KR101364413B1 - Casting wooden pattern with wood core for assembly and disassembly - Google Patents

Abstract

The present invention relates to a casting die having a neck beam for shaping and demolding; In the casting wooden mold in which the first wooden module and the second wooden module are assembled, the neck wooden beam is fixed to the joint surface of the first wooden module integrally, and the second wooden module is in close contact with the joint surface of the first wooden module. The joining surface of the neck beam is formed in the neck sheath fitting groove is formed, the molding portion corresponding to the shape of the neck beam end fixed to the first wooden module to form the neck sheathing groove in the second wooden module It is characterized in that the neck and slotted grooves formed by digging along the molding part. According to the present invention, when assembling a plurality of wooden modules constituting the prefabricated wooden neckband can be easily molded by a non-skilled person to insert the neckcloth for fixing the position between the wooden modules, the neckcloth and the neckcloth groove There are few tolerances, so the wooden modules can be assembled precisely, so that molds of uniform shape can be manufactured in large quantities.

Description

Casting wood pattern with wood core for assembly and disassembly {casting wooden pattern with wood core for assembly and disassembly}

The present invention can precisely process the wooden beam and the wooden beam fitting groove in which the wooden beam is fitted for the molding and demoulding of the casting mold of the complex structure manufactured as a prefabricated structure, there is no fear of deviation. The present invention relates to a casting die having a sheave for shaping and demoulding, which is advantageous for producing large quantities of molds of a type.

In general, casting is a metal processing technique in which molten metal is poured into a mold such as a sand mold or a mold and solidified to produce casting products of various forms.

At this time, the material used in the manufacture of the mold is called a casting sand, also known as casting or casting.

Such casting is widely used in the production of products today, and as a main sand casting, quartz, feldspar, mica, clay, etc. are used as main components, and iron oxide or calcite is included as a small amount as impurities.

In this case, when selecting sand casting sand as a factor that determines the quality of the casting, several conditions for installation should be considered. Therefore, it is easy to manufacture a mold, and it must be a mold without defect of hot molten metal. In order to satisfy these conditions, the strength, hardness, air permeability, caking force, thermal expansion and moldability, etc. should be adjusted.

On the other hand, casting (casting) can be mass-produced in a relatively simple equipment than forging, sheet metal, welding, and the like, and is easy to process.

In order to obtain such a cast product, first, a die having a shape of a cast product must be provided. Such wooden molds are used in the form of semi-permanent wooden molds that are processed by casting into wood, such as wood, or in the form of disposable products.

On the other hand, a plurality of molds (mould) to be produced using a wooden mold in this case, when manufacturing the upper and lower molds for casting, in the case of a complex structure of the wooden mold is produced as a prefabricated.

Public utility model room No. 1999-0017505 has been proposed as a prior art related to such a prefabricated wooden die. This relates to a prefabricated die, comprising: a die for producing a cast, comprising a plurality of angle members disposed at corners; A plurality of length members connecting the angle members; A step is provided at both ends of the angle member as a means for fixing the angle member and the length member, and both ends of the length member are configured to be connected and assembled by several bolts.

At this time, the prefabricated die has a structure that fits between the dies with the fitting protrusions (not shown) protruding downward along the lower edge of the flange die when the main die, the flange die, and the cover die are fitted together. Although this is a problem that the tolerance easily occurs as the maker of the wooden mold or approximate the fitting position to the fitting protrusion.

In particular, when such tolerances occur when assembling between dies, there is a problem in that a mold using the assembled die and a casting product finally manufactured by using the dies have a high defect rate.

Therefore, in order to reduce the defective rate of the assembly of such a wooden mold must be produced by a skilled person, there is also a problem that the production time of the wooden die is significantly longer, the productivity for the wooden production is also lowered.

Therefore, to solve such a conventional problem, the present invention has almost no tolerance when assembling a plurality of wooden modules constituting the prefabricated wooden neckboard for the combination and demoulding, which is advantageous for producing a large amount of precise and uniform molds The purpose is to provide a cast die equipped.

In addition, the present invention is to provide a casting die that can be precisely and simply forming a wooden beam fitting groove into which the wooden beam is fitted for fixing the position between the wooden modules when assembling or separating between the wooden modules (assembly and demoulding). There is a purpose.

According to an aspect of the present invention,

In the casting wooden mold in which the first wooden module and the second wooden module are assembled, the neck wooden beam is fixed to the joint surface of the first wooden module integrally, and the second wooden module is in close contact with the joint surface of the first wooden module. The joining surface of the neck beam is formed in the neck sheath fitting groove is formed, the molding portion corresponding to the shape of the neck beam end fixed to the first wooden module to form the neck sheathing groove in the second wooden module The present invention provides a casting die having a neckcloth for shaping and demoulding, characterized in that the slotting groove is formed by slotting the groove along the molding part.

