KR101208807B1 - Cooler of temperature controller for injection mold and temperature controller for injection mold - Google Patents

Cooler of temperature controller for injection mold and temperature controller for injection mold Download PDF

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Publication number
KR101208807B1
KR101208807B1 KR1020100062304A KR20100062304A KR101208807B1 KR 101208807 B1 KR101208807 B1 KR 101208807B1 KR 1020100062304 A KR1020100062304 A KR 1020100062304A KR 20100062304 A KR20100062304 A KR 20100062304A KR 101208807 B1 KR101208807 B1 KR 101208807B1
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KR
South Korea
Prior art keywords
fluid
cooling
injection mold
temperature controller
unit
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Application number
KR1020100062304A
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Korean (ko)
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KR20120001492A (en
Inventor
김동헌
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김동헌
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Priority to KR1020100062304A priority Critical patent/KR101208807B1/en
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Publication of KR101208807B1 publication Critical patent/KR101208807B1/en

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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/17Component parts, details or accessories; Auxiliary operations
    • B29C45/76Measuring, controlling or regulating
    • B29C45/78Measuring, controlling or regulating of temperature
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/17Component parts, details or accessories; Auxiliary operations
    • B29C45/72Heating or cooling
    • B29C45/73Heating or cooling of the mould
    • B29C45/7312Construction of heating or cooling fluid flow channels
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C2945/00Indexing scheme relating to injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould
    • B29C2945/76Measuring, controlling or regulating
    • B29C2945/76494Controlled parameter
    • B29C2945/76531Temperature

Abstract

The present invention relates to a temperature controller for injection molds and the like.
According to the present invention is disclosed a technology that can improve the stability of the product by configuring a cooler that can indirectly cool the temperature control fluid.

Description

COOLER OF TEMPERATURE CONTROLLER FOR INJECTION MOLD AND TEMPERATURE CONTROLLER FOR INJECTION MOLD}

The present invention relates to a temperature controller for injection molds, and the like, and more particularly, to a technique for cooling a temperature control fluid.

In most cases, resin products are produced by injection molding.

Various resin materials are used depending on the product produced through the injection mold, and depending on the type of resin material, the required quality may be guaranteed even if the solidification time is fast.

Therefore, recently, a temperature controller is developed and used to solidify the injection molding in a short time to shorten the injection time.

That is, the temperature controller can reduce the injection molding time when the resin is solidified by lowering the temperature of the injection mold when it is necessary to produce a large amount of products within a faster time than the quality of the product (when PP resin or PE resin is used). Make sure

Regarding such an injection mold temperature controller, it is disclosed through Korean Utility Model Registration Application No. 25871 and Korean Patent Application Publication No. 2002-0041165.

The conventional temperature controller 100 for cooling the injection mold is configured to include a cooler 110, a distributor 120, a pump 130, and the like, as referenced in FIG. 1.

The cooler 110 (defined as a cooling tower in JP 2002-0041165) is provided to supply the coolant used to lower the temperature of the injection mold (M).

The distributor 120 is provided to divide and supply the coolant that is moved from the pump 130 to the injection mold M side, and generally has one inlet through which the coolant flows in and a plurality of outlets through which the coolant flows out.

The pump 130 is provided between the cooler 110 and the distributor 120, by forcibly pumping the coolant from the cooler 110 to the distributor 120 to move to the injection mold (M), ultimately The cooler 110-> pump 130-> dispenser 120-> mold (M)-> serves to force the fluid to circulate on the circulation path leading to the cooler (110).

By the way, the conventional temperature controller 100 as described above uses a method of directly circulating the cooling water, the factory supplied as the cooling water is mixed with various foreign substances, etc. due to the accumulation of foreign substances due to long use of the temperature controller, etc. There is a problem that the stability of the temperature controller is reduced and the life is shortened.

An object of the present invention is to provide a cooler capable of indirectly cooling a cooling fluid and a temperature controller to which the cooler is applied.

The cooler of the injection mold temperature controller according to the present invention for achieving the above object, the cooling element for outputting after cooling the temperature control fluid (hereinafter referred to as "fluid") input; And a supply device for supplying cooling water to the cooling element. It includes, The cooling element, Input unit for the fluid input; A cooling unit for indirectly cooling the fluid input through the input unit by the cooling water supplied by the supply device; And an output unit configured to output a fluid passing from the inlet to the cooling unit. It includes.

