KR20140016692A - Injection mold temperature control device using thermo electric module and injection mold comprising of the same - Google Patents

Abstract

The present invention relates to an injection mold temperature control device using a thermoelectric device and an injection mold including the same. The injection mold temperature control device using a thermoelectric device according to the present invention comprises a planar thermoelectric device emitting heat absorbed in one side to the other side by using the Peltier effect according to the supply of direct current through a wire connected to one end; an upper case receiving the thermoelectric device in contact with one side and delivering the heat received from a specific heat source of the injection mold to one side of the thermoelectric device; and a lower case combined with the upper case in a detachable manner in the state of receiving the thermoelectric device in contact with the other side, and having a first cooling water channel, where cooling water for receiving the heat emitted through the other side of the thermoelectric device and emitting the heat to outside passes, formed to penetrate therein.

Description

TECHNICAL MOD TEMPERATURE CONTROL DEVICE USING THERMO ELECTRIC MODULE AND INJECTION MOLD COMPRISING OF THE SAME}

The present invention relates to a mold temperature control apparatus using a thermoelectric element and a mold including the same, and more particularly, to a cavity of an injection mold into which molten synthetic resin, which is a molding material of an injection product, is injected using at least one thermoelectric element. The present invention relates to a mold temperature control apparatus using a thermoelectric element used to cool or heat a vicinity, and a mold including the same.

In general, injection molds are mainly used to mass-produce injection products made of synthetic resin. In the injection mold, a cavity corresponding to the shape of the injection product is formed at a portion where the pair of molds are coalesced, and the molten synthetic resin is injected and cooled to solidify to produce the injection product.

In this case, when the injection-filled synthetic resin melted at a high temperature into the cavity, the temperature of the inside of the injection mold, particularly around the cavity, also increases due to the melted resin being filled. When the temperature of the injection mold rises, a change in the size of the mold or a warpage occurs, which makes it difficult to produce precise injection products. In addition, in order to take out the injection product from the injection mold, it is necessary to cool the injection mold sufficiently to solidify the injection molded product. The cooling time of the injection mold is much longer than the filling time of the molten synthetic resin, thereby improving the production time of the injection product, that is, production efficiency. It will depend.

  Therefore, in order to reduce the injection product cooling time while reducing the above-described problems, conventionally, a method of installing a cooling pipe, that is, a cooling water channel inside the injection mold, and supplying cooling water into the cooling water channel has been used.

 However, in the case of injection molds having a core with a small volume or a complex cavity designed for the production of small precision injection parts or complex shaped injection parts, a cooling pipe is placed inside the core near the cavity, which requires rapid cooling of the injection product. There is a problem in that the cooling efficiency is low because there is a space constraint that is difficult to insert.

In order to solve this problem, the invention of "Injection Molding Machine Using Thermoelectric Device" introduced in Korean Patent Laid-Open Publication No. 10-2009-0090059, which is a patent document of the above-mentioned prior art document, has been proposed as a prior art.

The prior art on the proposed patent document has a structure in which a small thermoelectric element and a heat sink are continuously inserted and arranged in a lower die plate and the like adjacent to a cavity of an injection mold filled with molten synthetic resin. This structure allows the prior art to absorb heat at one end near the cavity by using the Peltier effect of the thermoelectric element generated by the supply of DC power, and to release heat to the heat sink in contact with the other end. Overcoming the limitations and cooling of the injection mold is described as more efficient.

However, the prior art on the patent document is excessively interpreted the problems of the cooling pipe inserted into the injection mold (see the patent document background technology identification number), the patent document as shown in Figure 2 the injection mold The cooling pipes with water-cooled heat exchange inside were completely removed and replaced by thermoelectric elements and heat sinks.

For this reason, the prior art described in the patent document is a problem that the cooling efficiency is not significantly improved by cooling the heat transferred from the lower plate by the thermoelectric element to the heat sink through a heat sink such as a metal material having a lower cooling efficiency than the water cooling method. There is this.

In addition, the prior art described in the patent document has a problem that the insert installation and compatible use is not possible in the conventional mold that the cooling pipe, that is, the cooling water channel is inserted therein.