At this time, the molded part marked for forming the neck beam fitting groove on the joining surface of the second wooden module is characterized by forming a neck beam fitting groove with an electric luther while the jig is in close contact.

The electric router includes a housing surrounding the electric motor, a bracket located below the housing to support the driving shaft of the electric motor projecting downward, a cutter connected to the driving shaft of the electric motor guiding downward through the collet chuck, and the pillar. A stopper portion connected to the bracket via the limiting cutting depth and width of the cutter; The jig is formed in the guide groove which is in close contact with the stopper portion and restricts the movement width of the stopper portion, and is formed through the center portion of the guide groove so that the cutter of the electric router moves and the joint surface of the second wooden module is displayed. It characterized in that the molding hole is formed through the same shape as the through.

At this time, the molding hole is characterized in that the same as the shape of the neck.

According to the present invention, when assembling a plurality of wooden modules constituting the prefabricated wooden neckband can be easily molded by a non-skilled person to insert the neckcloth for fixing the position between the wooden modules, the neckcloth and the neckcloth groove There are few tolerances, so the wooden modules can be assembled precisely, so that molds of uniform shape can be manufactured in large quantities.

In particular, in the case of using the prefabricated wooden mold of the Savior, even if the mold is produced in large quantities, it is possible to obtain a uniform quality, thereby lowering the defective rate of the casting product produced by the mold.

1 is an exploded perspective view showing an example of a casting die with a neck beam for shaping and demoulding according to the present invention.
Figure 2 is a view showing a jig and the electric router shown in order to explain the molding example of the wooden sheathing of the cast wooden neck with a beam for molding and demoulding according to the present invention.
Figure 3 is a view showing for explaining another example of the molding of the neck sheathing of the cast wooden dies with a neck beam for shaping and demoulding according to the present invention.
Figure 4 is a view sequentially showing an example of the production of a mold using a casting die with a neck beam for shaping and demoulding according to the present invention.

Hereinafter, with reference to the accompanying drawings, a molding die having a neck beam for molding and demolding according to the present invention will be understood by the embodiments described in detail.

While the present invention has been described in connection with certain embodiments, it is obvious that the invention is not limited to the disclosed embodiments, but, on the contrary, is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the invention. It is to be understood, however, that the invention is not intended to be limited to the particular forms disclosed, but on the contrary, is intended to cover all modifications, equivalents, and alternatives falling within the spirit and scope of the invention.

In the drawings, the same reference numerals are used for the same reference numerals, and in particular, the numerals of the tens and the digits of the digits, the digits of the tens, the digits of the digits and the alphabets are the same, Members referred to by reference numerals can be identified as members corresponding to these standards.

In addition, in the drawings, the components are exaggerated in size (or thickness), in size (or thickness), in size (or thickness), or in a simplified form or simplified in view of convenience of understanding. It should not be.

The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. Singular expressions include plural expressions unless the context clearly indicates otherwise. In the present application, the term " comprising " or " consisting " or the like is used to specify that a feature, a number, a step, an operation, an element, a component, But do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, parts, or combinations thereof.

Unless defined otherwise, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. Terms such as those defined in commonly used dictionaries are to be interpreted as having a meaning consistent with the contextual meaning of the related art and are to be interpreted as either ideal or overly formal in the sense of the present application Do not.

According to Figures 1 to 3, the casting die 100 with a wooden beam for the shaping and demoulding according to the present invention is a wooden beam 112 and so as to eliminate the assembly tolerances when assembling a plurality of wooden modules (110,120) The neck beam 112 is applied to the molding die 100, which is advantageous for producing a large amount of mold of a uniform shape by processing the neck beam fitting groove 122 to be fitted.

At this time, the casting die 100 is composed of a plurality of die module 110, 120 that is assembled to be used for the production of a complex structure of the die.

In this case, the wooden module (110, 120) may be made of various materials such as wood, mortar, styrofoam.

Hereinafter, for convenience, only the first wooden module 110 and the second wooden module 120, which are two wooden modules 110 and 120, will be described. However, the three or more wooden modules 110 and 120 may be assembled between three or more wooden modules 110 and 120. The same applies to assembly.

Such a first wooden module 110 and the second wooden module 120 is assembled to form a casting wooden mold 100, the wooden beam 112 is integrally formed on the joint surface of the first wooden module 110. A neck beam fitting groove 122 into which the neck beam 112 is fitted is formed on the joint surface of the second wooden module 120 which is fixed and closely adhered to the joint surface of the first wooden module 110.