The cooling unit includes a plurality of cooling pipes extending from the input unit to the output unit, the fluid moves through the inside of the cooling pipe, and the cooling water supplied from the supply device contacts the outer surface of the cooling pipe to cool the cooling unit. Allow the fluid to pass through the inside of the pipe to cool.

Alternatively, the cooling unit includes a plurality of cooling pipes through which the coolant supplied from the supply device passes, and the fluid is input through the input unit and then cooled by contacting the outer surface of the cooling pipe and output through the output unit. It is also possible.

In addition, the injection mold temperature controller according to the present invention for achieving the above object, the pump for pumping to circulate a temperature control fluid (hereinafter referred to as "fluid") in a constant circulation path; A cooler according to claim 1 or 2 located on a circulation path of the fluid pumped by the pump, for cooling the fluid to a required temperature; And a distributor for dividing the fluid cooled through the cooler into a plurality of paths and supplying the injection mold to the injection mold side. .

According to the present invention, the temperature controlling fluid is cooled by the coolant surrounding the cooling pipe while passing through a plurality of thin cooling pipes, thereby increasing the cooling efficiency and increasing the stability and life of the temperature controller. .

1 is a configuration diagram for a temperature controller for injection mold according to the prior art.
2 is a block diagram of a temperature controller for injection mold according to a first embodiment of the present invention.
3 is a block diagram of a cooler applied to the temperature controller for injection mold of FIG.
4 is a perspective view of a cooling element applied to the cooler of FIG.
5 is a conceptual diagram of a cooling element applied to the cooler of FIG.
6 is a block diagram of a temperature controller for injection mold according to a second embodiment of the present invention.
FIG. 7 is a view illustrating a fluid tank applied to the temperature controller of FIG. 6.
8 is a conceptual diagram of a fluid tank applied to the temperature controller of FIG.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings. For simplicity of description, redundant description is omitted or compressed as much as possible.

≪ Embodiment 1 >

2 is a block diagram of a temperature controller for injection mold (200, hereinafter abbreviated as "temperature controller") according to the first embodiment of the present invention.

2, the temperature controller 200 according to the present embodiment includes a fluid tank 210, a detector 220, an open / close valve 230, a pump 240, a temperature control part 250, and a distributor. 260, a controller 270, and the like.

The fluid tank 210 is provided for storing a predetermined amount or more of the temperature control fluid (hereinafter, abbreviated as 'fluid') supplied through the supply line PL. It is common to use water as a fluid here, but any medium provided to the injection mold (M) side to control the temperature of the injection mold (M) may be preferably applied.

The detector 220 is provided to detect the amount of fluid stored in the fluid tank 210, and may be preferably applied to a general level sensor.

The open / close valve 230 is provided to open and close the supply line PL for supplying a fluid to the fluid tank 210.

The pump 240 passes through the fluid tank 210-> pump 240-> temperature control part 250-> distributor 260-> injection mold (M) sequentially and then back to the fluid tank 210 It is provided to forcibly circulate the fluid on the subsequent circulation path of the fluid.

The temperature regulating portion 250 is provided to adjust the fluid to the required temperature, and includes a cooler 251 and a heater 252.

Cooler 251 is provided to lower the fluid to the required temperature in order to lower the temperature of the injection mold (M). This cooler 251 is configured to include a cooling element 251a, a supply device 251b, and the like, as shown in FIG.

The cooling element 251a is for cooling and outputting the fluid and has an external shape as shown in FIG. 4. ) And an output unit 251a-3.

The input unit 251a-1 is located above and has an input port 251a-1a through which fluid is input and an internal space S 1 .

The cooling unit 251a-2 is a portion that is cooled while passing the fluid input through the input unit 251a-1 toward the output unit 251a-3 below, and is inside the input unit 251a-1. The plurality of cooling pipes CP communicate with the space S 1 and the internal space S 3 of the output unit 251a-3. Further, the cooling part (251a-2) will supply the cooling water supplied from (251b) inside the space (S 2) to the incoming inlet (251a-2a) and a cooling water outlet (251a-2b out from the inner space (S 2) )

An output unit (251a-3) is, and the position on the lower side, has an output, obtain the fluid output (251a-3a) and the inner space (S 3).

