later, when the entirety of FIG. 4A is rotated by 90 degrees, it can be understood that the first moving pin 360 moves horizontally Therefore, the present invention is not limited to the above-described "vertical ", but for convenience of description, the first moving pin 360 is defined as a first vertical moving pin.

In this case, although not shown, the cylinder may include a cylinder (not shown) for moving the first support plate, and the cylinder may be a hydraulic cylinder or a pneumatic cylinder. However, The present invention is not limited to the means for moving the light source.

That is, the first support plate can be moved by the force provided by the cylinder, and the first vertical movement pin can move in the first direction by the movement of the first support plate.

Meanwhile, the reference numeral 400 may be a base plate, and the first support plate 330 may be positioned above the base plate 400.

However, since the base plate is not necessarily required in the present invention, a detailed description thereof will be omitted.

2, the injection mold 100 according to the present invention includes a first slide part 340 positioned in a first inner certain region of the take-out core 300, and the first slide part 340 And a second moving pin 310 connected to the first slide part 340 for movement of the first slide part 340.

Since the second moving pin 310 moves in the same direction as the first moving pin 360 and corresponds to a moving pin different from the first moving pin, Terms were used.

The injection mold 100 according to the present invention includes a second support plate 320 that supports the second moving pin 310 and the second support plate 320 supports the first support plate 330 ). ≪ / RTI >

That is, the second moving pin 310 can be moved by the movement of the second supporting plate 320, and the first sliding part 340 connected to the second moving pin 310 can move to the second moving pin 310, The movable member 310 can move in the first direction.

As described above, the take-out core can move in the first direction by the first moving pin, and the first slide part can move in the same first direction as the take-out core by the second moving pin.

Hereinafter, for convenience of description, the second moving pin 310 is defined as a second vertical moving pin. However, the present invention is not limited to the "vertical" This is the same as the above-described first moving pin, and a detailed description of the reason will be omitted below.

In this case, although not shown in the figure, the cylinder may include a cylinder (not shown) for moving the second support plate, and the cylinder may be a hydraulic cylinder or a pneumatic cylinder. However, The present invention is not limited to the means for moving the light source.

That is, the second support plate can be moved by the force provided by the cylinder, and the first slide can be moved in the first direction by the movement of the second support plate.

2, the injection mold 100 according to the present invention is positioned in a second fixed region on the inner side of the take-out core 300, one side of which contacts the first slide portion, and the other side of the injection mold 100 And the second slide part 350 corresponding to the undercut area A of the second slide part 350. [

The second slide part 350 can be moved in the second direction by the movement of the first slide part 340.

That is, a force due to the movement of the first slide portion in the first direction is transmitted to the second slide portion, and the second slide portion can move in the second direction. At this time, the first direction and the second direction are different from each other Direction, the terms "first" and "second" are used.

2, a predetermined gap G is maintained between the end of the first slide part 340 and the end of the first inner certain region of the take-out core 300 where the first slide part is located .

The predetermined gap G is an interval for the movement of the first slide part, which will be described later.

Hereinafter, the first slide portion and the second slide portion will be described.

FIG. 3A is a schematic perspective view showing a first slide part according to the present invention, and FIG. 3B is a schematic sectional view showing a second slide part according to the present invention.

3A, one side 345 of the first slide part 340 is connected to the second slide part, and the other side 346 of the first slide part 340 is connected to the first support plate 330, (341).

One side 345 of the first slide part 340 includes a slant surface 342 and the slant surface 342 includes a fastening part 343 fastened to one side of the second slide part.

The fastening portion 343 includes a fastening protrusion 344 and the fastening protrusion 344 is fastened to a fastening groove portion of a second slide portion to be described later so as to prevent the second slide portion from being separated from the first slide portion. have.

That is, the fastening groove portion of the second slide portion, which will be described later, is fastened to the fastening protrusion portion 344 of the first slide portion 340, and the second slide portion can move along the inclined surface of the first slide portion.

3B, the second slide part 350 according to the present invention has one side 353 connected to the first slide part and the other side 352 connected to an area corresponding to the undercut area of the article And a body portion 351 positioned thereon.

At this time, one side 353 of the second slide part 350 includes a fastening groove part 354, and as described above, the fastening groove part 354 of the second slide part is fastened to the fastening protrusion part of the first slide part 350 So that the second slide portion can be prevented from being detached from the first slide portion.

Hereinafter, a method for removing a molded product of a mold according to the present invention will be described with reference to FIGS. 4A and 4B.

FIGS. 4A and 4B are schematic cross-sectional views illustrating a process of removing a mold including the removal of a molded article according to the present invention.

Referring to FIG. 4A, first, the first support plate 330 is moved in the first direction to remove the article 500 attached to the first mold 200, which is a one-side injection mold.

At this time, as described above, the first support plate can be moved through the cylinder.

As the first supporting plate 330 moves in the first direction, the first moving pin 360 moves in the first direction and the take-out core 300 connected to the first moving pin 360 moves in the first direction, And moves in the first direction as the first moving pin 360 moves.