At this time, the wooden beam 112 fixed integrally to the joining surface of the first wooden module 110 may be made of various materials such as wood, synthetic resin, metal, etc. The shape of the wooden beam 112 is rectangular parallelepiped, cylindrical In the case of using a triangular prism, or using a wooden beam having a low height, the triangular prism may be formed in a square plate, a disc, a triangular plate, or the like. That is, it is possible to selectively use a wooden beam 112 of various shapes.

The neck beam 112 is preferably a plurality of two or more fixed to the bonding surface of the first wooden module 110, the neck beam 112 is a fastening means 113 of a metal material such as nails or screws It is preferable to fix it.

On the other hand, the neck beam fitting groove 122 is formed on the bonding surface of the second wooden module 120 corresponding to the bonding surface of the first wooden module 110 to which the neck beam 112 is fixed.

After forming the molding part corresponding to the shape of the end of the neck beam 112 fixed to the first wooden module 110 to form the neck beam fitting groove 122 in the second wooden module 120, the molding Groove along the portion to form a necking groove 122.

In this case, the molding part of the neck beam fitting groove 122 corresponding to the neck beam 112 is displayed using a writing instrument or the like in a previously calculated area according to the position of the neck beam 112 or the first wooden module 110. After the ink is buried at the end of the neck beam 112, the contact part of the second wooden module 120 is brought into close contact with the joint surface of the second wooden module 120 to display the molded part of the neck beam fitting groove 122. can do.

On the other hand, the molding part of the sheath fitting groove 122 is displayed on the joining surface of the second wooden module 120 and then the shepherding fitting groove 122 is molded.

At this time, in order to form the neck sheathing groove 122, a known electric luther 200 used in woodworking operations such as corners, slotting, face processing, engraving, and curve cutting is used. An example of such a known electric router 200 has been presented in Patent Publication No. 194-0009443. This relates to a portable electric router, and a conventional luther has been proposed. The structure of the portable electric router includes a housing surrounding a driving source such as an electric motor, a bracket under the housing to support a driving shaft of an electric motor projecting downward, and a pillar. A base connected to the bracket and arranged to slidably contact the object to be machined, and a cutter connected to the electric motor drive shaft guiding downwardly through the collet chuck. Thus, the operator can carry out the cutting operation by holding a pair of handles attached to both sides of the bracket to operate the electric motor. Of course, the electric router 200 is an actual product that can be used as an example an electric router (no.7312H) of JEPSON.

The electric router 200 includes a housing 210 surrounding the electric motor, a bracket 220 positioned below the housing 210 to support the drive shaft of the electric motor protruding downward, and a collet chuck 230. The cutter 232 is connected to the drive shaft of the electric motor to guide to, and the stopper 240 is connected to the bracket 220 through the pillar 242 to limit the cutting depth and width of the cutter 232.

On the other hand, in the case of processing the neck fitting groove 122 in the second wooden module 120 using only the electric router 200, the neck fitting groove precisely along the molding portion displayed on the joining surface of the second wooden module 120 Since it is difficult to form 122, the jig 300 is used.

The jig 300 penetrates the guide groove 310 to which the stopper portion 240 of the electric router 200 is closely attached and restricts the movement width of the stopper portion 240, and the center portion of the guide groove 310. Is formed, the cutter of the electric router 200 is moved and the molding hole 312 is formed through the same shape as the molded part displayed on the joining surface of the second wooden module 120.

At this time, the distance between the inner surface of the guide groove 310 formed in the jig 300 and the inner surface of the molding hole 312 is between the outer peripheral surface of the stopper portion 240 of the electric router 200 and the cutter 232. Corresponds to the distance.

In particular, the molding hole 312 is formed in a rectangular shape as shown in Figure 2 to match the shape of the neck beam 112, or in a circular shape as shown in Figure 3 according to the shape of the neck beam 112 It can be made in a variety of shapes, such as made.

Of course, the guide groove 310 is also made of a rectangular or circular shape as a whole according to the shape of the molding hole 312, in this case the corner portion is made of a rectangular curved shape.

In the case of using the jig 300 having such a structure, the molding hole 312 of the jig 300 is brought into close contact with the molding part indicated on the joining surface of the second wooden module 120 and then the cutter of the electric router 200 ( 232 is moved to position the molding hole 312 of the jig 300 to process the neck fitting groove 122. In this case, the guide groove 310 formed in the jig 300 is moved to the necking groove 122 by moving the electric luther 200 until the stopper 240 of the electric router 200 is in contact with the guide groove 310 formed in the jig 300. Accordingly, even the non-skilled person can process the neck fitting groove 122 of the correct dimensions.

Hereinafter, with reference to FIGS. 1 to 4 will be described a cast wooden die with a wooden beam for shaping and demoulding according to the present invention and examples of its use.