The supply device 251 b continuously supplies the cooling water to the internal space S 2 outside the pipe P of the cooling unit 251 a-2.

Therefore, the fluid input into the internal space S 1 of the input unit 251a-1 through the input port 251a-1a moves downward and passes through the cooling pipe P of the cooling unit 251a-2. At this time, after being indirectly cooled due to the influence of the cooling water in contact with the outer surfaces of the cooling pipe P, through the internal space (S 3 ) and the output port (251a-3a) of the output unit (251a-3). It moves to the heater 252 side.

The heater 252 is provided for heating the fluid to a required temperature in order to maintain the injection mold M above a predetermined temperature.

The distributor 260 is provided to divide and distribute the fluid whose temperature is controlled in the temperature control part 250 to the injection mold M side. The distributor 260 may be integrally formed with the heater 252 according to the implementation.

The controller 270 is provided to manually or automatically operate only one of the cooler 251 and the heater 252 according to the use mode.

In addition, the controller 270 controls the opening / closing valve 230 to open the supply line PL when the amount of the fluid sensed from the detector 220 is lower than a predetermined level so that the fluid is supplied to the fluid tank 210. If the amount of fluid sensed from the detector 220 is above a certain level, the on / off valve 230 is controlled to close the supply line PL to block the supply of the fluid. Further, according to the implementation, the degree of heating of the heater 252 by the controller 270 according to a command input from the user so that the temperature of the fluid can be adjusted to the temperature intended by the user through the controller 270 or the like. It is also possible to control the degree of cooling of the cooler 251.

Subsequently, the operation of the temperature controller 200 having the above-described configuration will be described.

When the user turns on the temperature controller 200, the controller 260 determines the amount of fluid stored in the fluid tank 210 sensed by the detector 220, and then opens and closes the fluid tank 210 if there is no fluid or lack thereof. After opening the valve 230 and supplying the fluid, when the fluid is above a certain level, the closing valve 230 is closed and the pump 240 is operated, and the fluid is present in the fluid tank 210 above the predetermined level. If it operates the pump 240 in a closed state of the shut-off valve 230.

In this case, since the fluid circulating continuously by the operation of the pump 240 may be difficult to reach the required temperature from the cooler 251 or the heater 252, the fluid tank 210 may be removed from the heater 252. It is preferable to configure the bypass path BL leading to the step of circulating the fluid on the circulation path along the bypass path BL during the initial operation.

Initial operation is made so that the fluid circulating through the bypass BL can be sufficiently reached to the required temperature within the time passing through the cooler 251 or the heater 252 at the speed according to the operation of the pump 240. Ground, the bypass (BL) is blocked and the fluid is circulated through the normal circulation path via the injection mold.

As described above, the fluid circulating on the path through which the fluid circulates passes through the cooling element 251a and moves toward the heater 252. As described above, the fluid circulates through the cooling pipe P of the cooling element 251a. While being indirectly cooled by the coolant.

Second Embodiment

6 is a block diagram of a temperature controller for injection mold (600, hereinafter abbreviated as "temperature controller") according to a second embodiment of the present invention.

2, the temperature controller 200 according to the present embodiment includes a fluid tank 610, a detector 620, an open / close valve 630, a pump 640, a heater 652, and a distributor 660. ), The controller 670 and the like.

The fluid tank 610 is provided to store a predetermined amount or more of the temperature control fluid (hereinafter, abbreviated as 'fluid') supplied through the supply line PL, and a cooling unit 612 for cooling the fluid therein. Have. That is, the fluid tank 610 in this embodiment not only has a function of storing the fluid but also has a function as a cooling element.

7 is a schematic perspective view of the fluid tank 610, Figure 8 is a conceptual diagram of the fluid tank 610.

7 and 8, the fluid tank 610 has an input part, a cooling part 612, and an output part, an inlet 614 to which fluid to be replenished is supplied, an inlet 615 into which cooling water is introduced, and It has an outlet 616 through which the coolant is drawn out.

