KR200443314Y1 - Mold for manufacturing spout holder - Google Patents

Abstract

The present invention relates to a mold for producing a spout holder by two injection molding methods using two kinds of synthetic resin materials.

In the mold according to the present invention is provided with a cradle 51 for fixing the primary injection of modified polystyrene (MPPO, Modifide Polyphenylene Oxide) material, the cradle 51 in the groove portion 40 located on the inner wall of the spout holder 10 The protrusion for forming a) is in a protruding state before injection, and when the upper mold 60 is lifted after injection, the protrusion is contracted so that the spout holder 10 can be easily separated from the mold.

Spout Holder, Spout, Crimp Hose, Sink, Sink, Mold

Description

Mold for manufacturing spout holder

1A is a perspective view of a spout holder according to the prior art,

FIG. 1B is a schematic partial sectional view of FIG. 1A;

Figure 2 is a side perspective view of a spout holder manufactured using the present invention, a state in which the cap is disposed in the front,

3 is a front perspective view of FIG. 2;

4 is a cross-sectional view of FIG.

5 is a schematic perspective view of a mold according to the present invention,

Figure 6a is a view showing a state of use of the mold according to the present invention, a cross-sectional view showing a state before the appearance (external pipe),
Figure 6b is a view showing a state of use of the mold according to the present invention, a cross-sectional view showing a state in which the upper and left and right molds are lifted after external injection molding,
7A is a cross-sectional view of a mold according to the present invention, showing a state before injection of an external pipe;
Figure 7b is a cross-sectional view of the mold according to the present invention, showing a state in which the upper and left and right molds are lifted after external injection molding,

8A is a schematic perspective view of an inner tube of a spout holder separated from a holder positioned between a pair of left and right molds;

Figure 8b is a perspective view of the inner tube of the spout holder coupled to the cradle in Figure 8a,

FIG. 9 is a view schematically showing a process of forming a groove part by a cradle, and FIG. 9A is a view illustrating a state before injection of an external pipe, and FIG. 9B is a top portion after external injection molding. And a view showing a state in which left and right molds are lifted up,

10 is an explanatory diagram of a manufacturing process of the spout holder using the present invention.

* Explanation of symbols for the main parts of the drawings

10: spout holder 20: inner tube

20a: coupling part 30: appearance

40: groove 50: lower mold

51: holder 60: upper mold

70,80: Left and right mold 71: Exterior molding groove

The present invention relates to a mold for producing a spout holder by two injection molding methods using two kinds of synthetic resin materials.

Spout holder refers to a part or element of a tube that carries a liquid such as water or oil. It is usually curved in one direction. An apparatus for injecting oil into the fuel tank of a vehicle at a gas station may also be a kind of spout holder.

As such, spout holders are widely used around our lives. Hereinafter, a spout holder mounted on a sink of a household sink will be described.

Kitchens in modern apartments and villas are equipped with sinks for washing dishes. Water sinks for water supply are provided around the sinks.

Previously, the water supply facilities were only faucets and the like, but as a part of improving the value of interior accessories in recent years, there is a structured water supply facility as shown in FIGS. 1A and 1B.

1A is a perspective view of a spout holder according to the prior art, and FIG. 1B is a schematic partial cross-sectional view of FIG. 1A.

As shown in this figure, the spout holder 110 constitutes an element of the water supply facility. When the water supply facility is added to the overall water supply facility, the water supply facility is installed around the sink (not shown). ), A spout holder 110 coupled to the assembly body 101 for water supply, a pleated hose 120 coupled to the spout holder 110 to supply water in number, and a shower connected to the pleated hose 120. 130 is provided.

The assembly body 101 for water supply is equipped with a lever 103 for controlling or regulating the flow of water from the water pipe to the shower 130.

The pleated hose 120 has a pleated structure whose length is varied so that the shower 130 can be moved from the spout holder 110 to a desired position. The corrugated hose 120 is usually made of a metal material having corrosion resistance.

The spout holder 110 is an auxiliary means for mounting the shower 130. As shown, the spout holder 110 is bent to one side, that is, the shower 130 has a shape bent to one side to face the bottom surface of the sink.

