KR101824486B1 - 3D rapid heating and cooling structures and the method of the mold - Google Patents

3D rapid heating and cooling structures and the method of the mold Download PDF

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Publication number
KR101824486B1
KR101824486B1 KR1020150168464A KR20150168464A KR101824486B1 KR 101824486 B1 KR101824486 B1 KR 101824486B1 KR 1020150168464 A KR1020150168464 A KR 1020150168464A KR 20150168464 A KR20150168464 A KR 20150168464A KR 101824486 B1 KR101824486 B1 KR 101824486B1
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South Korea
Prior art keywords
mold
heating
cooling
plate
cavity
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KR1020150168464A
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Korean (ko)
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KR20170062819A (en
Inventor
박제현
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박제현
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/17—Component parts, details or accessories; Auxiliary operations
    • B29C45/72—Heating or cooling
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/0025—Preventing defects on the moulded article, e.g. weld lines, shrinkage marks
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/17—Component parts, details or accessories; Auxiliary operations
    • B29C45/26—Moulds
    • B29C45/2602—Mould construction elements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/17—Component parts, details or accessories; Auxiliary operations
    • B29C45/72—Heating or cooling
    • B29C45/73—Heating or cooling of the mould
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/17—Component parts, details or accessories; Auxiliary operations
    • B29C45/72—Heating or cooling
    • B29C45/73—Heating or cooling of the mould
    • B29C45/7337—Heating or cooling of the mould using gas or steam
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/17—Component parts, details or accessories; Auxiliary operations
    • B29C45/76—Measuring, controlling or regulating
    • B29C45/78—Measuring, controlling or regulating of temperature

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  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)

Abstract

The present invention relates to a method of manufacturing a mold for forming an outer shape corresponding to an outer appearance of an injection mold to be produced on a first molding plate (upper core) of a first mold and being arranged opposite to the first mold, And a second molding plate (lower core) corresponding to the inner surface of the molded article, wherein a heating medium for heating the first molding plate or a cooling medium for cooling or an air medium for blowing a cooling medium The present invention relates to a three-dimensional rapid heating cooling structure of a mold and a method thereof, which further includes a rapid heating and cooling water furnace to realize an injection molded article as a high-gloss wellless product.
In the present invention, a cavity or a core constituting a molding part is divided into two or more parts, a three-dimensional heating and cooling structure and a sealing structure are formed on the upper plate, a supporting surface is formed on the lower plate, Rapid heating and rapid cooling by using hot steam in mold during injection molding, air blowing to improve the rapid heating and cooling efficiency in mold cavities in realizing high gloss homogeneous products Thereby improving the productivity and improving the quality.

Description

Technical Field The present invention relates to a 3D rapid heating and cooling structure of a mold,

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a three-dimensional rapid heating and cooling structure for a metal mold, and more particularly to a three- - Three-dimensional rapid heating and cooling structure of mold and its method with improvement of productivity and quality improvement by improving the rapid heating and cooling efficiency of mold by forming cooling structure and sealing structure and forming supporting surface on bottom plate and assembling it .

Generally, an injection mold is a device for mass-producing an injection object corresponding to a cavity by injecting molten resin into a molding portion in the mold. The injection mold includes a lower mold (or a second mold) constituted by an upper mold (or a first mold) and a core corresponding to an inner shape of the injection mold, and a lower mold (or a second mold) constituted by cavities corresponding to the outer shape of the injection molded article. An injection device for injecting the molten resin, and a take-out device for taking out the mass-produced product in which the molten resin is solidified. Injection mold The temperature of the mold should be adjusted for the quality of the molded product during injection. This affects the appearance quality, shrinkage and productivity of molded products.

FIG. 14 is a diagram explaining a conventional O-ring sealing method, which is a description of "Patent Application No. 10-2002-0003897 O-ring Sealing Method", and is a general description of a semiconductor device and a medical device, a high vacuum HIGH VACUUM), which is a method of sealing the equipment requiring rubber material (RUBBER MATERIAL). This O-ring sealing technology is a technique of forming a wave on the upper surface of the O- And then pressurized by a plate to maximize the vacuum. These rubber materials determine the elastic properties by vulcanizing and curing the specific additives (ie, TIO2, BASO4, SIO2, etc.) into which the compounding materials are incorporated.

