KR101930885B1 - A cooling device of metallic mold which applies the unemployed energy as power source - Google Patents

Abstract

The present invention relates to a mold cooling apparatus using idle energy and, more specifically, to a mold cooling apparatus using idle energy, which uses waste heat generated during a molding process as a power source, and simultaneously secures convenience and usability in a small size which can be simply attached to a part of a mold. According to the present invention, mold cooling the apparatus comprises: a box-type housing which is attached to a part of a mold to be used; a thermoelectric element which is provided in an inner space of the housing and emits cold air and heat by a reaction caused by thermal conduction; a conductive member which collects waste heat from the mold overheated during the molding process while being attached on the other part of the mold, and transfers the waste heat to the thermoelectric element; a cold air dissipating plate which is closely attached to one side of the thermoelectric element and draws and dissipates the cold air emitted from the thermoelectric element; a heat dissipating plate which is closely attached to the other side of the thermoelectric element and draws and dissipates heat emitted from the thermoelectric element; a first blowing fan which discharges the dissipated cold air to the outside while being arranged near the outside of the cooling plate, so as to have a flow in which the cold air is injected and circulated to the inside of the mold; and a second blowing fan which controls the overheating of the apparatus to be suppressed by discharging the dissipated heat to the outside while being arranged near the outside of the heat dissipating plate.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a mold cooling apparatus using idle energy,

The present invention relates to a mold cooling apparatus using idle energy, and more particularly, to a mold cooling apparatus using idle energy, and more particularly, to a mold cooling apparatus using idle energy, And to a mold cooling apparatus using idle energy for simultaneously ensuring the utilization of the mold.

A metallic mold is a metallic mold for molding a high-quality product having a complex shape by utilizing the plasticity and fluidity of a material. The metallic mold is formed by pressing a metal, injection molding a plastic, powder metallurgy, There are various types of molding.

In this case, when the molding sub-process is divided into three steps of filling / holding / cooling, taking the injection mold as an example, the design of the cooling system is very important because the cooling step takes the longest process time Do.

In other words, the design of the mold structure is based on the product model and the standard mold parts, and it follows a relatively defined procedure, and various research and commercial systems exist. On the other hand, the cooling system is based on the product design, and the optimization process is performed through the cooling analysis, and then the result is reflected. In consideration of the shape of the product, the shape is adapted to the conformal design Also, However, since the analysis process itself requires a lot of calculations, it takes a long time in the design process.

As such, designing cooling systems for injection molds can lead to design errors, even for highly skilled designers, and can result in design results that require excessive design time or do not meet design requirements.

Therefore, it is possible to reduce the design time and the design error of the mold by constructing the automatic designing system that supports the cooling system design easily and quickly in accordance with the cooling tube design standard (the cooling pipe diameter, the arrangement method, etc.) defined in designing the injection mold It will be possible.

Based on this technical idea, Korean Patent No. 10-1619909 discloses a method of cooling an injection mold by air-cooling to compensate for the disadvantages of using water or oil as a cooling medium, and installing and managing it by using air instead of high- The present invention relates to an air cooling system for an injection mold, and more particularly, to an air cooling system for an injection mold that can reduce the cost of an injection molding machine. The air cooling system includes a pre- Since it is not necessary to use compressed air by supplying it as a mold, installation cost and maintenance cost can be efficiently removed, and there is no concern that a scale is formed in the mold cooling hole, so that it is not necessary to check the mold due to scale, And the maintenance cost can be reduced. Further, when the cooling pipe and the hose of the injection mold are broken, It is possible to prevent the occurrence of a personnel accident or a secondary accident.

However, due to the various components for constructing the above-described air cooling system, such as the refrigeration cycle unit, the air supply unit, the line, the precooled unit, etc., and because of the complicated structure of the air cooling system, This has been an impossible problem.

Further, in order to construct an air cooling system having the above-described structure, it is necessary to secure a sufficient space for installation. Therefore, the design and installation of the air cooling system is insufficient due to the limitation of the installation space. The development of a cooling system is urgently required.

Korean Registered Utility Model No. 20-0276491 (Registered Date: May 25, 2002)

It is an object of the present invention to solve the above-mentioned problems, and to provide a method and apparatus for securing waste heat (heat source) from a mold that is overheated during a molding process, It is possible to circulate the cooling circuit inside the mold of releasing cool air based on device driving as well as device driving by producing electric power and ectric power, so that it is possible to build a cooling system that does not require a separate external power source (electric energy, etc.) And to provide a mold cooling apparatus using energy.