The spout holder 110 forms a space for arranging the pleated hose 120 and means for connecting the shower assembly 130 and the assembly body 101 for water supply.

Cap 111 is further coupled to the top of the spout holder 110 to connect the shower 130 to the spout holder 110. The cap 111 is coupled to the spout holder 110 in a form in which the protruding jaw 111a formed at the insertion end side thereof is fitted into the groove 110a formed in the inner wall of the spout holder 110.

On the other hand, the spout holder 110 having the above role and structure is usually manufactured by casting using a brass material, then released as a finished product by forming a plating on the outer surface, it is mounted on the sink area by the operator in the field.

By the way, the conventional spout holder 110 is made of a brass material as described above, there is a problem that not only the manufacturing cost increases but also the weight is heavy. Heavy weights can increase the overall logistics costs or cause worker safety problems at work.

In addition, since the spout holder 110 and the corrugated hose 120 are all made of metal, the spout holder 110 is moved in the process of moving the corrugated hose 120 in the spout holder 110 when the shower 130 is pulled out. To hit the inner wall of the) causing excessive noise, if there is a problem that causes the wear and damage of the corrugated hose (120).

Thus, in order to solve this noise problem, as shown in Figure 1b, there is an example in which the guide ring 112 of the synthetic resin material is mounted on the spout holder 110 to guide the movement of the pleated hose 120.

However, in this way, when the guide ring 112 is used, not only the additional cost according to the purchase of the guide ring 112, but also a separate assembly process for assembling the guide ring 112 is accompanied by a problem have.

In addition, even if the guide ring 112 is used, the area where the corrugated hose 120 is substantially in contact with the guide ring 112 is known to have little effect of substantially reducing noise.

Therefore, in the past, the spout holder is manufactured by injection molding with synthetic resins, not metals, but the surface of the spout holder has been proposed to be manufactured so as to be indistinguishable from a metallic material in appearance. Since the overall shape is gently bent, the internal structure is complicated, and especially the inner wall has to be provided with a groove portion 110a for fitting the cap 111, it was not possible to manufacture by the conventional injection molding method of a synthetic resin mold.

That is, in the case of forming a protrusion for forming the groove 110a in the mold, when the spout holder 110 is to be separated from the mold after injection, the protrusion causes an interference and thus cannot be separated. The spout holder 110 had a closed end that can not be replaced with an injection by a synthetic resin.

An object of the present invention is to replace the spout holder with an injection molded material made of synthetic resin, so that the spout holder can be easily separated from the mold after injection.

In addition, the inner material of the spout holder is made of modified polystyrene (MPPO) in consideration of strength, and the outer material is made of ABS (Acrylonitrile Butadiene Styrene copolymer) in consideration of convenience in injection and plating. In order to construct a structure, the spout holder is first injected by modifying the internal structure by modified polystyrene (MPPO, Modifide Polyphenylene Oxide), and then fixed by fixing it inside the mold, and then by double injection by ABS (Acrylonitrile Butadiene Styrene copolymer). Another object is to be able to replace metals with synthetic resins.

To this end, the mold according to the present invention is provided with a cradle for fixing a primary injection of modified polystyrene (MPPO, Modifide Polyphenylene Oxide) material, in the cradle is a protrusion for forming a groove located on the inner wall of the spout holder before injection After being extruded, the upper mold is lifted after being ejected to be in a contracted state so that the spout holder can be easily separated from the mold.

This will be described in detail below.

The present invention relates to a mold (金 型) used when injection molding a spout holder of a synthetic resin material,

The spout holder made by the present invention is made of a material different from each other in the inner tube and the outer appearance, and first by injecting the inner tube first, and then by injecting the inner tube manufactured in the mold and then second injection by a different material, synthetic resin The spout holder is made of material.

Here, the inner tube is composed of a modified polystyrene (MPPO, Modifide Polyphenylene Oxide) material which is advantageous in terms of strength as a part constituting the skeleton of the spout holder,

The exterior is a part for forming the outer surface of the spout holder and is plated, and is made of ABS (Acrylonitrile Butadiene Styrene copolymer) which is a conductive material.