However, in order to maintain the high vacuum of each of these conventional equipments, a method of sealing is used in order to improve the quality of the rubber material in the rubber material by a ring of a ring shape according to the characteristics of the equipment It is made by vulcanization molding with the addition of certain additives (TIO2, BASO4, SIO2, etc.). In semiconductor equipments and general equipments which require higher integration, o-ring sealing ) Method has become a problem.

Particularly, such prior art has no particular limitation except that it has a semi-rectangular structure as a structure for an O-ring application and a pressing operation for a general O-ring application, and a semi-rectangular structure is formed in a planar section It is impossible to process the molded surface having the 3D structure and the clogged structure.

15 is a cross-sectional view showing a state of a conventional laminated type structure, an enlarged main part view, a perspective view and an enlarged main part view, showing the operation principle of a rapture tooling machine (also called "LaserCusing" This prior art technique uses a Rapid Tooling type laser to three-dimensionally melt, stack, stack, and solidify three-dimensional heating - Implement a cooling structure. Implementation is the same as 3D printer.

However, such a conventional lamination type heating-cooling structure has a problem that only a small particle portion of a mold can be applied. That is, as shown in FIG. 15, there is a restriction on the size of the facility, and the main cavity or the main core (referred to as the largest core that forms the inner or outer portion of the mold) , A main core is referred to as a " Hako "), and it is mainly applied to a core (main core or a small core included in a part of a main core) there was. Further, there is a problem that the hole of the lamination type heating-cooling structure is limited to within 3 mm. This results in a problem that the cooling during the injection after the formation of the three-dimensional cooling core is blocked and the cooling efficiency is lowered.

16 is an explanatory view showing a diffusing bonding method of a conventional mold and showing a state of a diffusion bonding structure of a conventional mold, and a rapid heating-cooling structure applied to a laminated metal mold and a split metal mold using a diffusion bonding technique The conventional diffusion bonding technique is a method of heating the processed metal to a temperature higher than the recrystallization temperature in a controlled atmosphere and then pressing the metal to pressurize the metal so as not to cause a change in shape. And is pressed so as not to undergo plastic deformation as much as possible at a temperature equal to or lower than the melting point of the base material so as to join by using diffusion of atoms generated between the bonding surfaces.

However, such a laminated heating and cooling structure has a problem in that the size of the mold is limited. That is, it is applicable to small and medium sized molds, and the main cavity or main core size is 900 to 900 mm at maximum, which is not applicable to TVs, washing machines, air conditioners, and automobile large parts. Further, it is difficult to modify and modify the mold of the joint as the structure of the joint system. In other words, there has been a problem that the whole must be newly produced.

17 is a perspective view showing a state of a conventional general circular hole structure, an enlarged main part view and a main part enlarged sectional view of a main part, and is a view showing a state of a conventional line rapid cooling structure, .

However, such prior art has a problem in that it is in a straight line of the heating and cooling structure, and thus the appearance difference problem and the cycle time increase due to the height difference of the molded part. That is, the rapid heating and cooling time of the mold during the total injection time (injection, holding pressure, cooling, mold opening, extraction, mold) becomes long and the appearance of the high gloss product generates heat marks, There is a problem that the appearance is different in appearance due to the difference of corrosion.

(1) Korean Patent Application No. 10-2002-0003897

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and it is an object of the present invention to provide a three-dimensional heating and cooling structure and a sealing structure on a top plate by dividing a cavity or a core constituting a molding section into two or more, And then the mold is rapidly heated and rapidly cooled using a high temperature steam in the mold during injection molding to air blow to realize a high gloss wellless product, Dimensional rapid heating and cooling structure of a metal mold having improved productivity and improved quality by improving the rapid heating and cooling efficiency of the metal mold.