It is another object of the present invention to provide a compact size apparatus which achieves light weight, unlike a conventional cooling system in which cool air discharged by driving a device is used as a mold cooling source and a structure using cooling water is complicated and bulky And a mold cooling apparatus using idle energy capable of simultaneously using the space due to the simple attachment (and separation) use on a part of the mold, as well as ease of use.

According to an aspect of the present invention, there is provided a box-shaped housing, A thermoelectric element provided in the inner space of the housing, the thermoelectric element radiating cool air and heat by a reaction due to heat conduction; A conduction member attached to another part of the mold and recovering waste heat from the mold overheated during the molding process and transferring the waste heat to the thermoelectric element; A lumen which is in close contact with one side of the thermoelectric element to extract cold air emitted from the thermoelectric element and dissipate the heat; A heat dissipation plate for attracting and dissipating heat emitted from the thermoelectric element in a state of being closely attached to the other side of the thermoelectric element; A first blowing fan for blowing out the blowing cooler to the outside and having a flow of cold air injected and circulated into the inside of the blowing fan in a state of being disposed close to the outside of the blowing fan; And a second blower fan disposed in the vicinity of the outside of the heat sink to discharge the heat shield to the outside to suppress overheating of the device.

The housing may have an internal space capable of accommodating a plurality of components at the same time, wherein the internal space includes at least one of an arrangement of the blowing fan and the first blowing fan according to the vertical arrangement of the central portion of the thermoelectric element, And a second chamber in which an arrangement flow of the heat sink and the second blowing fan and a flow of heat released from the thermoelectric element are formed, A protruding type ejection opening is formed at one side of the cooling circuit so as to be smoothly injected into the cooling circuit in the mold, Is formed at the other end of the discharge port

In addition, the thermoelectric element exhibits a Peltier effect in response to waste heat recovered from the overheated metal mold to radiate cold air from one side and radiate heat from the other side, and furthermore, power generation that converts the heat source into electricity is enabled.

The conductive member is a copper plate made of copper as a heat transfer material. One end of the conductive member is in close contact with a part of the mold, and the other end of the conductive member is in close contact with one side of the thermoelectric element. So that the thermoelectric element is thermally conductive.

In addition, the flame retardant plate and the heat sink plate are made of aluminum, which is a heat transfer material, and have a plurality of blades vertically arranged at a predetermined interval to maximize the cooling efficiency of the cool air, and horizontally protruded horizontally to the outer side.

The first blowing fan and the second blowing fan are composed of a wing car that causes air flow, a casing that guides the air flow into and out of the wing car, and a close contact assembly that is closely attached to one end of the face plate.

In addition, the discharge port has a shape in which the inner area gradually becomes narrower from the first chamber and the diameter of the tip portion protruding to the outside becomes smaller, so that insertion communication connection into the cooling circuit becomes possible, The discharge speed of the cool air discharged from the first chamber is improved so as to increase the cool air circulation capability in the cooling circuit.

In addition, on the one side end portion and the lower side portion of the housing protruded from the discharge port, magnetism attracting metal is formed so that a plurality of the metal molds can be easily attached on the metal mold portion, And magnets are respectively embedded.

As can be clearly understood from the above description, the mold cooling apparatus using idle energy of the present invention recovers waste heat (heat source) from a mold that is inevitably overheated in the course of the injection process and uses the recovered waste heat as a power source for driving the apparatus It is possible to construct a cooling system of a mold which is driven by idle energy (waste heat) without requiring a separate external power source such as electric energy, and thus it is possible to secure energy and utilize renewable energy.

In addition, unlike conventional cooling systems, which have a complicated structure and occupy a large space in equipment (installation), achieving a lightweight, compact size device structure that can be directly attached to a mold, There is an effect of simultaneously satisfying the ease of use and the space utilization such that the device can be sufficiently provided even if only the minimum space for providing the mold is provided.

In addition, since cold air is used as a cooling source for cooling the mold, there is no need to connect the cooling water supply line, and there is no need to worry about the leakage of the cooling line. Therefore, the mold manufacturing process is quick and simple, There is an effect of maximizing the efficiency of the facility and there is no adverse effect on the environment because the refrigerant such as Freon is not used and it is light and small and has the effect of providing convenience and usability such as freely selecting the position of use and compatibility, It is a very useful invention that can greatly contribute to the development and activation of the related industry with the manufacturer by securing the product competitiveness by exerting various effects such as ensuring the durability of the apparatus by omitting the damaged mechanical parts.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a block diagram showing a structure of a mold cooling apparatus using idle energy according to the present invention; FIG.
BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a mold cooling apparatus using idle energy, and more particularly, to a mold cooling apparatus using idle energy.
3 is a use state diagram showing an embodiment of a mold cooling apparatus using idle energy according to the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those skilled in the art can easily carry out the present invention. First, in adding reference numerals to the constituents of the drawings, it is to be noted that the same constituents are denoted by the same reference numerals as much as possible even if they are displayed on different 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.