As described above, after processing the wooden beam fitting groove 122 on the joint surface of the second wooden module 120, the wooden wooden beam 112 of the second wooden module 120 is fitted to assemble the prefabricated wooden frame 100. Finish and make the mold 400 using it.

According to this, the mold 400 may be manufactured by dividing at least the upper mold 410 and the lower mold 420. As shown, the male core 412 and the female core 422 are provided to be assembled at a predetermined position when the upper mold 410 and the lower mold 420 are assembled, and the male core 412 is provided. ) Is inserted into the female core 422 to assemble the upper mold 410 and the lower mold 420 in place.

At this time, the male core 412 and the female core 422 constituting the core assembly are all manufactured using a metal material, and can be manufactured in various forms such as casting, forging, and press working.

The manufacture of the mold using the casting wooden mold manufactured by the above various methods, and the casting example of the casting product using the mold are demonstrated.

Filling the molding sand in the lower mold 430 to produce the lower mold 420, and filling the molding sand in the upper mold 440 to produce the upper mold 410. At this time, the upper mold 410 and the lower mold 420 can be produced in any order.

At this time, the upper mold 440 and the lower mold 430 is formed in a rectangular frame shape of the upper and lower openings, handles 441 and 431 on the outside of the upper mold 440 and the lower mold 430 for easy transportation. Is provided to lift the upper mold 440 and the lower mold 430 can be separated from the mold 100 for casting.

The upper mold 410 and the lower mold 420 manufactured as described above are formed with spaces 414 and 424 into which molten metal is introduced, respectively, and a casting die 100 used to form the spaces 414 and 424. Separate.

When the casting die 100 is separated, the female core 412 and the male core 422 are fixed to the upper mold 410 and the lower mold 420, respectively.

As such, the casting die 100 used to manufacture the upper mold 410 and the lower mold 420 may be used to manufacture another upper mold 410 and the lower mold 420 again after separation.

Meanwhile, the upper mold 410 and the lower mold 420 manufactured as described above are brought into close contact with each other so as to form the spaces 414 and 424 in the same shape as the casting mold 100, and a molten metal (not shown) is added thereto. Filling and cooling the spaces 414 and 424 to solidify and separating the upper mold 410 and the lower mold 420 to obtain a finished casting product.

1 to 4 is a cast wooden die 100 having a wooden beam for shaping and demoulding as shown in order to illustrate an example, the neck for shaping and demolding having a variety of shapes or shapes Casting dies having a bobbin can be produced in a variety of, they are within the scope of the present invention regardless of the shape or shape.

100: casting wooden 110: first wooden module
112: wooden beam 120: second wooden module
122: neck slot groove 200: electric router
210: housing 220: bracket
230: collet chuck 232: cutter
240: stopper portion 300: jig
310: guide groove 312: molding hole

Claims (4)

In the casting die 100, the first die module 110 and the second die module 120 is assembled,
The neck beam 112 is fixed to the joint surface of the first wooden module 110 integrally, and the neck is connected to the second wooden module 120 which is in close contact with the joint surface of the first wooden module 110. Sheathing slot 122 is formed, which is fitted with the bobbin 112,
In order to form the neck beam fitting groove 122 in the second wooden module 120, the molding part corresponding to the shape of the end of the neck beam 112 fixed to the first wooden module 110 is displayed and the groove is formed along the molding part. Die-casting die with a sheath for molding and demoulding, characterized in that by forming a neck sheave fitting groove 122.
The method of claim 1,
In the molding part marked for forming the sheath fitting groove 122 on the joining surface of the second wooden module 120, the sheath fitting groove 122 is formed by the electric luther 200 in a state where the jig 300 is in close contact. Die-casting dies with a wooden beam for shaping and demoulding, characterized in that.
3. The method of claim 2,
The electric router 200 includes a housing 210 surrounding the electric motor, a bracket 220 positioned below the housing 210 to support the drive shaft of the electric motor protruding downward, and a collet chuck 230 downward. A cutter 232 connected to the driving shaft of the guiding electric motor, and a base 240 connected to the bracket 220 through the pillar 242 to limit the cutting depth and width of the cutter 232.
The jig 300, the base 240 is in close contact with the guide groove 310 to limit the movement width of the base 240, and formed through the central portion of the guide groove 310 through the electric router 200 Cutter is moved to the molding die with a neck beam for the shaping and demoulding, characterized in that the forming hole 312 through-shaped in the same shape as the molded part displayed on the joining surface of the second wooden module 120.
The method of claim 3, wherein
The molding hole 312 is a molding die with a wooden beam for the shaping and demoulding, characterized in that the same as the shape of the wooden beam 112.

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