In order to achieve the above object, a three-dimensional rapid heating and cooling structure of a metal mold of the present invention comprises an outer shape corresponding to an outer appearance of an injection mold to be produced in a first molding plate (upper core) of a first mold, And a second molding plate (lower core) disposed opposite to the first mold and corresponding to an inner surface of the injection mold to be manufactured in the corresponding second mold,

Further comprising a plurality of rapid heating and cooling water passages through which a heating medium for heating the first molding plate or a cooling medium for cooling or an air medium for blowing a cooling medium passes through the first molding plate to heat the injection molded article into a high gloss well- Product.

The first molding plate is divided into a first A cavity and a first B cavity so as to improve rapid heating and cooling efficiency. The first A cavity has a constant thickness so as to enable rapid and uniform temperature control, And a rapid heating and cooling water path for rapidly heating and cooling the first forming plate, and a supply line and a discharge line for the steam generator are connected to the rapid heating and cooling water, And the steam supply hole and the steam discharge hole are communicated with each other so that the heating, cooling, and air medium can be supplied or discharged, respectively.

The 1B cavity includes a sealing securing portion that is arranged in line with the 1A cavity and supports the rapid heating and cooling water passage of the 1A cavity and fixes the sealing material to the sealing portion of the 1A cavity. And the air medium is prevented from leaking. A temperature sensor is provided to sense the temperature during rapid heating and cooling, thereby inducing operation of the steam generator.

The sealing member used in the sealing portion is characterized in that either a Viton O-ring or a high-temperature seal cone is applied or an O-ring is selectively used.

The heating medium applies steam supplied to the steam generator. The steam generator includes a steam device for converting water into steam, a supply device for supplying steam, a water supply device for supplying cooling, a fan for generating and blowing air, Air supply device, but can be sequentially supplied.

The second mold is combined with the first forming plate to form a cavity, and a space block and a second mounting plate are formed below the second forming plate. Between the second forming plate and the second mounting plate, A third valve plate, and a third valve plate at a lower portion of the second mounting plate, and a plurality of (multiple) A hot-valve plate including a hot-valve gate is disposed to form an outer appearance of the second mold and constitutes a mil-fin capable of taking out an injection product, which is constrained to take-out and taken out, .

The mold plate includes a top plate and a bottom plate. The top plate includes a molding pin for taking out the molding. The molding pin is mounted on the top plate and the bottom plate, and moves up and down. There is a feature of pushing up the injection through.

Also, a three-dimensional rapid heating and cooling method for a metal mold according to the present invention is a metal mold heating method for heating a metal mold to 120 to 180 DEG C through a metal mold type starting heating medium;

An injection mold closing step of advancing the injection by closing the mold after heating;

Molding mold surface heating injection step of heating the molding surface of the mold at a remelt temperature of 120 DEG C of the resin in order to prevent solidification of the resin during the injection at the time of injection so as to express a high gloss well dress of the injection mold at the time of injection;

A mold cooling step of cooling the mold to 60 占 폚 through a cooling medium after completion of injection;

A mold air blower step for blowing the cooling medium of the mold to the air through the air medium; And

And a step of taking out the article after the mold has been opened.

The mold has an outer shape corresponding to an outer appearance of an injection mold to be manufactured on a first molding plate (upper core) of the first mold, and is disposed opposite to the first mold and is combined with the first mold to produce a corresponding second mold And a second molding plate (lower core) corresponding to the inner surface of the molded article, wherein the first molding plate is divided into a first A cavity and a first B cavity, and the first A cavity has a rapid and uniform temperature control And a plurality of rapid cooling / air blowing units for rapidly heating, cooling and air blowing the first forming plate through a heating medium, a cooling medium, and an air medium, respectively, Heating and cooling water furnace.

The heating medium applies steam supplied to the steam generator. The steam generator includes a steam device for converting water into steam, a supply device for supplying steam, a water supply device for supplying cooling, The air supply unit includes the air supply unit, but the air supply unit is configured to supply the air supply unit sequentially.

