TWM456903U - Forming device - Google Patents

Abstract

Provided are a forming method and a forming device used therefore. The forming method includes mounting an object to be molded in a mold of a forming device including a water pressure or steam pressure generator and the mold communicating with the generator, generating a water pressure or steam pressure using the water pressure or steam pressure generator and injecting the water pressure or steam pressure into the mold, and forming the object fixed in the mold using a pressure generated by the water pressure or steam pressure. According to the method and device, it is possible to form an undercut part which could not be implemented by an existing vacuum method or the like or a part which needs to be delicately formed. Further, it is possible to prevent problems such as a thickness deviation or whitening after the forming process.

Description

Forming device

The present invention relates to a forming method using water pressure and vapor pressure and a forming device.

When the artificial leather or decorative foil film is formed into a surface material of a high-grade interior and applied to an exterior material of a vehicle, an electronic component, and the like, a forming method (such as, for example, vacuum forming, hot press forming, Low pressure injection molding, and insert molding).

However, in the case of vacuum forming, a material may be deformed by heating or bubbles may occur during a deformation process. Also, a deep drawn article expands when it is in non-uniform contact with a mold. In this example, the thickness of the article after the forming process may become uneven. Furthermore, when a printed pattern is present on the surface of the article, the printed pattern may not be in focus with the article due to the uneven shaping.

In the liebling molding example, it is difficult to generate high pressure, and a foil film is elongated by a high pressure air. Therefore, there arises a problem that the foil film is whitening.

Low-pressure injection molding is a molten resin that is molded while it is being ejected. Methods. However, since the fluidity of the resin is insufficient and the high temperature resin is in direct contact with the mold, the mold may be damaged. Also, the thickness of the mold is not uniform because of a pressure difference in the mold, and the surface of the mold is whitened to say that the surface is not heated.

In the case of hot press forming, the problems described above occur, and a complicated shape having an undercut member cannot be formed.

The present invention relates to a forming method and apparatus using water pressure or steam pressure which induces a uniform high pressure state in a mold in a short period of time.

Additional objects of the present work will be apparent from the description and exemplary embodiments of the present disclosure below.

One aspect of the present invention provides a forming method comprising: mounting an article formed in a mold of a forming apparatus, the forming comprising a water pressure or vapor pressure generator and the mold being coupled to the generator The generator is used to generate a water pressure or a vapor pressure and to inject the water pressure or vapor pressure into the mold; and the pressure generated by the water pressure or vapor pressure is used to shape the article mounted in the mold.

Another aspect of the present invention provides a forming apparatus comprising: a water pressure or vapor pressure generator; and a mold in communication with the generator and having a water pressure or vapor pressure that can be generated using the generator The pressure will cause an unevenness in the formation of an object mounted in the mold.

1‧‧‧ generator

2‧‧‧Entry/Export埠

3‧‧‧Mold

4‧‧‧ objects

31‧‧‧上模

32‧‧‧Down

33‧‧‧Exhaust trench

34‧‧‧Fixed parts

5‧‧‧Flexible accessories

The above-described and other features and advantages of the present invention will become more apparent to those skilled in the art in the <Desc/Clms Page number> 2 is a schematic view showing a forming method according to an exemplary embodiment of the present invention; and FIG. 4A is a photograph showing a sample formed by a vacuum forming method; 4B is a photograph showing a sample formed by the forming method according to the present creation.

The present invention relates to a forming method comprising: mounting an article formed in a mold of a forming device, the forming member comprising a water pressure or vapor pressure generator and the mold being in communication with the generator; Using the generator to generate water pressure or vapor pressure and injecting the water pressure or vapor pressure into the mold; and using the pressure of the water pressure or vapor pressure injected into the mold to be installed in the mold The object is shaped.

Hereinafter, the forming method according to the present creation will be described in detail.