KR 10-2009-0090059 A

Accordingly, the problem to be solved by the present invention is to solve the above problems, adjacent to the cavity of the injection mold having a core formed with a small volume or complex cavity designed for the production of small precision precision injection products or complex shaped injection products Mold temperature control device using a thermoelectric element that can be installed in the vicinity of the mold temperature control device using a thermoelectric element and easily connected to the cooling pipe, that is, the cooling water channel to improve the cooling efficiency to improve the production efficiency of the injection product and this It is to provide a mold containing.

In addition, another problem to be solved by the present invention is to solve the above problems to facilitate heat exchange between the vicinity of the cavity and the coolant channel only by a simple design change of the injection mold installed in the conventional cooling pipe, that is, the coolant channel inserted therein. It is possible to provide a mold temperature control apparatus using a thermoelectric element that can be installed inside the mold temperature control apparatus using a thermoelectric element that can further improve the cooling efficiency of the existing injection mold and a mold including the same.

Mold temperature control apparatus using a thermoelectric element according to the present invention for solving the above problems is a plate-type thermoelectric element that emits heat absorbed to one side to the other side by using the Peltier effect according to the supply of DC current through a wire connected to one end A top case which receives one surface of the thermoelectric element and receives heat from a specific heat source of the mold and transfers the heat to one surface of the thermoelectric element; And a lower case through which the first cooling water channel through which the cooling water passes through to receive the heat emitted through the other surface of the thermoelectric element and passes through to discharge the heat to the outside.

The first cooling water channel may be formed through the inside of the lower case through a mechanical processing method.

Preferably, the first cooling water channel is blocked by the blocking member, except for the cooling water inlet and the cooling water outlet.

The lower case may expose the cooling water inlet and the cooling water outlet to the outside on the opposite or side surface of the contact surface with the thermoelectric element.

The upper case may have a first thermoelectric element fixing part for fixing the thermoelectric element in which one surface is contacted and received.

The lower case may be provided with a second thermoelectric element fixing portion for fixing the thermoelectric element that the other surface is in contact.

The first thermoelectric element fixing part and the second thermoelectric element fixing part are each formed as a locking jaw or a locking groove, and are preferably engaged with each other.

The apparatus for controlling temperature of a mold using the thermoelectric element may further include a controller provided outside the mold and connected to the other end of the wire to control a current and a voltage supplied through the wire.

Preferably, the upper case and the lower case are each made of a thermally conductive metal.

In addition, a mold including a mold temperature control apparatus using a thermoelectric element according to the present invention for solving the above problems is a fixed template and a fixed template in which a runner, which is an injection path of molten resin injected through a sprue, is accommodated therein. A first mold including a first upper core coupled to an upper portion of the first mold, the second mold being disposed to face each other and being opened or closed by relative movement with the first mold, and having a cooling water therethrough; A movable upper plate having a coolant channel formed therein, and a second upper core coupled to an upper portion of the movable plate and having a cavity filled with the molten resin injected into a contact surface with the first upper core when mold closing. 2 mold and the above-mentioned thermoelectric element which is detachably received and coupled between the second upper core and the movable template. And a mold temperature controller, wherein the mold temperature controller is in contact with one surface of the upper case to the second upper core, and the coolant inlet and the coolant outlet of the first coolant channel are connected to the second coolant channel. Is connected to.

The movable template may be open toward the first mold and have a mold temperature control device accommodating part accommodating and coupling the mold temperature control device.

The movable template is opened toward the first mold and receives and engages at least a portion of the second upper core such that a rear surface is in contact with a front surface of the upper case of the mold temperature apparatus accommodated in the mold temperature adjusting unit accommodating portion. 2 upper core receiving portion may be formed.

The movable template may further include a wire receiving groove accommodating the wire passing through the other end of the wire, one end of which is connected to the thermoelectric element, to be connected to the outside.

The second mold may further include a spacer coupled to a rear surface of the movable template, and the wire receiving groove may be formed between the movable template and a coupling surface of the spacer.

The wire receiving groove may be formed by mechanical processing on the spacer coupling surface of the movable template after separating the movable template and the spacer when the second mold is a conventionally manufactured mold.