As described above, according to the present invention, a three-dimensional heating and cooling structure and a sealing structure are formed on an upper plate and a supporting surface is formed on a lower plate by dividing a cavity or a core constituting the molding part into two or more parts, In the injection molding, rapid heating and rapid cooling are performed using high temperature steam in the mold, and air blowing is performed to realize a high gloss wellless product. Therefore, rapid heating and cooling efficiency Improvement in productivity and quality improvement.

Also, the first cavity and the second cavity of the first mold are divided to realize a three-dimensional heating and cooling structure, thereby shortening the heating time and cooling time of the mold and shortening the cycle time.

Further, since the first cavity and the second cavity for realizing the three-dimensional cooling are formed by the mold itself, there is no restriction on the size of the other three-dimensional cooling implementation, and there is no outer process, thereby reducing the cost.

In addition, there is no cost reduction because there is no process to shorten the delivery and outsourcing process by the machining machining method in the existing gilder hole method.

In addition, since the mold heating and cooling structure maintains a certain distance from the molding surface, it is possible to improve injection quality by eliminating injection problems such as weld line, unevenness, jetting, etc. on the appearance of the product.

In addition, it improves productivity by reducing injection defects, and can reduce raw materials.

In addition, a wave is applied to the upper surface of the O-ring, which is a sealing material, and the lower end surface is sealed with a semi-rectangular structure, and a repulsive elastic force is generated between the O- Can be variously provided.

It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined in the appended claims and their equivalents. Of course, such modifications are within the scope of the claims.

FIG. 1 is a sectional view showing a mold according to a three-dimensional rapid heating and cooling structure of a mold according to an embodiment of the present invention,
FIG. 2 is a perspective view of the mold external appearance of FIG. 1,
FIG. 3 is a front perspective view and a rear perspective view showing a TV cover-Rear, which is manufactured as a three-dimensional rapid heating and cooling structure of a mold according to an embodiment of the present invention,
4 is an enlarged cross-sectional view showing the first part cavity of the first mold shown in Fig. 1 and the first B cavity in detail,
Fig. 5 is an enlarged cross-sectional perspective view of the notation A of Fig. 4,
Fig. 6 is an enlarged sectional view of the main part showing the shapes of the sealing portions provided on the left and right sides of the heating and cooling water path of the heating and cooling section of Figs. 4 and 5,
FIG. 7 is a cross-sectional view and perspective view showing a three-dimensional view of the state of a sealing groove in a product appearance, a dividing surface, a heating cooling water, and the like applied to an embodiment of the first-A cavity according to the three- And enlarged oblique view,
FIG. 8 is a graph showing the state of the first B cavity bottom corresponding to the division surface, the sealing fixing portion, and the first molding plate corresponding to the 1A in the three-dimensional rapid heating and cooling structure of the mold according to the embodiment of the present invention, And FIG. 5 is a perspective view of the main part,
FIG. 9 is a perspective view and an enlarged principal perspective view and an explanatory view showing a state in which the first 1A cavity and the first B cavity are assembled with a plurality of fixing bolts in a three-dimensional rapid heating and cooling structure of a mold according to an embodiment of the present invention;
10 is a plan view and a perspective view showing a state where the steam generator is connected to the first mold in the three-dimensional rapid heating and cooling structure of the mold according to the embodiment of the present invention,
FIG. 11 is a photograph showing an embodiment of Viton O ring and silicon sealing in a three-dimensional rapid heating and cooling structure of a mold according to an embodiment of the present invention,
12 is a photograph showing an actual injection state of a mold having a three-dimensional rapid heating and cooling structure of a mold according to an embodiment of the present invention,
FIG. 13 is a flowchart showing a three-dimensional rapid heating and cooling method of a mold according to an embodiment of the present invention,
14 is an explanatory view showing a state of a conventional o-ring sealing method,
FIG. 15 is a cross-sectional view showing a state of a conventional laminated structure, an enlarged sectional view, a perspective view and an enlarged oblique view,
16 is an explanatory view showing a diffusion bonding structure of a conventional mold,
17 is a perspective view showing a state of a conventional circular hole structure, and an enlarged perspective view and a partial enlarged view of a main body of the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be described in more detail with reference to the accompanying drawings.