The mold according to the present invention is a mold used in the second injection, not the first injection, so that the inner tube manufactured by the first injection can be fixed at a proper position inside the mold during the second injection, and the second Forming a groove portion located on the inner wall of the spout holder during the injection, characterized in that configured to be easily separated from the spout holder after injection.

The object of the present invention includes a lower mold having a pair of holders on which a preformed inner tube is mounted such that a pair of grooves are formed on an inner surface of the spout holder; An upper mold forming an upper portion of the lower mold at a position spaced apart from the lower mold; And a pair of left and right molds provided at an upper portion of the lower mold and accessible and spaced apart from each other toward the other side, and having an outer surface forming groove for double injection of an outer shape formed on an inner surface of the inner tube. It is also achieved by a mold for the manufacture of the spout holder.

Here, the pair of cradles are inclined to each other with respect to the cradle body, are provided to be mutually accessible and spaced toward each other, the pair of cradles are spaced apart from each other when the molds are closed to each other, the molds are mutually open When the pair of cradles can be accessed mutually.

The lower mold may further include a guide block, and a block groove may be further formed on the inner surfaces of the pair of left and right molds to correct the position by inserting the guide block.

Hereinafter, with reference to the accompanying drawings will be described a preferred embodiment of the present invention.

FIG. 2 is a side perspective view of a spout holder manufactured using the present invention, in which a cap is disposed in front, and FIG. 3 is a front perspective view of FIG. 2, and FIG. 4 is a cross-sectional view of FIG.

Since the conventional spout holder 110 (see FIGS. 1A and 1B) described above has been manufactured as a cast-integral type of brass, manufacturing costs are high, its weight is heavy, and noise problems are caused.

However, since the spout holder 10 of the present embodiment is made of synthetic resin, all of the above problems can be solved.

First, the spout holder 10, which is the final product, will be described with reference to FIGS.

The spout holder 10 of this embodiment consists of the inner tube 20 and the exterior 30 largely. Both the inner tube 20 and the exterior 30 are made of synthetic resin, unlike the prior art. However, in relation to the plating process, the inner tube 20 and the outer case 30 are used in different materials.

When first expanding on the inner tube 20, the inner tube 20 has a bent shape in one direction. The inner tube 20 is formed as if most of it is inserted into the interior of the exterior 30, but a portion is provided to be partially exposed from any one side of the exterior 30.

Coupling portions 20a are formed on the outer surface of the exposed region of the inner tube 20 exposed from the outer appearance 30. Coupling portion 20a is utilized as a part that is combined with the water supply assembly body 101 when the spout holder 10 of the present embodiment is coupled to the water supply assembly body 101 shown in FIGS. 1A and 1B.

The inner tube 20 is prepared in advance of the modified polystyrene (MPPO, Modifide Polyphenylene Oxide) that is not substantially plated during the manufacturing process of the spout holder 10. That is, after being processed in advance in the form of a tube bent in one direction, it is mounted on a pair of holders 51 provided in the lower mold 50 to be described later. In order for the inner tube 20 to be mounted on the holder 51, the inner tube 20 is further provided with a mounting groove 22 corresponding to the position of the pair of holders 51, as shown in Figure 8a.

As shown in FIG. 4, a plurality of protrusions 20b may be further formed on the outside of the inner tube 20 to provide a firm coupling with the exterior 30 during double injection.

The exterior 30 is disposed on the outer surface of the inner tube 20 and molded. The exterior 30 also has a curved shape in one direction like the inner tube 20, and is made of synthetic resin, not brass.

However, the inner tube 20 is made of modified polystyrene (MPPO), whereas the exterior 30 is made of ABS (Acrylonitrile Butadiene Styrene copolymer). Of course, as will be described later, the exterior 30 is double-injected to the outside of the inner tube 20 by ABS, after the double-injection, it is plated.

In the plating process, only the exterior 30 except for the inner tube 20 is plated independently. This is because, due to the material properties, ABS, which is a material of the exterior 30, may be plated, and modified polystyrene (MPPO), which is a material of the inner tube 20, may not be plated.

In this case, when only the exterior 30 located outside is independently plated, the spout holder 10, which is a substantially final product, is not distinguished from the conventional spout holder 110 (see FIGS. 1A and 1B) in appearance. do. In other words, it is difficult to visually distinguish the spout holder 10 of the present embodiment and the conventional spout holder 110 (see FIGS. 1A and 1B) without hearing it.