The wire accommodating groove may be formed to penetrate through a portion of the mold temperature adjusting device accommodating portion.

The wire receiving groove may be formed through a part of the mold temperature regulating device accommodating portion by mechanical processing in a state in which the second mold is a conventionally manufactured mold and separated from the second cooling water channel.

The second cooling water channel is the first cooling water by mechanically processing the movable template of the corresponding portion of the cooling water inlet and the cooling water outlet of the first cooling water channel when the second mold is a conventionally manufactured mold. It is desirable to interconnect with the channel.

Preferably, the mold temperature control device accommodating part is formed to be separated from the second cooling water channel.

Preferably, the mold temperature adjusting device accommodating part is formed in a predetermined region of the second mold by mechanical processing so that the second mold is a conventionally manufactured mold and separated from the second cooling water channel.

As described above, according to the apparatus for controlling a mold temperature using a thermoelectric element and a mold including the same, a cavity having a small volume or a complicated shape designed for producing a small precision injection product or an injection molded product having a complicated shape is formed. Advantages of improving the production efficiency of injection products by improving the cooling efficiency by installing a mold temperature control device using a thermoelectric element near the cavity of the injection mold having a core and easily connecting it to a cooling pipe, that is, a cooling water channel. There is.

In addition, according to the mold temperature control apparatus using a thermoelectric element according to the present invention and a mold including the same, according to the conventional cooling pipe, that is, the heat exchange between the vicinity of the cavity and the cooling water channel only with a simple design change of the injection mold installed with the cooling water channel inserted therein. Since the mold temperature control apparatus using the thermoelectric element which can facilitate the insertion can be inserted into the inside, there is an advantageous effect of further improving the cooling efficiency of the existing injection mold.

1 and 2 are respectively a perspective view and an exploded perspective view of a mold temperature control apparatus using a thermoelectric element according to an embodiment of the present invention,
3 is a perspective view of a combined mold temperature control apparatus using a thermoelectric element according to an embodiment of the present invention as viewed from the opposite direction of FIG.
Figure 4 is an internal perspective view of the lower case shown in Figure 2,
5 and 6 are respectively a perspective view and an exploded perspective view of a mold including a mold temperature control apparatus using a thermoelectric element according to an embodiment of the present invention,
FIG. 7 is an internal perspective view of a mold including a mold temperature control apparatus using a thermoelectric element according to an embodiment of the present invention illustrated in FIG. 5;
FIG. 8 is a cross-sectional view of a mold including a mold temperature control apparatus using a thermoelectric element according to an embodiment of the present invention, taken along line AA of FIG. 5, and
FIG. 9 is a cross-sectional view of a mold including a mold temperature control apparatus using a thermoelectric element according to an exemplary embodiment of the present disclosure, taken along line BB of FIG. 7.

The details of other embodiments are included in the detailed description and drawings.

BRIEF DESCRIPTION OF THE DRAWINGS The advantages and features of the present invention, and how to accomplish them, will become apparent by reference to the embodiments described in detail below with reference to the accompanying drawings. However, the present invention is not limited to the embodiments disclosed below, but may be implemented in various other forms, and it should be understood that the present embodiment is intended to be illustrative only and is not intended to be exhaustive or to limit the invention to the precise form disclosed, To fully disclose the scope of the invention to a person skilled in the art, and the invention is only defined by the scope of the claims.

Like reference numerals refer to like elements throughout. Embodiments described herein will be described with reference to the ideal perspective, perspective and cross-sectional views of the present invention.

Hereinafter, a mold temperature control apparatus using a thermoelectric element and a mold including the same will be described with reference to the accompanying drawings.

The description focuses on the structure of the mold temperature apparatus using the thermoelectric element according to the embodiment of the present invention and the specific coupling relationship between the mold and the other configuration while explaining the entire mold according to the embodiment of the present invention. 1 to 9 will be described in detail.