In the following description of the present invention, a detailed description of known functions and configurations incorporated herein will be omitted when it may make the subject matter of the present invention rather unclear.

In addition, the terms described below are defined in consideration of the functions of the present invention, which may vary depending on the user, the intention or custom of the operator, and the like.

Therefore, it goes without saying that the definition should be based on the contents throughout this specification.

FIG. 1 is a cross-sectional view illustrating a mold having a three-dimensional rapid heating and cooling structure according to an embodiment of the present invention. FIG. 2 is a perspective view showing the outer appearance of the mold of FIG. The rapid heating cooling and sealing structure includes a steam generator 160, a supply line 161, and an exhaust line 162. That is, steam is supplied to the first A cavity 113 and the first B cavity 114 of the mold 100 to heat the mold 100, and the first A cavity 113 and the first B cavity 114 are cooled and air And the mold 100 is cooled. In this way, the mold 100 is heated, cooled, and then supplied with air sequentially to develop a high-gloss well dress product.

The mold 100 of the present invention includes a first mold 110, a second mold 120, a blanket 130, and a hot valve plate 140.

The first mold 110 includes a first A cavity 113 and a first B cavity 114 having a shape corresponding to the outer appearance of the molding 150 to be manufactured. The first A cavity 113 and the first B cavity 114 are three-dimensionally divided according to a certain distance corresponding to the outer appearance. The first 1A cavity 113 includes a rapid heating and cooling water furnace 200 for rapid heating and cooling. The rapid heating and cooling water path 200 includes a sealing fixing part 213 and a sealing groove 214. The sealing groove 214 is finished using a sealing material 215. [ The first cavity (113) and the second cavity (114) are assembled together to form one cavity.

The first mold 110 includes a first mounting plate 111 and a first mounting plate 112 for preventing deformation that may be caused by injection pressure at the time of injection and supporting the cavity, Is located above the first shaping plate 112. A temperature sensor 115 may be installed in the first B cavity 114 to control the temperature of the steam generator 160 by sensing the heating and cooling temperatures.

The second mold 120 includes a second core 123 disposed opposite to the first mold 110 and having a shape corresponding to a back surface (an inner surface of the injection mold) of the injection mold 150 to be manufactured. A plurality of hot valve gates 144 are provided on the inner lower side of the second core 123 to inject molten resin from an injector (not shown) to form an injection 150.

The second mold 120 includes a second molding plate 122, a space block 124, a second mounting plate 121, and a hot valve plate 140. The second shaping plate 122, the space block 124, the second mounting plate 121, and the hot valve plate 140 may be sequentially positioned at the bottom. And supports the cavity together with the first mounting plate 111 and the first forming plate 112 of the first mold 110.

The hot valve plate 140 includes a third AH plate 141, a third B valve plate 142 and a third C valve plate 143 and constitutes a plurality of hot valve gates 144.

The second molding plate 122 is combined with the first molding plate 112 to form a cavity and the space block 124 and the second mounting plate 121 are positioned below the second molding plate 122. A blanket 130 is positioned between the second forming plate 122 and the second mounting plate 121 to form a space in which the blanket 130 can be moved up and down, A hot valve plate 140 is disposed under the mounting plate 121 to form an outer appearance of the second mold 120.

The blanket 130 includes a top plate 131 and a bottom plate 132 and the top plate 131 includes a dowel pin 133 for taking out the bellows 150. The microneedles 133 are attached to the upper and lower plates 131 and 132 to move up and down and partly to the second mold plate 122 and the second mold plate 122 between the mold 150 and the second mold plate 122. [ The injection material 150 can be pushed up through the core 123.

The second molding plate 122 may include a plurality of cylinders 134 so that the bobbin 130 can move up and down. The cylinder 134 operates through the hydraulic line of an injector (not shown).