FIG. 1 is a view showing the structure of a mold cooling apparatus using idle energy according to the present invention. FIG. 2 is a sectional view of a mold cooling apparatus using idle energy according to the present invention. FIG. 3 is a state diagram illustrating an embodiment of a mold cooling apparatus using idle energy according to the present invention. FIG. 3 is an exploded perspective view illustrating the configuration of the first and second blowing fans.

As shown in FIGS. 1 and 2, the mold cooling apparatus A using idle energy according to the present invention includes a box-shaped housing 1 which is used for mounting on a part of a mold, A thermoelectric element (2) which radiates cold air and heat by a reaction in a state where the thermoelectric element (2) is in a state of being heated in a state where the thermoelectric element (4) for drawing out cold air radiated from the thermoelectric element (2) while being closely attached to one side of the thermoelectric element (2) A radiating plate 5 for attracting and dissipating heat radiated from the thermoelectric element 2 in a state of being closely attached to the other side of the plate 4 and discharging the radiating cool air to the outside in a state of being disposed close to the outside of the plate 4, So that cold air is injected and circulated inside. Is configured to include a first blowing fan (6) and a second blowing fan so that to discharge the heat dissipated to the external apparatus from overheating is suppressed in the state of closely arranged on the outer side of said heat sink (5) (6).

For reference, the mold m is complicatedly arranged with various parts such as a shape core, an ejector pin, a slide, a guide pin, and a bolt, 3, the fixed side mold plate m-1 and the movable side mold plate m-2 face each other with a take-out plate (not shown) interposed therebetween. Inside the fixed side mold plate m-1 and the movable side mold plate m-2, a cooling circuit for injecting and circulating the cooling source for cooling the mold, which is inevitably heated during the molding process, (m-10) are formed.

The housing 1 is provided with a single device constitution through the housing of the thermoelectric element 2, the flame retardant plate 4 and the heat sink 5, and the first blowing fan 6 and the second blowing fan 7 Which is attached to a part of a mold associated with a cooling circuit (also referred to as "cooling water"), together with an internal space in which the components can be accommodated simultaneously, A first chamber 1a in which the arrangements of the flame retardant plate 4 and the first blowing fan 6 and the discharge flow of cold air emitted from the thermoelectric element 2 are formed according to the vertical arrangement, And the second chamber 1b in which the arrangement of the second blowing fan 7 and the flow of the heat released from the thermoelectric element 2 are formed.

A protruding type discharge port 11 is formed at one end of the cooling chamber so as to be inserted into the cooling circuit at a predetermined depth for smooth discharge of cool air from the first chamber 1a into the cooling circuit in the mold , And a discharge port (12) for discharging the external heat generated in the second chamber (1b) is formed at the other end of the discharge port (11).

The discharge port 11 has a shape in which the inner area of the discharge port 11 gradually narrows from the first chamber 1b and the diameter of the tip portion protruding to the outside becomes smaller, So that the discharge speed of the cool air discharged from the first chamber 1a is improved and the cool air circulation capability in the cooling circuit (m-1) is increased.

The upper and lower sides of the one end of the discharge port 11 protrude are magnetically attracted to the metal so that they are simply attached to a part of the metallic mold m and bonded to each other, A plurality of magnets 13 are embedded.

The thermoelectric element 2 emits heat and cold simultaneously in response to a conduction heat source. The thermoelectric element 2 is a peltier effect which dissipates heat from one side in response to waste heat recovered from the overheated metal mold, effect and power generation that converts (sources) heat sources into electricity.

The conductive member 3 is used for heat conduction for recovering a heat source from an overheated injection mold according to an injection molding process and transferring the heat source to the thermoelectric element 2. The conductive member 3 is widely used as a heat conductor The copper plate is made of a copper material and one end thereof is in close contact with a part of the mold and the other end of the elongated portion is in close contact with one side of the thermoelectric element 2 to collect waste heat from the overheated metal mold, .