1 and 2 are respectively a perspective view and an exploded perspective view of a mold temperature control apparatus using a thermoelectric device according to an embodiment of the present invention, Figure 3 is a thermoelectric device according to an embodiment of the present invention as viewed from the opposite direction of FIG. Combined perspective view of the mold temperature control device using, Figure 4 is an internal perspective view of the lower case shown in Figure 2, Figures 5 and 6 each includes a mold temperature control device using a thermoelectric element according to an embodiment of the present invention Combined perspective view and exploded perspective view of the mold, Figure 7 is an internal perspective view of a mold including a mold temperature control device using a thermoelectric element according to an embodiment of the present invention shown in Figure 5, Figure 8 is a line AA of Figure 5 Sectional view of a mold including a mold temperature control apparatus using a thermoelectric element according to an embodiment of the present invention shown in cut, and Figure 9 is a cut along the line BB of Figure 7 of the present invention Conducted a cross-sectional view of a mold comprising a mold temperature control using a thermoelectric device according to the example.

As shown in FIGS. 1 to 9, a mold 1 including a mold temperature adjusting device using a thermoelectric device according to an embodiment of the present invention includes a mold temperature adjusting device 100, a first mold 200, and a mold. The temperature control device 100 is accommodated therein and includes a second mold 300 that is opened or closed by relative movement with the first mold 200.

The mold temperature control apparatus 100 includes an upper case 110, a lower case 120, and a thermoelectric element 130 and a controller 140 accommodated and coupled between the upper case 110 and the lower case 120. 7 to 9 are accommodated in the mold temperature control unit accommodating part 332 of the movable template 330 in contact with the rear surface of the second upper core 340 in which the cavity is formed. have. The mold temperature control apparatus 100 absorbs heat generated by molten resin injected into a cavity on a joint surface of the first mold 200 and the second mold 300 when the mold 1 is closed, and molds the mold. (1) It is released to the outside to cool the molten resin in a short time to improve the production efficiency of the injection product 10, and by maintaining the temperature of the mold (1) properly to prevent deformation and breakage and thereby Improve precision.

The upper case 110 is made of a thermal conductive metal material having excellent thermal conductivity such as aluminum or an alloy of aluminum and copper, and the cooling unit 'c', which is the front portion of the thermoelectric element 130, is shown in FIG. The first thermoelectric element fixing part 111 provided as a locking jaw or a locking groove for accommodating contact is formed and is in contact with a rear surface of the second upper core 340. The upper case 110 receives heat generated by the molten resin injected into the cavity from the second upper core 340 and transmits the heat generated by the molten resin to the cooling unit 'c' of the thermoelectric element 130 in contact.

The lower case 120 is also made of a thermally conductive metal material having excellent thermal conductivity such as aluminum or an alloy of aluminum and copper, and as shown in FIG. 2, the heating part 'h' which is the rear part of the thermoelectric element 130 is provided. A second thermoelectric element fixing part 121 is formed as a locking jaw or a locking groove for receiving a contact and is engaged with the first thermoelectric element fixing part 111 and formed therein, and the bolt fastening hole 128 corresponding to a predetermined position is formed. Removably coupled to the upper case 110 by a fastening bolt 129 is fastened to. The lower case 120 is accommodated in a state in which the rear surface is in contact with the mold temperature control unit receiving portion 332 of the movable template 330.

The lower case 120 has a wire passing groove 122 through which one end of the wire 132 connected to the thermoelectric element 130 passes, and has a first cooling water channel through which the coolant introduced from the outside passes. 123 is formed through.

As shown in FIG. 4, the first coolant channel 123 is formed through the inside of the lower case 120 in the horizontal direction by mechanical processing, and the coolant is introduced and discharged in the back direction. The inlet part 124 and the cooling water outlet part 125 are exposed, and the other part exposed to the outside by the mechanical process is provided with the blocking member 126 for blocking the leakage of cooling water. The blocking member 126 may be a known component such as an onslaught or a sealing member.

 The coolant inlet 124 and the coolant outlet 125 may be exposed in the lateral direction of the lower case 120 in consideration of an arrangement position of the second coolant channel 338 to be described later.

When the first cooling water channel 123 is formed by a mechanical processing method such as a drilling process and the unnecessary leakage portion is blocked by the blocking member 126, the first cooling water channel 123 is very easily formed inside the lower case 120. There is an advantage to this.