As the core is moved, the molded article 500 attached to a certain region of the take-out core 300 moves simultaneously, and the molded article 500 is removed from the first mold 200.

However, as shown in FIG. 4A, when the article 500 includes the undercut region A, the undercut region is caught in a certain region of the take-out core, so that the article can not be removed.

At this time, the second supporting plate 320 located at the upper portion of the first supporting plate is simultaneously moved by the force of the first supporting plate 330 moving in the first direction.

In this case, since the second support plate is moved by the moving force of the first support plate, the distance that the second support plate moves is equal to the distance that the first support plate moves, And the first slide part 340 are equal to each other, the constant gap G as shown in FIG. 2 is still maintained in the state of FIG. 4A.

4B, after the molded product 500 is removed from the first mold 200, the movement of the first support plate 330 is stopped and the second support plate 340 is moved.

The movement of the second support plate in the above-described FIG. 4A is the movement by the moving force of the first support plate, but the movement of the second support plate in FIG. 4B is moved through the cylinder.

The movement of the second support plate 320 allows the first slide 340 to move in the first direction.

At this time, the movement of the first slide part 340 is performed by moving the first slide part 340 and the second slide part 340 between the end of the first slide part 340 and the end of the first inner certain area of the take- Can be made within the gap G.

Meanwhile, the second slide unit 350 can move in the second direction by the movement of the first slide unit 340.

That is, a force due to the movement of the first slide portion in the first direction is transmitted to the second slide portion, and the second slide portion can move in the second direction. At this time, the first direction and the second direction are different from each other Direction, the terms "first" and "second" are used.

The reason why the first slide part and the second slide part move in different directions is that the slope is located on one side of the first slide part.

One side 345 of the first slide part 340 includes an inclined surface 342. The inclined surface 342 includes a fastening part and is fastened to one side of the second slide part, The first slide part and the second slide part move in different directions because the second slide part coupled with the slope surface moves along the sloped surface of the first slide part.

At this time, since the other side of the second slide part is located in the area corresponding to the undercut area A of the print product 500, the other side of the second slide part 350 moving in the second direction is the undercut area A I will push it.

On the other hand, the return of the first slide part 340 and the take-out core 300 to the original state can be performed by the opposite operation as described above. That is, by the return of the second support plate by the cylinder, And the take-out core can be returned by the return of the first support plate by the cylinder.

At this time, the return of the second slide part 350 is prevented by the engagement protrusion part 344 of the first slide part 340 being engaged with the engagement groove part of the second slide part to prevent the second slide part from being separated from the first slide part Therefore, the return of the first slide portion can be made to return to the second slide portion.

As described above, in the present invention, even in the case of the article including the undercut, the article can be removed through the mechanical operation through the second slide part moving in the direction different from the moving direction of the first slide part.

In addition, in the present invention, even in the case of a product including an undercut, since the product can be removed through mechanical operation, the removal operation can be performed by the automatic process, and the time required for the operation .

While the present invention has been described in connection with what is presently considered to be practical exemplary embodiments, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, It will be understood. It is therefore to be understood that the above-described embodiments are illustrative in all aspects and not restrictive.

100: mold 200: first mold
300: extraction core 310: second moving pin
320: second support plate 330: first support plate
340: first slide part 350: second slide part
360: first moving pin 400: base plate
500: Products

Claims (9)

A first mold;
A take-out core positioned inside a predetermined region of the first mold;
A first slide part located in a first inner certain region of the take-out core; And
And a second slide portion located in an inner second second region of the take-out core, one side of which is in contact with the first slide portion and the other side of which is located in correspondence with an undercut region of the molded product,
Wherein a predetermined gap (G) is maintained between an end of the first slide part and an end of an inner first predetermined area of the take-out core where the first slide part is located. The method according to claim 1,
Wherein the take-out core forms a part of the first mold, and the shape of the article to be inspected depends on the shape of the take-out core (30). The method according to claim 1,
A first moving pin connected to the take-out core, and a first supporting plate for supporting the first moving pin. The method of claim 3,
A second moving pin connected to the first slide portion, and a second supporting plate for supporting the second moving pin,
And the second support plate is located on top of the first support plate. 5. The method of claim 4,
The take-out core moves in a first direction in accordance with the movement of the first moving pin, the first slide part moves in a first direction by the movement of the second support plate, and the second slide part moves in the first direction And moves in a second direction by a negative movement. delete The method of claim 3,
Wherein the first slide portion includes a body portion having one side connected to the second slide portion and the other side connected to the first support plate,
Wherein one side of the first slide portion includes an inclined surface,
Wherein the inclined surface includes a fastening portion that is fastened to one side of the second slide portion,
Wherein the fastening portion includes a fastening protrusion. 8. The method of claim 7,
Wherein the second slide portion includes a body portion having one side connected to the first slide portion and the other side positioned in a region corresponding to an undercut region of the molded product,
One side of the second slide part includes a fastening groove part,
Wherein the fastening groove portion is fastened to the fastening protrusion portion to prevent the second slide portion from being detached from the first slice portion. 8. The method of claim 7,
And the second slide part moves along the inclined surface of the first slide part.

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