On the other hand, when the exterior 30 is double-injected to the outside of the inner tube 20 to produce a single spout holder 10, the inner circumferential surface of the outer surface 30 adjacent to the upper end of the inner tube 20 is formed symmetrically to each other A pair of grooves 40 are formed. The inner surface of the pair of grooves 40 from one end of the outer surface 30 to which the cap 11 is coupled is tapered.

As shown in FIG. 2, when the cap 11 is coupled to the outside of the spout holder 10, the pair of grooves 40 are used as a place where the projection jaw 11a formed on the cap 11 is fitted. do. If the pair of grooves 40 are not formed, the cap 11 may be loose or easily detached from the spout holder 10.

For reference, the protruding jaw 11a formed in the cap 11 shown in FIG. 2 is formed between the pair of cutouts 11b cut out around the protruding jaw 11a. The cutout 11b allows the protrusion 11a to retain an elastic force that is curved inwardly, so that the protrusion 11a formed on the cap 11 can be easily fitted into the pair of grooves 40. It becomes possible.

Therefore, the pair of grooves 40 need to be formed in the spout holder 10. However, in the present embodiment, since the spout holder 10 is manufactured by double injection, it is difficult to form a pair of grooves 40 on the inner surface of the spout holder 10 by a simple injection mold.

If too complicated molds are to be used, this is also undesirable in terms of efficiency.

Therefore, in the present embodiment, a pair of grooves 40 are formed on the inner surface of the spout holder 10 more conveniently and conveniently through the molds 50 to 80 having the simple structure as described below. A mold 50 to 80 for manufacturing the spout holder 10 while the pair of grooves 40 are formed with reference to FIGS. 5 to 9 will be described.

Figure 5 is a schematic perspective view of a mold for the manufacture of the spout holder, Figures 6 and 7 are cross-sectional views showing the use state of the mold according to the present invention, Figure 8a is a cradle located between a pair of left and right molds Figure 8b is a schematic perspective view of a state in which the inner tube of the spout holder is separated from, Figure 8b is a perspective view of the inner tube of the spout holder is coupled to the cradle in Figure 8a, Figures 9 (a) and (b) is a groove by the holder A diagram schematically illustrating a process of forming an additional portion.

In the present embodiment, the molds 50 to 80 for manufacturing the spout holder 10 are largely composed of a lower mold 50, an upper mold 60, and a pair of left and right molds 70 and 80.

The lower mold 50 is fixed in place while others have a structure that can be moved. The upper portion of the lower mold 50 is provided with a pair of holder 51. A pair of cradle 51 is coupled to the cradle body 52, as shown in Figures 6 to 8b, a pair of cradle 51 is coupled to the cradle body 52 inclined mutually to the other side Are provided to be mutually accessible and spaced apart.

In the pair of holder 51, the inner tube 20 is mounted in the manufacture of the spout holder 10. More specifically, as shown in FIG. 8A, each of the pair of mounting grooves 22 formed in the inner tube 20 is mounted on the pair of holders 51 so that the inner tube 20 is mounted on the holder 51.

After the process is progressed and the spout holder 10 is manufactured after the mounting groove 22, which is an area of the inner tube 20, is mounted on the pair of holders 51, the pair of holders 51 is located. A pair of grooves 40 can be formed as it is (see Fig. 9). However, when the pair of holder 51 is fixed, the inner tube 20 may not be separated from the holder 51 after the process is completed.