The thermoelectric element 130 is called a Peltier element, a Thermo Electric Cooler (TEC), a Thermo Electric Module (TEM), etc., and is a generic term for a device using a phenomenon in which heat and electricity are converted to each other. In the present invention, by using the Peltier effect, the thermoelectric element 130 is provided with a current and voltage controlled by the controller 140 which is a controller connected to the other end located outside of the anode line and the cathode line, which are connected to one end of the wire 132. It plays the role of HEAT PUMP. That is, the upper case 110 absorbs heat from the upper case 110 in contact with the second upper core 340, which is a heat source, to the cooling unit 'c', and then contacts the inside of the lower case 120 through the heating unit 'C'. Heat is transferred to the coolant passing through the first coolant channel 123 formed.

The first mold 200 includes a first fixing plate 210, a fixing template 230, and a first upper core 240.

The first fixing plate 210 is a plate for fixing and attaching the first mold 200 to the injection apparatus, and a sprue 212 having an injection machine nozzle (not shown) for injecting a molten resin into a rear center portion thereof is formed.

The fixing template 230 is coupled to the upper portion of the first fixing plate 210 and has a runner 214 which is an injection path of molten resin formed therein, and a guide pin receiving groove 235 is formed at the corner portion.

The first upper core 240 has a recessed cavity corresponding to one side shape of the injection product 10 formed thereon, and the recessed cavity has the other side of the injection product 10 formed on the upper portion of the second upper core 340. It is combined with the recessed cavity corresponding to the shape to form a cavity 'cavity' corresponding to the shape of the injection product 10.

The second mold 300 is disposed to face the first mold 200 to be opened or closed by relative movement with the first mold 200, and the second fixing plate 310, the spacer 315, and the sealing plate ( 320, a return pin 325, a movable template 330, a guide pin 335, and a second upper core 340.

The second fixing plate 310 fixedly attaches the second mold 300 to the injection apparatus so as to face the first mold 200.

The spacer 315 is coupled to the upper portion of the second fixing plate 310 and provides a linear movement space of the contact plate 320 to be described later.

The wheat plate 320 is located in the upper space of the second fixing plate 310 formed by the spacer 315, and is connected to the front end of the mold 1 when the mold 1 moves forward, and is coupled to the front end and extends into the cavity (not shown). ), The ejected injection product 10 is taken out of the cavity.

The return pin 325 is coupled to the mill plate 320 so as to protrude upward from the movable mold 330, and the first upper part when the mold 1 is closed when protruded by the forward movement of the mill plate 320. By contacting the front portion of the core 240 to retreat to retract the mill 320 so that the protruding mill pin (not shown) retreat back into place.

Movable template 330 is coupled to the upper portion of the spacer 315, the mold temperature control device receiving portion (in the front center portion to receive the mold temperature control device 100 and a portion of the second upper core 340 in sequence) 332 and the second upper core receiving portion 334 are sequentially recessed. The mold temperature adjusting device accommodating part 332 should be formed separately from the second cooling water channel 338, and in particular, when the second mold 300 is a conventionally manufactured mold that does not intend to couple the mold temperature adjusting device 100. Edo may be easily formed while maintaining a state of separation from the second cooling water channel 338 between the movable template 330 and the second upper core 340 through mechanical processing.

Guide pins protruding toward the front side of the movable template 330 and accommodated in the guide pin receiving grooves 235 during mold closing to align the positions of the first mold 200 and the second mold 300 with each other. 335 is combined. In addition, the movable template 330 has a second coolant channel 338 connected to the first coolant channel 123 therein, and a part of the wire 132 connected between the thermoelectric element 130 and the controller 140. The wire receiving groove 336 for accommodating the through is formed.

The second coolant channel 338 is a coolant inlet 124 of the first coolant channel 123, even in the case where the second mold 300 is a conventionally manufactured mold in which the mold temperature adjusting device 100 is not scheduled. And the movable template 330 of the corresponding portion with the coolant outlet 125 may be easily formed by mechanical processing and easily connected to the first coolant channel 123 without leaking through a sealing operation.

As shown in FIGS. 7 and 9, the wire receiving groove 336 is separated from the second cooling water channel 338, and the movable template 330 is placed in a direction perpendicular to the plate surface. It is preferable in view of the convenience of processing and the like to be formed through a portion of the 332 and formed as a recessed groove between the engaging surface with the spacer 315 to accommodate a portion of the wire 132.

