KR200405280Y1 - Injection Dia and Mold System for Preventing Slide Core Mis-assembling - Google Patents

Abstract

The present invention relates to an injection mold structure having a slide core misassembly prevention function, and more particularly, an angular pin (5) is provided on the upper plate (3), a plurality of depressions of the lower plate ( In the injection mold structure in which a plurality of slide cores 20 and 30 having different design portions are provided at 12 and 14, respectively, at least one of the plurality of depressions is provided with a protrusion 13 and the plurality of slide cores. At least one of which has a passage-shaped groove 22 corresponding to the protrusion 13 on the bottom surface thereof; Injection recess with a slide core misassembly prevention function, characterized in that the depression 12 formed with the projection 13 is configured to be equipped with a slide core formed with a passage-shaped groove 22 corresponding to the projection 13 It relates to a mold structure.

Injection mold structure, products, slide core, upper plate, lower plate

Description

Injection mold structure with slide core misassembly prevention {Injection Dia and Mold System for Preventing Slide Core Mis-assembling}

1 is an injection molded product having different design parts of the prior art,

Figure 2a is a front view showing the lower plate and the slide core of the injection mold structure with a slide core misassembly prevention function according to the present invention,

Figure 2b is a front view of a state in which the slide core is removed from the injection mold structure of Figure 2a,

2C is an enlarged view of a portion A of FIG. 2A;

2D is an enlarged view of a portion B of FIG. 2B;

3A is a perspective view of a slide core and guide piece coupling structure;

3B is a side view of the slide core and guide piece coupling structure;

4a is a slide core front perspective view,

4b shows a slide core back perspective view;

5 is a perspective view of a guide piece;

Figure 6 is an exploded view of the injection mold structure with a slide core misassembly prevention function according to an embodiment of the present invention.

[Explanation of symbols on the main parts of the drawings]

3: Senate 5: Angular Pin

7: product 10: lower plate

12: first depression 13: projection

14: second depression 20: the first slide core

21: main body 22: passage groove

24: lower guide 26: pin guide hole

28: upper body part 30: second slide core

40: guide part 42: guide part

44: bolt hole

The present invention relates to an injection mold structure, and more particularly, in order to prevent the slide cores having different design portions from being misassembled, grooves are formed in the bottom surface of the slide core and protrusions are formed on a portion of the template portion on which the slide core is mounted. The injection mold structure provided with the slide core misassembly prevention function formed.

The injection mold structure largely consists of the upper plate, the lower plate, and the slide core. Here, the upper plate and the lower plate are also referred to as a movable plate, a stationary plate, an upper core, and a lower core, but basically refer to one of two corresponding molds for injection molding.

The slide core is formed in an injection molding apparatus in order to form various designs on the side of the injection molded product (Registration Utility Model Publication 20-0171018) or to facilitate the ejection of the injection molded product (Registration Utility Model 20-0342755). Used as an element.

As above, the slide core may be used to form a design such as, for example, a symbol, a character, or a figure on the side of an injection product. For example, when different designs are formed in the first design section 8 and the second design section 9 of the product 7 as shown in FIG. 1, two slide cores with different designs imprinted thereon. In other words, a first slide core having a first design portion and a second slide core having a second design portion are required. At this time, if the shape (or size, size) except for the design portion of the first slide core and the second slide core is the same, the assembly position of the slide core is inverted by mistake of the operator may be mounted on the template. If the work proceeds in this state, the second design is formed in the first design portion in the product and the first design is formed in the second design portion, which causes a fatal problem that a defective product whose design is changed is produced.

An object of the present invention is to fundamentally prevent misassembly of a plurality of slide cores during operation by forming grooves in some slide cores and forming protrusions in a recess of a template on which the slide cores are mounted in an injection mold structure in which a plurality of slide cores are installed. This is to provide an injection mold structure equipped with a slide core misassembly prevention function that can be prevented.

Hereinafter, with reference to the accompanying drawings, preferred embodiments will be described with respect to the configuration of the invention so that those skilled in the art can easily implement the present invention.