The article that can be applied to the forming method and apparatus according to the present invention can be a foil film, such as being used as a vehicle, an electronic component, and the like. A variety of decorative foil or artificial leather for the interior and exterior materials of this person. In the present creation, when the foil film is formed as a surface material, the shape including a water pressure or vapor pressure generator is used. Therefore, a uniform high pressure state can be effectively formed in which a uniform pressure can be temporarily applied to the entire object inside the mold. In one embodiment, the water pressure or vapor pressure generator according to the present creation may be a water or steam generator. The method can include a uniform high pressure condition in the mold and by injecting water or steam into the mold and injecting the water or steam into the mold to use the pressure to shape the item to be formed (eg, Foil film) is formed.

In the forming method according to the present invention, for example, a forming device as shown in Fig. 1 is used. However, the forming apparatus shown in Fig. 1 is only an example of the present creation. That is, any forming device other than the forming device shown in Fig. 1 can be used as long as it includes a water pressure or vapor pressure generator and a water pressure or vapor pressure which can be generated using the generator. The object can be formed.

As shown in Figure 1, the forming apparatus according to the present invention comprises a water pressure or vapor pressure generator 1, an inlet/outlet port 2 through which the water pressure or vapor pressure generated by the water pressure or vapor pressure generator can pass. The /out port is printed into or discharged from the mold, and a mold 3 is connected to the inlet/outlet port 2.

The generator 1 included in the forming apparatus shown in Fig. 1 may be a device for generating water pressure capable of forming an object and injecting water into the mold 3 by generating water; And/or pressurized water is injected into the mold 3 to produce a water pressure capable of forming an object. Or a device for generating steam by injecting and/or pressurizing water to inject steam into the mold 3 to produce a vapor pressure capable of shaping an object.

The range of the heating or pressurization is not particularly limited as long as the article mounted in the mold can be formed. For example, the water (or water pressure) or steam (or vapor pressure) produced by the generator 1 that will be used to shape an article may be pressurized to between about 150 and about 2000 bars, preferably From about 150 to about 1000 bar, more preferably from about 150 to about 500 bar, and most preferably from about 150 to about 200 bar. When the pressure is less than 150 bar, the resulting water pressure or vapor pressure will not be sufficient to shape the article. When the pressure exceeds 2000 bar, improper deformation or damage can occur on the object.

In one embodiment, the water (or water pressure) or steam (or vapor pressure) produced by the generator 1 to be used to shape an article may be heated to between about 30 and about 250 ° C, preferably. The ground is at a temperature of from about 30 to about 180 °C. When the temperature is less than 30 ° C, the resulting water pressure or vapor pressure will not be sufficient to shape the article. When the temperature exceeds 250 ° C, improper deformation or damage may occur on the article.

The inlet/outlet port 2 included in the apparatus shown in Fig. 1 can be used to introduce the water (or water pressure) or steam (or vapor pressure) generated by the generator into the mold 3. In an embodiment, one side of the cornice 2 can be connected to the generator 1 and the other side can be connected to the mold 3.

The mold 3 included in the apparatus shown in Fig. 1 is where an object 4 is formed by water pressure or vapor pressure from the generator 1. In an embodiment, as shown in FIG. 1, the mold may include an upper mold 31 and a lower mold 32.

The upper die 31 can be connected to the inlet/outlet port 2 and has a hole through which water or steam introduced via the inlet/outlet port 2 can be injected into the mold 3. Further, the lower mold 32 has an uneven portion (forming irregularity) formed therein. The shape of the unevenness can be determined according to the shape in which the article 4 will be formed.

In an embodiment, the article to be formed may be placed between the upper die 31 and the lower die 32.

The mold 3 may further include a fixing member 34 for fixing the article 4 to be formed. In this example, the kind of the fixing member 34 is not particularly limited. That is, any fixing member can be used as long as it can fix the article 4 mounted in the mold 3. For example, the fastener 34 can be an O-ring made of tantalum or flexible urethane. Therefore, the article can be more stably installed in the mold 3 by the fixing member 34. Therefore, the forming process can be performed more accurately.