In particular, even when the second mold 300 is a conventionally manufactured mold that is not scheduled to be coupled with the mold temperature control device 100, the second mold water channel 338 and the second coolant channel 338 are separated after the movable mold 330 and the spacer 315 are separated. The movable template 330 may be formed to penetrate the plate surface in a vertical direction to maintain the separated state, and a recessed groove may be easily formed between the engagement surface with the spacer 315 by mechanical processing.

A part of the second upper core 340 is accommodated in the second upper core receiving part 334 to contact the upper case 110 of the mold temperature adjusting device 100 accommodated in the mold temperature adjusting device receiving part 332. The depression cavity corresponding to the other side shape of the injection molded product 10 is formed in the upper part.

According to the mold temperature control apparatus 100 and the mold 1 including the thermoelectric element according to the present invention as described above, the production of a small precision injection product 10 or a complicated injection molding product 10 The mold temperature control device 100 using the thermoelectric element 130 is additionally installed near the cavity of the injection mold having the cores 240 and 340 having the small-volume or complex-shaped cavity designed therefor, and the movable template 330. By easily connecting to the second cooling water channel 338, there is an advantageous effect of improving the cooling efficiency to improve the production efficiency of the injection product 10.

In addition, according to the mold temperature control apparatus 100 using the thermoelectric element and the mold 1 including the same according to the present invention, the cavity is formed only by a simple design change of the injection mold in which the conventional second cooling water channel 338 is inserted therein. A mold temperature control device 100 having a thermoelectric element 130 and a first coolant channel 123, etc., which can facilitate heat exchange between an adjacent vicinity and the second coolant channel 338, can be inserted and installed therein. There is an advantageous effect that can further improve the cooling efficiency of the existing injection mold.

On the other hand, the mold temperature control device 100 in the above embodiment was used to lower the temperature of a specific part of the mold 1, such as the cavity, but the external temperature such as winter, the need to increase the temperature of the specific part of the mold (1) If there is, the control unit 140 may raise a specific part of the mold 1 to a desired temperature by flowing a DC current opposite to the above to the thermoelectric element through the wire 132.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments, And falls within the scope of the invention.

1: mold 10: injection product
100: mold temperature controller 110: upper case
111, 121: thermoelectric element fixing portion 120: lower case
122: wire passage groove 123: first coolant channel
124: coolant inlet 125: coolant outlet
126: blocking member 128: bolt fastening hole
129: fastening bolt 130: thermoelectric element
132: wire 140: control unit
200: first mold 210: first fixing plate
212: Sprue 214: Runner
230: fixed template 235: guide pin receiving groove
240: first upper core 300: second mold
310: second fixing plate 315: spacer
320: plate 325: return pin
330: movable template 332: mold temperature control unit accommodating part
334: second upper core receiving portion 335: guide pin
336; Wire receiving groove 338: second coolant channel
340: second upper core

Claims (20)