In the injection mold structure having the slide core misassembly prevention function according to an embodiment of the present invention, the angular pin 5 is installed on the upper plate 3, and the plurality of recesses 12 of the lower plate 10 are provided. In the injection mold structure in which a plurality of slide cores 20 and 30 each having a different design portion are provided in 14), at least one of the plurality of depressions has a protrusion 13 formed therein and at least one of the plurality of slide cores. Is formed in the bottom surface of the passage groove 22 corresponding to the projection 13, the recessed portion 12 is formed in the projection 13 is a passage groove 22 corresponding to the projection 13 Characterized in that the formed slide core is mounted.

Figure 2a is a front view showing the lower plate and the slide core of the injection mold structure with a slide core misassembly prevention function according to the present invention, Figure 2b is a front view in which the slide core is removed from the injection mold structure of Figure 2a. Figure 6 is an exploded view of the injection mold structure with a slide core misassembly prevention function.

First, the injection mold structure according to the embodiment of the present invention has an angular pin 5 installed on the upper plate 3, as shown in FIG. Also, as shown in FIGS. 2A and 2B, the two recesses 12 and 14 of the lower plate 10 having the product molded part 17 have two slide cores 20 and 30 having different design parts. Are respectively installed.

Unlike the drawings showing the device according to an embodiment of the present invention, the number of depressions and slide cores in the present invention is arbitrarily determined according to the shape of the product required. Considering the shape of the product substantially produced in the art, the number is preferably two to four and even more preferably two.

In the present invention, the upper plate and the lower plate are intended to randomly designate one of two corresponding mold plates in the injection device, and there is no distinction according to the injection position of the injection material or the size of the movement amount during the operation. That is, the lower house and upper house are used to mean one of two templates. In addition, in the present invention, the lower plate is made of a single mold plate made of several components (for example, the lower plate '62, the legs 64, the tight plate 65, the fixing plate 66, as shown in Figure 6) In this case, a component having a mold in which a product is directly formed (for example, the lower plate 62 in FIG. 6) will be referred to.

In the present invention, the upper plate is directly formed products when the mold plate is made of a number of components (for example, the upper plate '72, the runner plate plate 75, the upper fixing plate 76 as shown in Figure 6) It is assumed that a component having a mold (for example, the upper plate '72 in FIG. 6).

As shown in FIG. 2B, one of the two depressions is formed with a projection 13 and the other has no projection.

3A is a perspective view of the slide core and guide piece coupling structure, FIG. 3B is a side view of the slide core and guide piece coupling structure, FIG. 4A is a front view of the slide core, and FIG. 4B is a rear perspective view of the slide core.

As shown in Figs. 3a to 4b, at least one of the two slide cores is formed with a passage groove 22 corresponding to the protrusion 13 in the bottom surface, the other does not have a passage groove.

The structure of the slide core will be described in detail with reference to FIGS. 3A, 3B, 4A, and 4B. The slide core 20 includes a main body portion 21 having a pin guide hole 26 into which the angular pin 5 is inserted, a lower guide 24 extending from both sides of the lower portion of the body portion 21, and a main body portion 21. The upper body portion 28 is disposed on the upper side opposite the pin guide hole and has a design portion 23.

This slide core 20 is configured to slide at a position designated by two guide pieces. The guide piece is attached to the lower plate 10 by the bolt 45. 5 is a perspective view of the guide piece, the guide piece 40 has a bolt hole 44 and the guide portion 42 into which the bolt is inserted.

The slide core 20 having the passageway grooves 22 is provided with one passageway groove 22. One projection 13 of the depression 12 shown in Figure 2a is formed in one depression to correspond to the passage-shaped groove (22). Other depressions do not have protrusions. The slide core 20 having one passage-shaped groove 22 is mounted to the depression 12 having one protrusion 13.