The mold 3 may include one or more exhaust grooves 33 that prevent the interior of the mold 3 from being introduced into the mold 3 from water or steam when water or steam is introduced from the inlet/outlet port 2 to generate water pressure or vapor pressure. Excessively pressurized. In an embodiment, the exhaust grooves 33 may be formed on the lower die 32. The exhaust channels 33 can be connected to a typical exhaust unit (e.g., a vacuum pump, or the like) that can evacuate air from the mold.

Since these exhaust grooves 33 are formed, the inside of the mold is not excessively pressurized during forming. Further, if necessary, the inside of the mold can be formed into a vacuum condition between the forming processes using the water pressure or vapor pressure, which can be carried out more efficiently. This forming process.

As shown in Fig. 1, the forming apparatus according to the present invention may additionally include a flexible auxiliary member 5 attached to the lower end of the upper mold 31 such that the flexible auxiliary member 5 is placed on the upper mold. 31 is between the object 4. The flexible auxiliary member 5 can be manufactured from a flexible or expandable material which can be easily deformed by the water pressure or the vapor pressure generated by the generator 1. For example, a neoprene rubber, a silicone rubber, or a flexible urethane can be used as the flexible auxiliary member 5. When the forming device includes the flexible auxiliary member 5, the article 4 can be prevented from being damaged by the water pressure or the vapor pressure. Further, even in the case where an object has a hole and vacuum molding cannot be used, the forming process can be effectively performed.

Therefore, when the auxiliary member 5 made of a flexible or expandable material is disposed, the water pressure or the vapor pressure generated by the generator 1 can pressurize the article through the auxiliary member 5 to apply the The object is shaped. If necessary, the pressure can be applied directly to the article to effect the forming process without passing through the flexure aid 5.

A method of forming an article using the apparatus described above will be described below.

First, as shown in FIG. 1, the article 4 to be formed is fixed between the upper mold 31 and the lower mold 32.

Then, as shown in Fig. 2, water (or water pressure) or steam (or vapor pressure) is generated by the generator and injected into the mold. When this treatment is carried out, a uniform pressure is applied to the entire object 4 by the water pressure or vapor pressure generated by the generator 1. Therefore, the object 4 is moved toward the lower mold 32 move. The moved object 4 is deformed along the unevenness formed in the mold. Therefore, the article can be shaped as shown in FIG. In this process, air can be appropriately discharged via the exhaust groove 33, or if necessary, the inside of the mold can be formed in an empty state to improve the forming efficiency.

Since the water pressure or vapor pressure generated by the generator 1 is used, a uniform pressure can be applied to the entire object 4 to be shaped. Therefore, it is possible to prevent the thickness variation after the forming process and the occurrence of problems such as this.

The article 4 is evenly attached to the unevenness in the lower mold by the water pressure or vapor pressure generated by the generator 1 in a short period of time, or the water pressure or vapor pressure can be heated if necessary. And/or pressurized, then fully formed as shown in FIG.

According to the forming method of the present invention, when the water pressure or vapor pressure which can be heated and/or pressurized as needed is used to apply a constant pressure to the entire object to be formed, it is possible to effectively form a Undercut parts that cannot be made using conventional forming methods such as vacuum forming, and other parts that need to be carefully formed. Further, the method of the present invention can effectively prevent the thickness deviation after the forming process, and the thickness deviation occurs in the vacuum forming process. Furthermore, the method of the creation prevents the object from being whitened.

Fig. 4A is a photograph showing a sample formed by a conventional vacuum forming method, and Fig. 4B is a photograph showing a sample formed by the present forming method. As shown in Fig. 4A, in the sample formed by the vacuum forming method, its exterior was damaged, in which a printed line was broken and a pattern was spread. However, in the sample formed by the forming method of the present invention, one The pattern exists in an effective area and an edge portion is clearly exposed.

The present invention relates to a forming apparatus comprising a water pressure or vapor pressure generator and a mold connected to the water pressure or vapor pressure generator and having an unevenness, by which the object can be produced by the unevenness The water pressure or vapor pressure generated by the device is formed.