The flame retardant plate 4 is for dissipating the cold air emitted from the thermoelectric element 2 in a state of being closely attached to one side of the thermoelectric element 2 to the first chamber 1a, A plurality of fins which are made of widely known aluminum material and maximize the efficiency of the cooling of the cold air are vertically arranged at a predetermined interval and horizontally protruded horizontally to the outer room.

The heat dissipating plate 5 is for dissipating heat transferred from the thermoelectric element 2 into the second chamber 1b in a state of being closely attached to the other side of the thermoelectric element 2, And a plurality of vanes maximizing the efficiency of heat dissipation are vertically arranged at a predetermined interval and horizontally protruded from the outer chamber, respectively.

The first blowing fan 6 discharges cool air dissipated into the first chamber 1a through the blowing fan 4 to the outside of the housing 1 through the discharge port 11 and flows into the cooling circuit of the mold, And is formed of a casing which is closely attached to one end of the fl ange plate 4 in addition to the guide of an air flow entering and leaving the fl ange.

The second blowing fan 7 blows out the heat dissipated to the second chamber 1b through the heat sink 5 to the outside of the housing 1 through the discharge port 12 to suppress the overheating of the apparatus Like the first blowing fan 6, a wing car which causes the air to flow, and a casing which is tightly assembled with one end of the heat radiating plate 5 with guidance of the air flow entering and leaving the wing car.

(P) is a rubber packing provided at one end of the housing around the discharge port so as to prevent leakage of gas from the mutual adhered portion between the housing and the mold.

The operation of the mold cooling apparatus A using idle energy according to the present invention having the above-described structure will be described in detail as follows.

First, referring to FIGS. 1 and 2, a thermoelectric element 2, a flame retardant plate 4, a heat sink 5, and first and second blowing fans 6 and 7 are fixed to the inner space of the housing 1, Lt; RTI ID = 0.0 > position, < / RTI > respectively. On the other hand, the other end of the conductive member 3 is joined to one end of the thermoelectric element 2.

A compound is formed on the bonding surface of the thermoelectric element 2 and the flame retardant plate 4 and the bonding surface of the thermoelectric element 2 and the heat sink 5 and on the bonding surface of the mold m and the conductive member 3. [ So as to prevent deformation of the material due to heat or cold air, and to maintain the close contact state between the bonded materials.

A first blowing fan 6 is arranged on the outside of the flame retardant plate 4 and a second blowing fan 7 is arranged on the outside of the heat sink plate 5 in close proximity to each other and integrally formed with each other. (B) of the screw bolt.

Thereafter, the cooling device A according to the present invention in which the single device configuration is completed as described above is used as a cooling device for cooling the mold in a state where the cooling device A is attached to a part of the mold (one side end) 10, the discharge port 11 formed at one end of the housing 1 is inserted into the cooling circuit m-10 of the mold m, and the cooling circuit m- And is discharged by the thermoelectric element 2 so as to be communicated with the discharge chamber 11 and is discharged to the first chamber 1a by the flame plate 4 and then discharged by the first blowing fan 6 through the discharge port 11 And the cooling air flowing in the cooling circuit (m-10) is discharged into the cooling circuit (m-10).

Subsequently, the other end of the conductive member 3 is attached to the other part of the mold m so that waste heat (heat source) can be recovered from the mold which is overheated during the subsequent molding process. As a result, in response to the heat source transmitted from the conductive member 3, a cool air is emitted to one side (first chamber side) of the thermoelectric element 2 and heat is emitted to the other side (second chamber side) . ≪ / RTI >

The housing 1 attached to a part of the mold m as described above can be maintained in its attached state by the magnetism of the magnet 13 provided on the close-contact side portion.

In this state, the injection molding process proceeds and the mold is overheated in accordance with such a molding process. As a result, waste heat (heat source) due to overheating of the mold is recovered by the conductive member 3 and the heat transferred to the thermoelectric element 2 The heat and the cold air are emitted to both sides of the thermoelectric element 2, respectively.

The cool air emitted from one side of the thermoelectric element 2 is dissipated to the first chamber 1a side by the flotation plate 4 and is then discharged by the first blowing fan 6 to the discharge port The injection and circulation to the cooling circuit (m-10) are performed by the movement flow of the cooling circuit (m-10) because the discharge port 11 is inserted into the cooling circuit So that mold cooling is finally possible.

The heat dissipated from the other side of the thermoelectric element 2 is dissipated to the second chamber 1b side by the heat sink 5 and then discharged to the outlet 12 of the housing 1 by the second blowing fan 7 To the outside of the cooling device (A) of the present invention.