A supply line 161 may be connected to allow the heating medium for heating the first mold 110 or the cooling medium for cooling to flow therethrough and the heating medium or the cooling medium may be supplied to the first mold 110 to be discharged therefrom.

The heating medium applies steam supplied to the steam generator 160. The steam generator 160 is connected to a steam generator (not shown) for converting water into steam and a supply device (not shown) A water supply device (not shown) for supplying cooling water, and an air supply device (not shown) for generating and blowing air, which are sequentially supplied. The temperature of the second mold 120 is controlled by connecting hot water or cold water supplied from a separate temperature controller (not shown) to the second mold plate 122 and the second core 123 to cool the mold.

3 is a front perspective view and a rear perspective view showing a TV cover-reare as a product 150 manufactured by a three-dimensional rapid heating and cooling structure of a mold according to an embodiment of the present invention, And the product rear face 152 is applied to the molding surface of the second core 123 of the second mold 120. The second mold 120 is formed on the molding surface of the first cavity 113 of the first mold 110,

4 is an enlarged cross-sectional view showing the first cavity 110 and the first cavity 111 of the first mold 110 shown in FIG. 1 in detail. The mold 100 shown in FIG. The first 1A cavity 113 of the first cavity 113 is processed with a predetermined distance from the product outer surface 151 of the first 1A cavity 113 for rapid heating and rapid cooling so that the shape of the first 1A cavity 113 It accomplishes. And a water channel of the heating and cooling unit 210 is formed on the dividing surface 221. The first B cavity 114 is composed of a single cavity by interposing the first A cavity 113 with respect to the division plane 221. The thickness of the first B cavity is set in accordance with the mold strength. The shape of the heating and cooling part 210 will be described in detail in FIG. 7 below.

FIG. 5 is an enlarged cross-sectional perspective view of the notation A of FIG. 4, showing a cross-sectional shape of the heating and cooling section 210 with respect to the heating and cooling water path 211 and includes a steam supply hole 216 for rapid heating and rapid cooling, And includes a steam discharge hole 217.

Fig. 6 is an enlarged sectional view of the main part showing the shapes of the heating cooling water path 211 and the sealing part 212 provided on the left and right side surfaces of the heating and cooling part 210 of Figs. 4 and 5, The diameter is 8 ~ 12mm. The sealing part 212 is provided with a sealing material 215 in the sealing groove 214 of the first cavity 113 and is fixed to the sealing fixing part 213 of the first B cavity 114 when assembled with the first B cavity 114. [ And the sealing member 215 are fixed. This prevents the sealing material 215 from being deformed by the pressure of the steam during rapid heating-cooling.

7 is a sectional view showing the product outer surface 151, the dividing surface 221, the heating cooling water path 211, the sealing surface 221, and the sealing surface 213 applied to the first cavity 113 in the three-dimensional rapid heating and cooling structure of the metal mold according to the embodiment of the present invention. Sectional view showing the state of the groove 214 in a stereoscopic manner, a perspective view and an enlarged principal perspective view. The reference numeral 220 is a parting line.

8 is a schematic view showing a three-dimensional rapid heating and cooling structure of a mold according to an embodiment of the present invention in which a first B cavity 114 is divided into a division surface 221 corresponding to the cavity 113, a sealing fixing portion 213, Sectional view showing the state of the first B cavity bottom 222 corresponding to the plate 112 in a three-dimensional view, a main part enlarged perspective view, a cutting perspective view, and a cross-sectional view.

9 is a perspective view showing a state where the first A cavity 113 and the first B cavity 114 are assembled with a plurality of fixing bolts 241 in a three-dimensional rapid heating and cooling structure of a mold according to an embodiment of the present invention, An enlarged perspective view and an explanatory view are provided for locking the first IA cavity 113 and the first B cavity 114 for mutual alignment.