In an embodiment, the forming device according to the present invention may be a forming device for forming the foil film mentioned above.

The special configuration of the forming device according to the present invention is not particularly limited. For example, the apparatus shown in Figure 1 described above can be used.

That is, the forming apparatus according to the present invention may include the mold as described above having an upper mold in communication with the generator and a lower mold in which the unevenness is formed.

Further, the forming apparatus according to the present invention may include an exhaust groove formed on the lower mold as described above.

Further, the forming apparatus according to the present invention may additionally include an inlet/outlet port as described above connected to the water pressure or vapor pressure generator and the upper mold for the water produced by the generator Pressure or vapor pressure is introduced into the mold.

Further, the forming apparatus according to the present invention may additionally include a flexible auxiliary member formed on the lower end of the upper mold as described above.

Further, the forming apparatus according to the present invention may additionally include an O-ring by which an object can be fixed by the O-ring. The O-ring can be made of hydrazine or a flexible urethane.

According to the present invention, a water pressure or a vapor pressure which can be appropriately heated and/or pressurized as necessary is momentarily injected into a mold and an object is formed by the pressure generated by the water pressure or vapor pressure. . Therefore, the processing time can be significantly shortened. Further, according to the present creation, there is a need for a member that is carefully formed and an undercut member that cannot be accurately formed by a conventional method. Further, even when a printed matter or a printed pattern is formed on an object, the present invention can obtain a printed matter or a printed pattern on a molded object formed at an accurate position.

According to the present creation, a uniform pressure can be instantaneously generated over the entire area of an object by using the water pressure or vapor pressure. Therefore, the present invention can prevent the formation of defects which are caused by a decrease or unevenness in pressure applied per unit area when the area of an object is increased in a conventional method. Moreover, this creation can be implemented at a much lower cost and by a conventional method that increases the pressure mechanically, and the high pressure is easily implemented in many ways.

According to the present invention, whitening, heat damage and foaming can be prevented from occurring on an object such as a foil after a forming process. Moreover, the present invention can reduce the difference in expansion coefficient caused by the temperature difference when an object is in contact with a mold. Therefore, the present invention can prevent wrinkles and thickness deviations caused by problems of difference or concentration after the forming process.

According to the present creation, since the jig required in the vacuum forming method is no longer required, the space efficiency can be improved, and the loss of material can be remarkably reduced. Further, an auxiliary unit for fixing an object, such as a fixed unit (for example, a jig), or a heating unit required in a conventional forming method, is no longer required, and a single steam or water generator can be connected. Count Forming units (eg, molds). Therefore, this creation can increase the space utilization of the workplace and reduce the overall investment cost.

Although the present invention has been shown and described with reference to a certain exemplary embodiment of the present invention, it will be understood by those skilled in the art that various changes in form and detail may be defined without departing from the scope of the following claims. The spirit and scope of this creation was achieved.

1‧‧‧ generator

2‧‧‧Entry/Export埠

3‧‧‧Mold

4‧‧‧ objects

5‧‧‧Flexible accessories

31‧‧‧上模

32‧‧‧Down

33‧‧‧Exhaust trench

34‧‧‧Fixed parts

Claims (3)

A forming apparatus comprising: a water pressure or vapor pressure generator; a mold in communication with the generator and having a pressure capable of being installed by using a water pressure or a vapor pressure generated by the generator An unevenness in the formation of the article in the mold; an inlet/outlet port connected to the generator and the upper mold for introducing water pressure or vapor pressure generated by the generator into the mold And a flexible auxiliary member formed at a lower end of the upper mold, wherein the mold comprises an upper mold connected to the generator, and the lower mold is formed with the uneven portion, wherein the lower mold has a vent hole formed therein, wherein the mold further includes an O-ring for fixing the object. The forming apparatus of claim 1, wherein the flexible auxiliary member is made of chloroprene rubber, silicone rubber, or a flexible urethane. The forming apparatus of claim 1, wherein the O-ring is made of ruthenium or a flexible urethane.