In addition, a heat source that is thermally conducted from the thermoelectric element 2 is converted into electric power (electric energy), and the first and second blowing fans 6 and 7 are driven by the generated electric power, .

In summary, according to the mold cooling apparatus (A) using idle energy according to the present invention, the waste heat is recovered from the overheated mold (m) and the cool air emitted from the thermoelectric element (2) Cooling and Conversion of Used Molds As the device can be operated using the generated power, the mold can be cooled without requiring an external power source.

In addition, it is possible to easily and easily attach the housing (1), which has achieved weight reduction and miniaturization, to a part of the mold (m), and it is possible to attach to various molds structurally in accordance with this relationship. The effect of providing, as well as providing a new paradigm for building a cooling system, can be achieved.

It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit and scope of the invention as defined by the appended claims. will be. Therefore, the embodiments disclosed in the present invention and the accompanying drawings are intended to illustrate and not to limit the technical spirit of the present invention, and the scope of the technical idea of the present invention is not limited by these embodiments and the accompanying drawings . The scope of protection of the present invention should be construed according to the following claims, and all technical ideas within the scope of the claims should be construed as being included in the scope of the present invention.

A: cooling device, 1: housing, 1a: first chamber
1b: second chamber, 2: thermoelectric element, 3: conductive member
4: room laminator, 5: heat sink, 6: first blower fan
7: second blowing fan, 11: discharge port, 12: discharge port
13: Magnet

Claims (8)

Boxed housing used on part of mold;
A thermoelectric element provided in the inner space of the housing, the thermoelectric element radiating cool air and heat by a reaction due to heat conduction;
A conduction member attached to another part of the mold and recovering waste heat from the mold overheated during the molding process and transferring the waste heat to the thermoelectric element;
A lumen which is in close contact with one side of the thermoelectric element to extract cold air emitted from the thermoelectric element and dissipate the heat;
A heat dissipation plate for attracting and dissipating heat emitted from the thermoelectric element in a state of being closely attached to the other side of the thermoelectric element;
A first blowing fan for blowing out the blowing cooler to the outside and having a flow of cold air injected and circulated into the inside of the blowing fan in a state of being disposed close to the outside of the blowing fan; And
And a second blower fan disposed adjacent to the outside of the heat sink to discharge the heat shield to the outside to suppress overheating of the device,
Wherein the housing has an internal space capable of accommodating a plurality of components at the same time, wherein the internal space includes at least one of an arrangement of the blowing fan and the first blowing fan in accordance with vertical arrangement of the central portion of the thermoelectric element, A first chamber in which a cool air discharge flow is formed, a second chamber in which an arrangement of the heat sink and the second blower fan and a discharge flow of heat emitted from the thermoelectric element are formed,
A protruding type ejection opening is formed at one side of the cooling chamber so as to be inserted into the cooling circuit at a predetermined depth in order to smoothly inject cool air into the cooling circuit in the mold,
And an outlet for external discharge of the heat formed in the second chamber is formed at the other end of the discharge port.
delete The method according to claim 1,
Wherein the thermoelectric element has a Peltier effect in response to waste heat recovered from the overheated mold to radiate cold air from one side and radiate heat from the other side, Mold cooling system using idle energy.
The method according to claim 1,
The conductive member is a copper plate made of copper, which is an amount of heat,
Wherein one end of the mold is in close contact with a part of the mold and the other end of the mold is in close contact with one side of the thermoelectric element to collect heat from the overheated mold and conduct heat to the thermoelectric element. .
The method according to claim 1,
The flame retardant plate and the heat sink are formed of aluminum as a heat transfer material and have a plurality of blades vertically arranged at a predetermined interval to maximize the cooling efficiency of the cool air, Mold cooling system using idle energy.
The method according to claim 1,
Wherein the first blowing fan and the second blowing fan include a blades for causing a flow of air,
And a casing which is closely assembled to one end of the fl age plate and guiding the air flow entering and leaving the blades.
The method according to claim 1,
The discharge port has a shape in which the inner area from the first chamber is gradually narrowed and the diameter of the tip portion protruding outward becomes smaller,
So that insertion of the cooling circuit into the cooling circuit can be established, and the discharge speed of the cool air discharged from the first chamber is improved, thereby increasing the cool air circulation capability in the cooling circuit. Cooling device.
The method according to claim 1,
A plurality of magnets are provided on one side of the housing and the lower side of the housing on which the discharge ports protrude so as to be easily attached to a part of the metal mold, Wherein the mold cooling apparatus comprises:

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