10 is a plan view and a perspective view showing a state in which the steam generator 160 is connected to the first mold 110 in the three-dimensional rapid heating and cooling structure of the mold according to the embodiment of the present invention. The cooling medium and the air are supplied through the supply joint 161 and the supply joint 163 of the first mold 110 through the steam pipe 165. The used heating medium, 162 to the steam generator 160 again.

FIG. 11 is a photograph of an actual embodiment of the sealing process of Viton O-ring and silicone sealing in a three-dimensional rapid heating and cooling structure of a mold according to an embodiment of the present invention. FIG. 12 is a three- FIG. 3 is a photograph showing the actual injection state of the mold 100 of the present invention having the cooling structure. FIG.

FIG. 13 is a flowchart sequentially illustrating a three-dimensional rapid heating and cooling method of a mold according to an embodiment of the present invention. In FIG. 13, the mold 100 is heated to 120 to 180.degree. C. through a mold- A molding step 102 in which molds 100 are heated, a molding step 102 in which molds are closed and molding is progressed, and a molding step 102 in which a remelt temperature of the resin is set to 120 ° C A molding mold surface heating injection step 103 for heating the molding surface of the mold 100 to develop a high gloss well dress of the injection mold at the time of injection molding and a mold for cooling the mold 100 to 60 deg. A mold air blower step 105 for blowing the cooling medium of the mold 100 to the air through an air medium; a step for taking out the article to be taken out of the article after opening the mold 100; Step 106 is performed.

The mold 100 has an outer shape corresponding to an outer appearance of an injection mold to be manufactured on a first molding plate (upper core) 112 of the first mold 110 and is disposed opposite to the first mold 110, And a second molding plate (lower core) 122 corresponding to the inner surface of the injection mold to be manufactured in the corresponding second mold 120 by being coupled with the mold 110, The first A cavity 113 is divided into a first cavity 113 and a first B cavity 114. The first A cavity 113 has a constant thickness T1 so that rapid and uniform temperature control is possible, A rapid heating and cooling water passage 200 is formed so that the first molding plate 112 can be rapidly heated, cooled, and air-blown through a heating medium, a cooling medium, and an air medium, respectively, .

The heating medium applies steam supplied to the steam generator 160. The steam generator 160 is connected to a steam generator (not shown) for converting water into steam and a supply device (not shown) A water supply device (not shown) for supplying cooling water, and an air supply device (not shown) for generating and blowing air, which are sequentially supplied.

The foregoing has shown and described specific embodiments. It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.

100: Mold
110: first mold 111: first mounting plate
112: first shaping plate 113: first 1A cavity
114: first B cavity 115: temperature sensor
120: second mold 121: second mounting plate
122: second shaping plate 123: second core
124: Space block
130: Hyo-il Publishing Co. 131:
132: Hamil plate 133: Milpin
134: Cylinder
140: Hot-valve plate 141: Third-Aware mounting plate
142: third B valve plate 143: third C valve plate
144: Hot valve gate
150: Injection product 151: Product appearance
152: Product rear
160: Steam generator 161: Supply line
162: discharge line 163: supply joint
164: exhaust joint 165: steam pipe
200: Rapid heating and cooling water
210: heating and cooling unit 211: heating and cooling water
212: sealing portion 213: sealing fixing portion
214: sealing groove 215: sealing material
216: steam supply hole 217: steam discharge hole
220: Parting line 221: Three-dimensional splitting surface
222: first B cavity bottom 223: bolt
241: Fixing bolt 242: Locking

Claims (10)