Therefore, in the present embodiment, a pair of holders 51 are inclined with respect to the holder body 52 so as to be mutually accessible and spaced apart from each other.
Figure 6a is a view showing the state of use of the mold according to the present invention, is a cross-sectional view showing a state before the injection (external pipe), Figure 6b is a view showing the state of use of the mold according to the present invention, the appearance ( External pipe is a cross-sectional view showing a state in which the upper and left and right molds are lifted up after injection molding, and FIG. 7A is a cross-sectional view of a mold according to the present invention, and a cross-sectional view showing a state before the external pipe is injected, and FIG. 7B. Is a cross-sectional view of a mold according to the present invention, which is a cross-sectional view showing a state in which the upper and left and right molds are lifted after external injection molding.
In order to manufacture the spout holder, the cradle 51 and the cradle body 52 are first installed on the lower mold 50, and then the inner tube 20 is positioned above the cradle 51, but the cradle 51 is disposed thereon. Is positioned to fit in the mounting groove 22 of the inner tube (20).
At this time, the holder 51 is located in the holder body 52, as shown in Figure 6a, Figure 7a, in this state, both ends of the holder 51 slightly protrude from the outer peripheral surface of the holder body 52 Because it is in the state, the mounting groove 22 is inserted into it is fixed.
When the inner tube 20 is positioned above the lower mold 50 by the holder 21, the left and right molds 70 and 80 are assembled to the upper portion of the lower mold 50. The upper molds 60 and 80 are assembled to the upper mold 60 so that the exterior mold 30 can be injection molded.
In this state, when the ABS casting liquid is injected through the injection port 73, the exterior 30 is double-injected to the outside of the inner tube 20 in the exterior molding groove 71.
When the exterior 30 is molded by cooling after the injection process, the injection molding of the completed spout holder is separated from the mold by separating the left and right molds 70 and 80 and the upper mold 60 from the lower mold 50. Will be taken out.
The upper mold 60 is combined with a hanger (not shown) for lifting the upper mold 60, and thus lifting the upper mold 60, the upper mold 60, the left and right molds 70 and 80 are shown in Figure 6b and As shown in Figure 7b is raised together with respect to the lower mold 50, at this time the holder body 52 is a fixed state in place because it is integral with the lower mold 50, the holder 51 is the upper The mold 60 and the left and right molds 70 and 80 rise together.
Since the holder 51 is integrally formed with the intermediate connector 54, the holder 51 is formed in a long rod shape. Since the engaging part 53 is coupled to the lower end of the intermediate connector 54, the engaging part 53 is lowered. The cradle 51 is raised until it interferes with the mold 50. The cradle 51 and the intermediate connecting portion 54 located on both sides of the cradle 51 move upward with respect to the cradle main body 52 and the lower mold 50. Since it is installed in the form of a taper that narrows the gap, when the holder 51 is raised together with the upper mold 60 and the left and right molds 70 and 80, the upper part of the holder 51 is the holder body. The distance between the two cradle 51 is narrowed while protruding from the 52 and ascending along the tapered surface.
Therefore, when the upper mold 60 and the left and right molds 70 and 80 rise as shown in FIGS. 6B and 7B, the gap between the two holders 51 is narrowed as shown in FIG. 9B. As such, by lifting the upper mold 60 and then separating the left and right molds 70 and 80, the completed spout holder can be separated from the mold.

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The pair of left and right molds 70 and 80 are provided on the upper portion of the lower mold 50 and are provided to be mutually accessible and spaced apart from each other (see arrows in FIG. 5).

And the inner surface of the pair of left and right molds (70, 80) is formed with an outer mold forming groove 71 for the double injection of the outer mold 30 to be molded to the outside of the inner tube (20).

Referring to the enlarged part of FIG. 6 and FIGS. 8A and 8B, the face forming groove 71 has an indented shape with respect to the plate surface. In the periphery of the appearance molding groove 71 is formed a block groove 72 is inserted into the guide block 55 formed in the lower mold 50 to correct the position. When the inner tube 20 mounted on the holder 51 is disposed in the outer mold groove 71, the coupling part 20a having the inner tube 20 is further exposed toward the upper right ear of the outer mold groove 71. Is placed.

Then, the process of manufacturing the spout holder 10 of the present embodiment through this configuration will be described step by step with reference to FIG.

First, the inner tube 20 is molded and prepared in advance (S11). As described above, the inner tube 20 is molded using unmodified polystyrene (MPPO).

Next, after separating the molds 50 to 80, the preformed inner tube 20 is mounted on a pair of holders 51 provided on the lower mold 50 (S12). At this time, as shown in Figures 8a and 8b, a pair of mounting grooves 22 formed in the inner tube 20 is to be mounted one by one pair of holder 51. At this time, the pair of mounting grooves 22, which are the portions on which the inner tube 20 is mounted, becomes the position of the groove portion 40 to be processed later. This can be confirmed through (a) of FIG. 9.