However, as described above, in the present invention, the number of depressions and passage grooves is flexible, and the slide core 20 having the passage grooves 22 has one to three passage grooves 22. It is formed in a range and the plurality of passage-shaped grooves 22 may be formed horizontally to each other. The projections 13 of the depressions 12 are formed in one to three ranges in each depression so as to correspond to the passage-shaped grooves 22.

Here, the passage-type groove 22 refers to a groove formed at least longer than the sliding area of the slide core so as to be able to slide while including the protrusion 13 in the groove. The slide core 20 having one or more passageway grooves 22 is configured to be mounted to the depression 12 having the same number of projections 13.

In other words, for example, when four slide cores are required for injection molding, the first slide core is formed with a flat bottom surface without grooves, the second slide core has one passage groove and a third slide core. There may be formed two passage grooves, and the fourth slide core may form three passage grooves. In addition, the first depression may have a flat bottom surface without protrusions, the second depression may form one protrusion, the third depression may form two protrusions, and the fourth depression may form three protrusions.

In this way, if the first slide core is mounted to the first depression, the second slide core to the second depression, the third slide core to the third depression, and the fourth slide core is not mounted to the fourth depression, the slide core cannot be assembled. This can fundamentally prevent the slide core misassembly.

The operation of the injection mold structure with the slide core misassembly prevention function according to the present invention made in this configuration will be described.

As shown in FIGS. 2A, 2B, 2C, and 2D, the first recessed portion 12 in which the protrusion 13 is formed has a first passage-shaped groove 22 corresponding to the protrusion 13. Only the slide core 20 can be mounted, and the grooveless second slide core 30 cannot be mounted by the protrusions 13. A second slide core 30 without a groove is mounted in the second recess 14 having no protrusion.

As a result, even if the external dimensions of the slide core are the same, the second slide core 20 cannot be mounted on the first recess 12, and thus, an erroneous assembly phenomenon occurring when the slide core is replaced is fundamentally solved.

According to the present invention there is provided an injection mold structure provided with a slide core misassembly prevention function that can fundamentally prevent the misassembly of the slide core during operation in the injection mold structure in which a plurality of slide cores are installed.

Although the present invention has been described with reference to the above-mentioned preferred embodiments, the scope of the present invention is not limited to these embodiments, the scope of the present invention is defined by the claims below and equivalent scope of the present invention It will include various modifications and variations belonging to. Also, reference numerals indicated in the following claims are for understanding and will not affect the interpretation of the scope of the invention.

Claims (3)

An angular pin 5 is provided on the upper plate 3, and a plurality of slide cores 20 and 30 having different design portions are provided on the plurality of recesses 12 and 14 of the lower plate 10, respectively. In the mold structure, At least one of the plurality of depressions is formed with a protrusion (13), and at least one of the plurality of slide cores has a passage-shaped groove (22) corresponding to the protrusion (13) at the bottom surface; Injection recess with a slide core misassembly prevention function, characterized in that the recessed portion 12 is formed with a protrusion 13 is formed so that the slide core formed with a passage-shaped groove 22 corresponding to the protrusion 13 is mounted. Mold structure. The method of claim 1, The slide core 20 A main body portion 21 having a pin guide hole 26 into which the angular pin 5 is inserted; A lower guide 24 extended from both sides of the lower portion of the main body portion 21; It is configured to include an upper body portion 28 which is located on the upper side opposite the pin guide hole of the main body portion 21 and having a design portion 23, The slide core 20 is an injection mold structure having a slide core misassembly prevention function, characterized in that configured to slide at a position specified by two guide pieces. The method according to claim 1 or 2, The slide core 20 having the passageway grooves 22 has the passageway grooves formed in one to three ranges, and the plurality of passageway grooves 22 are formed horizontally with each other, Protrusions 13 of the depressions 12 are formed in one to three ranges in each depression to correspond to the passage-shaped grooves 22, The slide core 20 having the at least one passage-shaped groove 22 is mounted on the depression 12 having the protrusion 13 of the same number, the injection mold with a slide core misassembly prevention function, characterized in that rescue.

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