delete The first molding die 112 of the first die 110 has an outer shape corresponding to the outer appearance of the molding to be manufactured and is disposed opposite to the first die 110 and coupled with the first die 110 A second molding plate 122 which is a lower core corresponding to the inner surface of the injection mold to be manufactured in the corresponding second mold 120 and a heating medium for heating the first molding plate 112 or a cooling medium for cooling And a plurality of heating and cooling water passages passing through the plurality of heating and cooling water passages,
The first molding plate 112 is divided into a first A cavity 113 and a first B cavity 114 so as to improve the rapid heating and cooling efficiency and the first A cavity 113 has a rapid and uniform temperature The first mold plate 112 can be rapidly heated and cooled by providing the three-dimensional divided surface 221 closest to the molding surface with a constant thickness T1 so that control can be performed, The rapid heating and cooling water furnace 200 constitutes a rapid heating and cooling water furnace 200 which realizes a rapid heating and cooling water furnace 200 as a high gloss warm product. , Wherein the steam supply hole (216) and the steam discharge hole (217) are communicated with each other so that the heating, cooling, and air medium can be supplied or discharged through the steam supply passage (210). 3. The method of claim 2,
The first B cavity 114 is arranged in line with the first A cavity 113 and supports the rapid heating and cooling water path 200 of the first A cavity 113 and the sealing part of the first A cavity 113 And the sealing portion 212 prevents the heating and cooling of the rapid heating and cooling water path 200 and the air medium from being leaked, and the temperature sensor Wherein the steam generating unit (115) is installed to sense the temperature during rapid heating and cooling to induce the operation of the steam generator (160). delete delete 3. The method of claim 2,
The second mold 120 is coupled with the first molding plate 112 to form a cavity and a space block 124 and a second mounting plate 121 are formed below the second molding plate 122, A blanket 130 is positioned between the second forming plate 122 and the second mounting plate 121 to form a space in which the blanket 130 can be moved up and down, A hot valve plate 140 including a plurality of hot valve gates 144, including a third A-plate 141, a third B-valve plate 142, and a third C-valve plate 143 under the mounting plate 121, Is arranged to form an outer appearance of the second metal mold 120 and constitutes a spindle pin 133 capable of taking out the injection molded product 150. This is bound and taken out from the pick-up 130, Dimensional rapid heating and cooling structure of a metal mold is operated by a cylinder (134). The method according to claim 6,
The blanket 130 includes a top plate 131 and a bottom plate 132. The top plate 131 includes a bottom plate 133 for taking out the bottom plate 150. The bottom plate 133 includes a top plate 133, The second molding plate 122 and the second molding plate 122. The second molding plate 122 is mounted on the first molding plate 131 and the lower molding plate 132 and moves up and down, And the injection object (150) is pushed upward. delete An injection mold heating step of heating the mold to 120-180 DEG C through a mold-type start heating medium, an injection mold closing step of advancing the injection by closing the mold after completion of heating the mold, Molding mold surface heating injection step of heating the molding surface of the mold at a remelt temperature of 120 DEG C of the resin to develop a high gloss well dress of the injection mold at the time of injection and cooling the mold to 60 DEG C through a cooling medium after completion of injection A method for heating and cooling a mold comprising a mold cooling step, a mold air blower step for blowing the cooling medium of the mold to the air through an air medium, and a step for taking out the article after the mold is opened,
The mold 100 has an outer shape corresponding to the outer appearance of the injection mold to be manufactured on the first molding plate 112 which is an upper core of the first mold 110 and is disposed opposite to the first mold 110, And a second molding plate 122 which is a lower core corresponding to the inner surface of the injection mold to be manufactured in the corresponding second mold 120. The first molding plate 112 includes a first cavity 113 And a first B cavity 114. The first cavity 113 is configured to have a constant thickness T1 so that rapid and uniform temperature control can be performed and a three-dimensional divided surface 221, and a plurality of rapid heating and cooling water passages 200 are formed in the first forming plate 112 so that they can be rapidly heated, cooled, and air-blown through a heating medium, a cooling medium, and an air medium, respectively A three-dimensional rapid heating and cooling method of a mold. delete
KR1020150168464A 2015-11-30 2015-11-30 3D rapid heating and cooling structures and the method of the mold KR101824486B1 (en)

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CN113858552B (en) * 2021-10-12 2024-02-02 宁波均胜群英汽车系统股份有限公司 Co-molding technology for high-gloss surface and leather pattern surface on product
CN114228079A (en) * 2021-12-17 2022-03-25 南通天维机械设备有限公司 Electronic plastic mold capable of achieving rapid demolding and injection molding using method thereof
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