The input unit is composed of four input ports 611a to 611d that allow the fluid fed back from the injection mold M side to enter the cooling unit 612 side.

The cooling unit 612 is a portion that is cooled while passing the fluid input through the four input ports 611a to 611d toward the output port 613, and extends from the inlet 615 to the outlet 616. It has a plurality of cooling pipes (CP).

The output unit is configured as an output port for outputting the fluid cooled in the cooling unit 612 to the pump 640 side.

Therefore, the coolant is introduced through the inlet 615 and then output through the cooling pipe CP to the outlet 616. The fluid is introduced into the internal space S 4 through the four input ports 611a to 611d. After being indirectly cooled by the coolant while being in contact with the outer surfaces of the cooling pipes CP, it exits from the internal space S 3 through the output port 613.

The pump 640 passes through the fluid tank 610-> the pump 640-> the heater 652-> the distributor 660-> the injection mold (M) sequentially and then back to the fluid tank 610 To circulate the fluid forcibly on the circulation path.

Description of the detector 620, the opening and closing valve 630, the heater 652, the distributor 660 and the controller 670 will be omitted.

Meanwhile, although the heaters 252 and 652 are provided in the above-described embodiments, it can be seen that there is no difficulty in constructing the temperature controller according to the present invention even if the heaters 252 and 652 are omitted. will be.

Therefore, although the detailed description of the present invention has been made by the embodiments with reference to the accompanying drawings, it is understood that the present invention is limited only to the above embodiments, since the above embodiments have only been described with reference to preferred examples of the present invention. It should not be understood that the scope of the invention should be understood by the claims and equivalent concepts described below.

200: temperature controller
240 pump
251: cooler
251a: cooling element
251b: Feeding device
251a-1: input unit
251a-2: cooling part
P: cooling pipe
251a-3: Output
260: Splitter

Claims (4)

  1. A cooling element for cooling and outputting an input temperature control fluid (hereinafter, referred to as a 'fluid');
    A supply device for supplying coolant to the cooling element;
    A heater for heating the fluid; And
    An overload prevention bypass passage through which the fluid flows from the heater to the fluid tank; Including;
    The cooling element,
    An input unit through which a fluid is input;
    A cooling unit for indirectly cooling the fluid input through the input unit by the cooling water supplied by the supply device; And
    An output unit configured to output a fluid passing from the input unit through the cooling unit; ≪ RTI ID = 0.0 >
    Temperature controller for injection mold.
  2. The method of claim 1,
    The cooling unit includes a plurality of cooling pipes from the input unit to the output unit,
    Fluid moves through the interior of the cooling pipe,
    Cooling water supplied from the supply device cools the fluid passing through the inside of the cooling pipe by contacting the outer surface of the cooling pipe.
    Temperature controller for injection mold.
  3. The method of claim 1,
    The cooling unit includes a plurality of cooling pipes passing through the cooling water supplied from the supply device,
    After the fluid is input through the input unit is cooled by contacting the outer surface of the cooling pipe is output through the output unit, characterized in that
    Temperature controller for injection mold.
  4. The method of claim 1,
    A pump for pumping a temperature controlling fluid (hereinafter referred to as 'fluid') to circulate in a constant circulation path;
    A cooler according to any one of claims 1 to 3, located on a circulation path of the fluid pumped by the pump, for cooling the fluid to a required temperature; And
    A distributor for dividing the fluid cooled through the cooler into a plurality of paths and supplying the injection mold to the injection mold side; ≪ RTI ID = 0.0 >
    Temperature controller for injection molding machine.
KR1020100062304A 2010-06-29 2010-06-29 Cooler of temperature controller for injection mold and temperature controller for injection mold KR101208807B1 (en)

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Application Number Priority Date Filing Date Title
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Application Number Priority Date Filing Date Title
KR1020100062304A KR101208807B1 (en) 2010-06-29 2010-06-29 Cooler of temperature controller for injection mold and temperature controller for injection mold

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KR101208807B1 true KR101208807B1 (en) 2012-12-06

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Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006001130A (en) * 2004-06-17 2006-01-05 Matsui Mfg Co Mold temperature regulating system

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006001130A (en) * 2004-06-17 2006-01-05 Matsui Mfg Co Mold temperature regulating system

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