As shown in FIG. 8B through the process of FIG. 8A, when the inner tube 20 is mounted, both the left and right molds 70 and 80 and the upper mold 60 are closed based on the lower mold 50 (S13). When the molds 50 to 80 are closed in this way, the exterior molding grooves 71 formed on the inner surfaces of the pair of left and right molds 70 and 80 are disposed outside the inner tube 20 mounted on the holder 51. When the molds 50 to 80 are closed as described above, the pair of holders 51 are spaced apart from each other to stably support the inner tube 20 (see FIG. 6).

After closing the molds 50 to 80, the ABS casting liquid is injected through the injection holes 73 formed in the left and right molds 70 and 80, and the exterior 30 is formed outside the inner tube 20 in the exterior molding groove 71. ) Is double injection so that double injection (S14). Then, the exterior 30 may be injected to the outside of the inner tube 20.

After the double injection, it is cooled for a predetermined time (S15). Then, the molds 50 to 80 are separated to take out the intermediate molded article (not shown) (S16). At this time, lifting the upper mold 60 raises the left and right molds 70 and 80 and the cradle 51 with respect to the lower mold 50 and the cradle body 52. The cradle 51 has a narrower gap upwards. Since the ground rises along the tapered path, both upper ends are inclined inward as shown in FIG. 9B.
Therefore, the inner tube 20 from the cradle 51 can overcome the closed end is not good.

As shown in Figure 9 (a), the holder 51 is mounted on the inner tube 20, as shown in Figure 9 (b), while the mold (50 ~ 80) is separated from the holder from the inner tube 20 When 51 is removed, the groove portion 40 can be formed as it is in the place where the cradle 51 is missing.

As such, the present invention is not limited to the described embodiments, and it is apparent to those skilled in the art that various modifications and variations can be made without departing from the spirit and scope of the present invention. Therefore, such modifications or variations will have to belong to the claims of the present invention.

As explained above,

According to the present invention, the spout holder 10 is replaced with an injection molded material, but the spout holder 10 can be easily separated from the mold after the injection.

That is, the inner material of the spout holder 10 is made of modified polystyrene (MPPO) in consideration of strength, and the outer material is ABS (Acrylonitrile Butadiene Styrene in consideration of convenience in injection and plating). In order to construct a copolymer material, first, the internal structure by the modified polystyrene (MPPO, Modifide Polyphenylene Oxide) material is injected, and then fixed in the mold, and then double-injected by ABS (Acrylonitrile Butadiene Styrene copolymer) material, The spout holder 10 can be replaced with a synthetic resin from a metal material.

In addition, the mold according to the present invention is provided with a holder 51 for fixing the primary injection molded product of modified polystyrene (MPPO, Modifide Polyphenylene Oxide) material, the holder 51 in the groove portion located on the inner wall of the spout holder 10 The protrusion for forming the 40 is protruded before injection, but when the upper mold 60 is lifted after injection, the protrusion is in a contracted state so that the spout holder 10 can be easily separated from the mold. .

Claims (3)

A lower mold provided with a pair of holders on which a preformed inner tube is mounted such that a pair of grooves are formed on an inner surface of the spout holder; An upper mold forming an upper portion of the lower mold at a position spaced apart from the lower mold; And It is provided on the upper side of the lower mold and mutually accessible and spaced toward each other, characterized in that it comprises a pair of left and right molds formed on the inner surface of the outer mold for the double injection of the appearance that is molded to the outside of the inner tube. Mold for manufacturing spout holders. The method of claim 1, The pair of cradles are installed in the form of a taper that becomes narrower as the space goes up with respect to the cradle body, and is provided to be mutually accessible and spaced toward the other. When the molds are assembled before injection, the pair of holders are spaced apart from each other, and when the upper mold is lifted from the lower mold after injection, the pair of holders are along the tapered inner slope of the holder body. A mold for producing spout holders, characterized in that they are mutually approached by being raised. The method of claim 1, The lower mold is further provided with a guide block, Molds for manufacturing a spout holder, characterized in that the inner surface of the pair of left and right molds are further formed with a block groove for inserting the guide block to correct the position.

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