Plate-type thermoelectric element that emits heat absorbed to one side to the other side by using the Peltier effect according to the supply of current through the wire connected to one end,
An upper case which receives one surface of the thermoelectric element and receives heat from a specific heat source of the mold and transfers the heat to one surface of the thermoelectric element, and
The first cooling water channel is detachably coupled to the upper case in a state in which the other surface of the thermoelectric element is in contact and accommodated, and a first coolant channel through which coolant passes through the other surface of the thermoelectric element and receives heat to be discharged to the outside. Lower case penetrated inside
Containing
Mold temperature control device using thermoelectric elements. In claim 1,
The first coolant channel is
Is formed through the inside of the lower case through a mechanical processing method
Mold temperature control device using thermoelectric elements. 3. The method of claim 2,
The first coolant channel is
Except for the coolant inlet and the coolant outlet, the connection between the outside is blocked by the blocking member.
Mold temperature control device using thermoelectric elements. 4. The method of claim 3,
The lower case is
The coolant inlet and the coolant outlet are exposed to the outside on the opposite or side surface of the contact surface with the thermoelectric element.
Temperature control device of mold using thermoelectric element. In claim 1,
The upper case
The first thermoelectric element fixing portion for fixing the thermoelectric element that one surface is in contact receiving is formed
Mold temperature control device using thermoelectric elements. The method of claim 5,
The lower case is
The second thermoelectric element fixing portion for fixing the thermoelectric element in contact with the other surface is formed
Mold temperature control device using thermoelectric elements. The method of claim 6,
The first thermoelectric element fixing part and the second thermoelectric element fixing part
Each is formed as a locking jaw or a locking groove,
Interlocking combined
Mold temperature control device using thermoelectric elements. In claim 1,
It is provided on the outside of the mold, connected to the other end of the wire control unit for controlling the current and voltage supplied through the wire
Further comprising
Mold temperature control device using thermoelectric elements. In claim 1,
The upper case and the lower case
Each thermally conductive metal
Mold temperature control device using thermoelectric elements. A first mold including a fixed template in which a runner, which is an injection path of molten resin injected through a sprue, and a first upper core coupled to an upper portion of the fixed template,
It is disposed opposite to the first mold and opened or closed by relative movement with the first mold, and coupled to the movable template and the upper portion of the movable template having a second cooling water channel through which cooling water passes. And a second mold including a second upper core having a cavity filled with the molten resin injected into a contact surface with the first upper core when mold closing, and
A mold temperature control apparatus using the thermoelectric element of any one of claims 1 to 9, which is detachably received and coupled between the second upper core and the movable template.
Including;
The mold temperature control device
One surface of the upper case is in contact with the second upper core,
The coolant inlet and the coolant outlet of the first coolant channel are connected to the second coolant channel.
Mold comprising a mold temperature control device using a thermoelectric element. 11. The method of claim 10,
The movable template is
A mold temperature adjusting device accommodating part is opened toward the first mold and accommodates and combines the mold temperature adjusting device.
Mold comprising a mold temperature control device using a thermoelectric element. 12. The method of claim 11,
The movable template is
A second upper core accommodating at least a portion of the second upper core open to the first mold and having a rear surface in contact with a front surface of the upper case of the mold temperature unit accommodated in the mold temperature adjusting unit accommodating portion; Adjoining
Mold comprising a mold temperature control device using a thermoelectric element. 11. The method of claim 10,
The movable template is
At least a portion of the wire receiving groove for receiving the wire passing through the other end of the wire is connected to the outside is connected to the thermoelectric element is further formed
Mold comprising a mold temperature control device using a thermoelectric element. In claim 13,
The second mold is
Further comprising a spacer coupled to the rear of the movable template,
The wire receiving groove is formed between the engaging surface of the movable template and the spacer
Mold comprising a mold temperature control device using a thermoelectric element. The method of claim 14,
The wire receiving groove
In the case where the second mold is a conventionally manufactured mold, the second mold is formed by mechanical processing on the spacer coupling surface of the movable template after separating the movable template and the spacer.
Mold comprising a mold temperature control device using a thermoelectric element. The method of claim 13,
The wire receiving groove
Is formed penetrating with a portion of the mold temperature control unit accommodation portion
Mold comprising a mold temperature control device using a thermoelectric element. 17. The method of claim 16,
The wire receiving groove
In the case where the second mold is a conventionally manufactured mold, the second mold is penetrated by a mechanical process with a part of the mold temperature control device accommodating part in a state separated from the second cooling water channel.
Mold comprising a mold temperature control device using a thermoelectric element. 11. The method of claim 10,
The second coolant channel is
When the second mold is a conventionally manufactured mold, the movable template of the corresponding portion of the cooling water inlet and the cooling water outlet of the first cooling water channel are respectively interconnected with the first cooling water channel by mechanical machining.
Mold comprising a mold temperature control device using a thermoelectric element. 11. The method of claim 10,
The mold temperature control unit accommodating portion is formed to be separated from the second cooling water channel.
Mold comprising a mold temperature control device using a thermoelectric element. In claim 19,
The mold temperature control unit accommodating part
When the second mold is a conventionally manufactured mold, the second mold is formed in a predetermined region of the second mold by mechanical processing so as to be separated from the second cooling water channel.
Mold comprising a mold temperature control device using a thermoelectric element.

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